# ConstraintSet
Artifact: [androidx.constraintlayout:constraintlayout](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/widget/ConstraintSet.java+class:androidx.constraintlayout.widget.ConstraintSet) Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
*** ** * ** ***
```
class ConstraintSet
```
*** ** * ** ***
Defines a set of constraints to be used with `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout`.
`ConstraintSet` enables you create and save constraints and apply them to an existing `ConstraintLayout`. For details about constraint behaviour, see `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout`.
`ConstraintsSet` can be created in various ways:
- Manually --- `c = new ConstraintSet(); c.connect(...);`
- From an `R.layout.*` object --- `c.clone(context, R.layout.layout1);`
- From a `ConstraintLayout` --- `c.clone(constraintLayout);`
Example code:
```kotlin
import android.content.Context;
import android.os.Bundle;
import android.support.constraint.ConstraintLayout;
import android.support.constraint.ConstraintSet;
import android.support.transition.TransitionManager;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
public class MainActivity extends AppCompatActivity {
ConstraintSet mConstraintSet1 = new ConstraintSet(); // Create a ConstraintSet.
ConstraintSet mConstraintSet2 = new ConstraintSet(); // Create a ConstraintSet.
ConstraintLayout mConstraintLayout; // Cache the ConstraintLayout.
boolean mOld = true;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Context context = this;
mConstraintSet2.clone(context, R.layout.state2); // Get constraints from layout.
setContentView(R.layout.state1);
mConstraintLayout = (ConstraintLayout) findViewById(R.id.activity_main);
mConstraintSet1.clone(mConstraintLayout); // Get constraints from ConstraintSet.
}
public void foo(View view) {
TransitionManager.beginDelayedTransition(mConstraintLayout);
if (mOld = !mOld) {
mConstraintSet1.applyTo(mConstraintLayout); // Set new constraints.
} else {
mConstraintSet2.applyTo(mConstraintLayout); // Set new constraints.
}
}
}
```
## Summary
| ### Nested types |
|---|
| `class https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint` |
| `class https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Layout` |
| `class https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Motion` |
| `class https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.PropertySet` |
| `class https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Transform` |
| ### Constants |
|---|---|
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BASELINE() = 5` The baseline of the text in a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM() = 4` The bottom side of a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_PACKED() = 2` Chain packed style |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD() = 0` Chain spread style |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD_INSIDE() = 1` Chain spread inside style |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CIRCLE_REFERENCE() = 8` Circle reference from a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END() = 7` The right side of a view in left to right languages. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#GONE() = 8` This view is gone, and will not take any space for layout purposes. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#HORIZONTAL() = 0` The horizontal orientation. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#HORIZONTAL_GUIDELINE() = 0` Used to create a horizontal create guidelines. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#INVISIBLE() = 4` This view is invisible, but it still takes up space for layout purposes. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT() = 1` The left side of a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT() = 0` Dimension will be controlled by constraints |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT_PERCENT() = 2` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT_SPREAD() = 0` Calculate the size of a view in 0 dp by reducing the constrains gaps as much as possible |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT_WRAP() = 1` How to calculate the size of a view in 0 dp by using its wrap_content size |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#PARENT_ID() = 0` References the id of the parent. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT() = 2` The right side of a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ROTATE_LEFT_OF_PORTRATE() = 4` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ROTATE_NONE() = 0` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ROTATE_PORTRATE_OF_LEFT() = 2` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ROTATE_PORTRATE_OF_RIGHT() = 1` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ROTATE_RIGHT_OF_PORTRATE() = 3` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START() = 6` The left side of a view in left to right languages. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP() = 3` The top of a view. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#UNSET() = -1` Used to indicate a parameter is cleared or not set |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VERTICAL() = 1` The vertical orientation. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VERTICAL_GUIDELINE() = 1` Used to create a vertical create guidelines. see `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#create(int,int)` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_IGNORE() = 1` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_NORMAL() = 0` |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBLE() = 0` This view is visible. |
| `const https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#WRAP_CONTENT() = -2` Dimension will set by the view's content |
| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#ConstraintSet()()` |
| ### Public functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addColorAttributes(java.lang.String...)(attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Add attribute of type Color |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addFloatAttributes(java.lang.String...)(attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Add attribute of type float |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addIntAttributes(java.lang.String...)(attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Add attribute of type Int |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addStringAttributes(java.lang.String...)(attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Add attribute of type string |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addToHorizontalChain(int,int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Adds a view to a horizontal chain. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addToHorizontalChainRTL(int,int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Adds a view to a horizontal chain. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#addToVerticalChain(int,int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Adds a view to a vertical chain. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyCustomAttributes(androidx.constraintlayout.widget.ConstraintLayout)(constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!)` Apply custom attributes alone |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyDeltaFrom(androidx.constraintlayout.widget.ConstraintSet)(cs: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!)` Get the delta form the ConstraintSet and aplly to this |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyTo(androidx.constraintlayout.widget.ConstraintLayout)(constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!)` Apply the constraints to a ConstraintLayout. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyToHelper(androidx.constraintlayout.widget.ConstraintHelper,androidx.constraintlayout.core.widgets.ConstraintWidget,androidx.constraintlayout.widget.ConstraintLayout.LayoutParams,android.util.SparseArray)( helper: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintHelper!, child: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/ConstraintWidget!, layoutParams: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams!, mapIdToWidget: https://developer.android.com/reference/android/util/SparseArray.html! )` Apply Layout to Helper widget |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyToLayoutParams(int,androidx.constraintlayout.widget.ConstraintLayout.LayoutParams)(id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, layoutParams: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams!)` Fill in a ConstraintLayout LayoutParam based on the id. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#applyToWithoutCustom(androidx.constraintlayout.widget.ConstraintLayout)(constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!)` Apply the constraints to a ConstraintLayout. |
| `java-static https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#buildDelta(android.content.Context,org.xmlpull.v1.XmlPullParser)(context: https://developer.android.com/reference/android/content/Context.html!, parser: https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html!)` Used to read a ConstraintDelta |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#center(int,int,int,int,int,int,int,float)( centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, firstID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, firstSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, firstMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, secondId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, secondSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, secondMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html )` Center widget between the other two widgets. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerHorizontally(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Centers the view horizontally relative to toView's position. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerHorizontally(int,int,int,int,int,int,int,float)( centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html )` Centers the widget horizontally to the left and right side on another widgets sides. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerHorizontallyRtl(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Centers the view horizontally relative to toView's position. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerHorizontallyRtl(int,int,int,int,int,int,int,float)( centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html )` Centers the widgets horizontally to the left and right side on another widgets sides. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerVertically(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Centers the view vertically relative to toView's position. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#centerVertically(int,int,int,int,int,int,int,float)( centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, topSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, topMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html )` Centers the widgets vertically to the top and bottom side on another widgets sides. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clear(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Remove all constraints from this view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clear(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Remove a constraint from this view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clone(androidx.constraintlayout.widget.ConstraintLayout)(constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!)` Copy the layout parameters of a ConstraintLayout. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clone(androidx.constraintlayout.widget.Constraints)(constraints: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/Constraints!)` Copy the layout parameters of a ConstraintLayout. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clone(androidx.constraintlayout.widget.ConstraintSet)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!)` Copy the constraints from a layout. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#clone(android.content.Context,int)(context: https://developer.android.com/reference/android/content/Context.html!, constraintLayoutId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Copy the constraints from a layout. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#connect(int,int,int,int)(startID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Create a constraint between two widgets. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#connect(int,int,int,int,int)(startID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Create a constraint between two widgets. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainCircle(int,int,int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, radius: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, angle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Constrain the view on a circle constraint |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainDefaultHeight(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets how the height is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainDefaultWidth(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets how the width is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainHeight(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the height of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainMaxHeight(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the maximum height of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainMaxWidth(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the maximum width of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainMinHeight(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the height of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainMinWidth(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the width of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainPercentHeight(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, percent: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Sets the height of the view as a percentage of the parent. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainPercentWidth(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, percent: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Sets the width of the view as a percentage of the parent. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainWidth(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the width of the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainedHeight(int,boolean)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, constrained: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)` Sets how the height is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#constrainedWidth(int,boolean)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, constrained: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)` Sets how the width is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#create(int,int)(guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, orientation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Creates a ConstraintLayout virtual object. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#createBarrier(int,int,int,int...)( id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, direction: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, referenced: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html! )` Creates a ConstraintLayout Barrier object. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#createHorizontalChain(int,int,int,int,int[],float[],int)( leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, leftSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rightSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!, weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!, style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html )` Spaces a set of widgets horizontally between the view startID and endId. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#createHorizontalChainRtl(int,int,int,int,int[],float[],int)( startId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!, weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!, style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html )` Spaces a set of widgets horizontal between the view startID and endId. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#createVerticalChain(int,int,int,int,int[],float[],int)( topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, topSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bottomSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!, weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!, style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html )` Spaces a set of widgets vertically between the view topId and bottomId. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#dump(androidx.constraintlayout.motion.widget.MotionScene,int...)(scene: https://developer.android.com/reference/kotlin/androidx/constraintlayout/motion/widget/MotionScene!, ids: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!)` Dump the contents |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getApplyElevation(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` return with the constraint set will apply elevation for the specified view. |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getConstraint(int)(id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` |
| `https://developer.android.com/reference/java/util/HashMap.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getCustomAttributeSet()()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getHeight(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Get the height set in the view |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getKnownIds()()` |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getParameters(int)(mId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getReferencedIds(int)(id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` get the reference id's of a helper. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getStateLabels()()` Get the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getVisibility(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Get the visibility flag set in this view |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getVisibilityMode(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` ConstraintSet will not setVisibility. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#getWidth(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Get the width set in the view |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#isForceId()()` Enforce id are required for all ConstraintLayout children to use ConstraintSet. default = true; |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#isValidateOnParse()()` If true perform validation checks when parsing ConstraintSets This will slow down parsing and should only be used for debugging |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#load(android.content.Context,org.xmlpull.v1.XmlPullParser)(context: https://developer.android.com/reference/android/content/Context.html!, parser: https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html!)` Load a constraint set from a constraintSet.xml file |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#load(android.content.Context,int)(context: https://developer.android.com/reference/android/content/Context.html!, resourceId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Load a constraint set from a constraintSet.xml file. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#matchesLabels(java.lang.String...)(types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Test if the list of strings matches labels defined on this constraintSet |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#parseColorAttributes(androidx.constraintlayout.widget.ConstraintSet.Constraint,java.lang.String)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!, attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Parse color |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#parseFloatAttributes(androidx.constraintlayout.widget.ConstraintSet.Constraint,java.lang.String)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!, attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Parse floats |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#parseIntAttributes(androidx.constraintlayout.widget.ConstraintSet.Constraint,java.lang.String)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!, attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Parse int |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#parseStringAttributes(androidx.constraintlayout.widget.ConstraintSet.Constraint,java.lang.String)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!, attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Parse string |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#readFallback(androidx.constraintlayout.widget.ConstraintLayout)(constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!)` This will copy Constraints from the ConstraintLayout if it does not have parameters |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#readFallback(androidx.constraintlayout.widget.ConstraintSet)(set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!)` This will copy Constraints from the ConstraintSet |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#removeAttribute(java.lang.String)(attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Remove the attribute |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#removeFromHorizontalChain(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Removes a view from a horizontal chain. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#removeFromVerticalChain(int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Removes a view from a vertical chain. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setAlpha(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, alpha: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the alpha of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setApplyElevation(int,boolean)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, apply: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)` set if elevation will be applied to the view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setBarrierType(int,int)(id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, type: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` SEt tye type of barier |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setColorValue(int,java.lang.String,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Set the value of an attribute of type color |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setDimensionRatio(int,java.lang.String)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, ratio: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Constrains the views aspect ratio. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setEditorAbsoluteX(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, position: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setEditorAbsoluteY(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, position: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setElevation(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, elevation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the elevation of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setFloatValue(int,java.lang.String,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Set the value of an attribute of type float |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setForceId(boolean)(forceId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)` Enforce id are required for all ConstraintLayout children to use ConstraintSet. default = true; |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setGoneMargin(int,int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the gone margin. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setGuidelineBegin(int,int)(guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Set the guideline's distance form the top or left edge. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setGuidelineEnd(int,int)(guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Set a guideline's distance to end. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setGuidelinePercent(int,float)(guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, ratio: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Set a Guideline's percent. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setHorizontalBias(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the horizontal bias of the view (used with views constrained on left and right). |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setHorizontalChainStyle(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, chainStyle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` How the elements of the horizontal chain will be positioned. if the dimension behaviour is set to MATCH_CONSTRAINT. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setHorizontalWeight(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, weight: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` The child's weight that we can use to distribute the available horizontal space in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setIntValue(int,java.lang.String,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Set the value of an attribute of type int |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setLayoutWrapBehavior(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, behavior: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the wrap behavior of the widget in the parent's wrap computation |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setMargin(int,int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Sets the margin. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setReferencedIds(int,int...)(id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, referenced: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!)` sets the reference id's of a barrier. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setRotation(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rotation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout rotation about the Z axis of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setRotationX(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rotationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout rotation about the X axis of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setRotationY(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, rotationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout rotation about the Y axis of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setScaleX(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, scaleX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout scale in X of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setScaleY(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, scaleY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout scale in Y of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setStateLabels(java.lang.String)(types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Set the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setStateLabelsList(java.lang.String...)(types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!)` Set the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setStringValue(int,java.lang.String,java.lang.String)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Set the value of an attribute of type string |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTransformPivot(int,float,float)( viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, transformPivotX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html, transformPivotY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html )` Set X,Y location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTransformPivotX(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, transformPivotX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Set X location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTransformPivotY(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, transformPivotY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Set Y location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTranslation(int,float,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, translationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html, translationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout translation of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTranslationX(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, translationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout X translation of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTranslationY(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, translationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the post-layout Y translation of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setTranslationZ(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, translationZ: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the translation in Z of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setValidateOnParse(boolean)(validate: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)` If true perform validation checks when parsing ConstraintSets This will slow down parsing and should only be used for debugging |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVerticalBias(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Adjust the vertical bias of the view (used with views constrained on left and right). |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVerticalChainStyle(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, chainStyle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` How the elements of the vertical chain will be positioned. in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVerticalWeight(int,float)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, weight: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` The child's weight that we can use to distribute the available vertical space in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVisibility(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, visibility: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Adjust the visibility of a view. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVisibilityMode(int,int)(viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, visibilityMode: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` ConstraintSet will not setVisibility. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#writeState(java.io.Writer,androidx.constraintlayout.widget.ConstraintLayout,int)(writer: https://developer.android.com/reference/java/io/Writer.html!, layout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!, flags: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Write the state to a Writer |
| ### Public properties |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#derivedState()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#mIdString()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#mRotate()` |
## Constants
### BASELINE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val BASELINE = 5: Int
```
The baseline of the text in a view.
### BOTTOM
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val BOTTOM = 4: Int
```
The bottom side of a view.
### CHAIN_PACKED
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val CHAIN_PACKED = 2: Int
```
Chain packed style
### CHAIN_SPREAD
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val CHAIN_SPREAD = 0: Int
```
Chain spread style
### CHAIN_SPREAD_INSIDE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val CHAIN_SPREAD_INSIDE = 1: Int
```
Chain spread inside style
### CIRCLE_REFERENCE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val CIRCLE_REFERENCE = 8: Int
```
Circle reference from a view.
### END
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val END = 7: Int
```
The right side of a view in left to right languages. In right to left languages it corresponds to the left side of the view
### GONE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val GONE = 8: Int
```
This view is gone, and will not take any space for layout purposes. Use with `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVisibility(int,int)` and [` android:visibility`.](https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#attr_android:visibility)
### HORIZONTAL
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val HORIZONTAL = 0: Int
```
The horizontal orientation.
### HORIZONTAL_GUIDELINE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val HORIZONTAL_GUIDELINE = 0: Int
```
Used to create a horizontal create guidelines.
### INVISIBLE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val INVISIBLE = 4: Int
```
This view is invisible, but it still takes up space for layout purposes. Use with `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVisibility(int,int)` and [` android:visibility`.](https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#attr_android:visibility)
### LEFT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val LEFT = 1: Int
```
The left side of a view.
### MATCH_CONSTRAINT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val MATCH_CONSTRAINT = 0: Int
```
Dimension will be controlled by constraints
### MATCH_CONSTRAINT_PERCENT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val MATCH_CONSTRAINT_PERCENT = 2: Int
```
### MATCH_CONSTRAINT_SPREAD
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val MATCH_CONSTRAINT_SPREAD = 0: Int
```
Calculate the size of a view in 0 dp by reducing the constrains gaps as much as possible
### MATCH_CONSTRAINT_WRAP
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val MATCH_CONSTRAINT_WRAP = 1: Int
```
How to calculate the size of a view in 0 dp by using its wrap_content size
### PARENT_ID
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val PARENT_ID = 0: Int
```
References the id of the parent. Used in:
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#connect(int,int,int,int,int)`
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#center(int,int,int,int,int,int,int,float)`
### RIGHT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val RIGHT = 2: Int
```
The right side of a view.
### ROTATE_LEFT_OF_PORTRATE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val ROTATE_LEFT_OF_PORTRATE = 4: Int
```
### ROTATE_NONE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val ROTATE_NONE = 0: Int
```
### ROTATE_PORTRATE_OF_LEFT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val ROTATE_PORTRATE_OF_LEFT = 2: Int
```
### ROTATE_PORTRATE_OF_RIGHT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val ROTATE_PORTRATE_OF_RIGHT = 1: Int
```
### ROTATE_RIGHT_OF_PORTRATE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val ROTATE_RIGHT_OF_PORTRATE = 3: Int
```
### START
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val START = 6: Int
```
The left side of a view in left to right languages. In right to left languages it corresponds to the right side of the view
### TOP
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val TOP = 3: Int
```
The top of a view.
### UNSET
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val UNSET = -1: Int
```
Used to indicate a parameter is cleared or not set
### VERTICAL
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val VERTICAL = 1: Int
```
The vertical orientation.
### VERTICAL_GUIDELINE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val VERTICAL_GUIDELINE = 1: Int
```
Used to create a vertical create guidelines. see `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#create(int,int)`
### VISIBILITY_MODE_IGNORE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val VISIBILITY_MODE_IGNORE = 1: Int
```
### VISIBILITY_MODE_NORMAL
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val VISIBILITY_MODE_NORMAL = 0: Int
```
### VISIBLE
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val VISIBLE = 0: Int
```
This view is visible. Use with `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#setVisibility(int,int)` and [` android:visibility`.](https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#attr_android:visibility)
### WRAP_CONTENT
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
const val WRAP_CONTENT = -2: Int
```
Dimension will set by the view's content
## Public constructors
### ConstraintSet
Added in 2.2.2
```
ConstraintSet()
```
## Public functions
### addColorAttributes
```
fun addColorAttributes(attributeName: Array!): Unit
```
Add attribute of type Color
| Parameters |
|---|---|
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | |
### addFloatAttributes
```
fun addFloatAttributes(attributeName: Array!): Unit
```
Add attribute of type float
| Parameters |
|---|---|
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | |
### addIntAttributes
```
fun addIntAttributes(attributeName: Array!): Unit
```
Add attribute of type Int
| Parameters |
|---|---|
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | |
### addStringAttributes
```
fun addStringAttributes(attributeName: Array!): Unit
```
Add attribute of type string
| Parameters |
|---|---|
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | |
### addToHorizontalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun addToHorizontalChain(viewId: Int, leftId: Int, rightId: Int): Unit
```
Adds a view to a horizontal chain.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view to add |
| `leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view in chain to the left |
| `rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view in chain to the right |
### addToHorizontalChainRTL
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun addToHorizontalChainRTL(viewId: Int, leftId: Int, rightId: Int): Unit
```
Adds a view to a horizontal chain.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view to add |
| `leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view to the start side |
| `rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view to the end side |
### addToVerticalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun addToVerticalChain(viewId: Int, topId: Int, bottomId: Int): Unit
```
Adds a view to a vertical chain.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view to add to a vertical chain |
| `topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view above. |
| `bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | view below |
### applyCustomAttributes
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyCustomAttributes(constraintLayout: ConstraintLayout!): Unit
```
Apply custom attributes alone
| Parameters |
|---|---|
| `constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | |
### applyDeltaFrom
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyDeltaFrom(cs: ConstraintSet!): Unit
```
Get the delta form the ConstraintSet and aplly to this
| Parameters |
|---|---|
| `cs: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!` | |
### applyTo
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyTo(constraintLayout: ConstraintLayout!): Unit
```
Apply the constraints to a ConstraintLayout.
| Parameters |
|---|---|
| `constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | to be modified |
### applyToHelper
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyToHelper(
helper: ConstraintHelper!,
child: ConstraintWidget!,
layoutParams: ConstraintLayout.LayoutParams!,
mapIdToWidget: SparseArray!
): Unit
```
Apply Layout to Helper widget
| Parameters |
|---|---|
| `helper: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintHelper!` | |
| `child: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/widgets/ConstraintWidget!` | |
| `layoutParams: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams!` | |
| `mapIdToWidget: https://developer.android.com/reference/android/util/SparseArray.html!` | |
### applyToLayoutParams
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyToLayoutParams(id: Int, layoutParams: ConstraintLayout.LayoutParams!): Unit
```
Fill in a ConstraintLayout LayoutParam based on the id.
| Parameters |
|---|---|
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | Id of the view |
| `layoutParams: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams!` | LayoutParams to be filled |
### applyToWithoutCustom
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun applyToWithoutCustom(constraintLayout: ConstraintLayout!): Unit
```
Apply the constraints to a ConstraintLayout.
| Parameters |
|---|---|
| `constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | to be modified |
### buildDelta
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
java-static fun buildDelta(context: Context!, parser: XmlPullParser!): ConstraintSet.Constraint!
```
Used to read a ConstraintDelta
| Parameters |
|---|---|
| `context: https://developer.android.com/reference/android/content/Context.html!` | |
| `parser: https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html!` | |
| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
### center
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun center(
centerID: Int,
firstID: Int,
firstSide: Int,
firstMargin: Int,
secondId: Int,
secondSide: Int,
secondMargin: Int,
bias: Float
): Unit
```
Center widget between the other two widgets. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`) Note, sides must be all vertical or horizontal sides.
| Parameters |
|---|---|
| `centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the widget to be centered |
| `firstID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the first widget to connect the left or top of the widget to |
| `firstSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the widget to connect to |
| `firstMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the connection margin |
| `secondId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the ID of the second widget to connect to right or top of the widget to |
| `secondSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the widget to connect to |
| `secondMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the connection margin |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the ratio between two connections |
### centerHorizontally
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerHorizontally(viewId: Int, toView: Int): Unit
```
Centers the view horizontally relative to toView's position.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center Horizontally |
| `toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center on (or in) |
### centerHorizontally
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerHorizontally(
centerID: Int,
leftId: Int,
leftSide: Int,
leftMargin: Int,
rightId: Int,
rightSide: Int,
rightMargin: Int,
bias: Float
): Unit
```
Centers the widget horizontally to the left and right side on another widgets sides. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`)
| Parameters |
|---|---|
| `centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of widget to be centered |
| `leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the left side |
| `leftSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the leftId widget to connect to |
| `leftMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the left side |
| `rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the right side |
| `rightSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the rightId widget to connect to |
| `rightMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the right side |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | The ratio of the space on the left vs. right sides 0.5 is centered (default) |
### centerHorizontallyRtl
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerHorizontallyRtl(viewId: Int, toView: Int): Unit
```
Centers the view horizontally relative to toView's position.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center Horizontally |
| `toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center on (or in) |
### centerHorizontallyRtl
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerHorizontallyRtl(
centerID: Int,
startId: Int,
startSide: Int,
startMargin: Int,
endId: Int,
endSide: Int,
endMargin: Int,
bias: Float
): Unit
```
Centers the widgets horizontally to the left and right side on another widgets sides. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`)
| Parameters |
|---|---|
| `centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of widget to be centered |
| `startId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the start side (left in non rtl languages) |
| `startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the startId widget to connect to |
| `startMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the start side |
| `endId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the start side (left in non rtl languages) |
| `endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the endId widget to connect to |
| `endMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the end side |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | The ratio of the space on the start vs end side 0.5 is centered (default) |
### centerVertically
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerVertically(viewId: Int, toView: Int): Unit
```
Centers the view vertically relative to toView's position.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center Horizontally |
| `toView: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center on (or in) |
### centerVertically
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun centerVertically(
centerID: Int,
topId: Int,
topSide: Int,
topMargin: Int,
bottomId: Int,
bottomSide: Int,
bottomMargin: Int,
bias: Float
): Unit
```
Centers the widgets vertically to the top and bottom side on another widgets sides. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM()`)
| Parameters |
|---|---|
| `centerID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of widget to be centered |
| `topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the top side |
| `topSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the leftId widget to connect to |
| `topMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the top side |
| `bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The Id of the widget on the bottom side |
| `bottomSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side of the bottomId widget to connect to |
| `bottomMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The margin on the bottom side |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | The ratio of the space on the top vs. bottom sides 0.5 is centered (default) |
### clear
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clear(viewId: Int): Unit
```
Remove all constraints from this view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to remove all connections to |
### clear
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clear(viewId: Int, anchor: Int): Unit
```
Remove a constraint from this view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to center on (or in) |
| `anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the Anchor to remove constraint from |
### clone
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clone(constraintLayout: ConstraintLayout!): Unit
```
Copy the layout parameters of a ConstraintLayout.
| Parameters |
|---|---|
| `constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | The ConstraintLayout to be copied |
### clone
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clone(constraints: Constraints!): Unit
```
Copy the layout parameters of a ConstraintLayout.
| Parameters |
|---|---|
| `constraints: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/Constraints!` | The ConstraintLayout to be copied |
### clone
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clone(set: ConstraintSet!): Unit
```
Copy the constraints from a layout.
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!` | constraint set to copy |
### clone
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun clone(context: Context!, constraintLayoutId: Int): Unit
```
Copy the constraints from a layout.
| Parameters |
|---|---|
| `context: https://developer.android.com/reference/android/content/Context.html!` | the context for the layout inflation |
| `constraintLayoutId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the layout file |
### connect
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun connect(startID: Int, startSide: Int, endID: Int, endSide: Int): Unit
```
Create a constraint between two widgets. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BASELINE()`)
| Parameters |
|---|---|
| `startID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the ID of the widget to be constrained |
| `startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the widget to constrain |
| `endID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the widget to constrain to |
| `endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of widget to constrain to |
### connect
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun connect(startID: Int, startSide: Int, endID: Int, endSide: Int, margin: Int): Unit
```
Create a constraint between two widgets. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BASELINE()`)
| Parameters |
|---|---|
| `startID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the ID of the widget to be constrained |
| `startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the widget to constrain |
| `endID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the widget to constrain to |
| `endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of widget to constrain to |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the margin to constrain (margin must be positive) |
### constrainCircle
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainCircle(viewId: Int, id: Int, radius: Int, angle: Float): Unit
```
Constrain the view on a circle constraint
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the view we constrain |
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the view we constrain relative to |
| `radius: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the radius of the circle in degrees |
| `angle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the angle |
### constrainDefaultHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainDefaultHeight(viewId: Int, height: Int): Unit
```
Sets how the height is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. Default is spread.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its matchConstraintDefaultHeight |
| `height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD |
### constrainDefaultWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainDefaultWidth(viewId: Int, width: Int): Unit
```
Sets how the width is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. Default is spread.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its matchConstraintDefaultWidth |
| `width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | SPREAD or WRAP |
### constrainHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainHeight(viewId: Int, height: Int): Unit
```
Sets the height of the view. It can be a dimension, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#WRAP_CONTENT()` or `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT()`.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its height |
| `height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the height of the view |
### constrainMaxHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainMaxHeight(viewId: Int, height: Int): Unit
```
Sets the maximum height of the view. It is a dimension, It is only applicable if height is #MATCH_CONSTRAINT}.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust it height |
| `height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the maximum height of the constraint |
### constrainMaxWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainMaxWidth(viewId: Int, width: Int): Unit
```
Sets the maximum width of the view. It is a dimension, It is only applicable if width is #MATCH_CONSTRAINT}.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its max height |
| `width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the maximum width of the view |
### constrainMinHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainMinHeight(viewId: Int, height: Int): Unit
```
Sets the height of the view. It is a dimension, It is only applicable if height is #MATCH_CONSTRAINT}.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its min height |
| `height: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the minimum height of the view |
### constrainMinWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainMinWidth(viewId: Int, width: Int): Unit
```
Sets the width of the view. It is a dimension, It is only applicable if width is #MATCH_CONSTRAINT}.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its min height |
| `width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the minimum width of the view |
### constrainPercentHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainPercentHeight(viewId: Int, percent: Float): Unit
```
Sets the height of the view as a percentage of the parent.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `percent: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | |
### constrainPercentWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainPercentWidth(viewId: Int, percent: Float): Unit
```
Sets the width of the view as a percentage of the parent.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `percent: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | |
### constrainWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainWidth(viewId: Int, width: Int): Unit
```
Sets the width of the view. It can be a dimension, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#WRAP_CONTENT()` or `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#MATCH_CONSTRAINT()`.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its width |
| `width: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the width of the view |
### constrainedHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainedHeight(viewId: Int, constrained: Boolean): Unit
```
Sets how the height is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. Default is spread.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its matchConstraintDefaultHeight |
| `constrained: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | if true height will be constrained |
### constrainedWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun constrainedWidth(viewId: Int, constrained: Boolean): Unit
```
Sets how the width is calculated ether MATCH_CONSTRAINT_WRAP or MATCH_CONSTRAINT_SPREAD. Default is spread.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its matchConstraintDefaultWidth |
| `constrained: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | if true with will be constrained |
### create
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun create(guidelineID: Int, orientation: Int): Unit
```
Creates a ConstraintLayout virtual object. Currently only horizontal or vertical GuideLines.
| Parameters |
|---|---|
| `guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of guideline to create |
| `orientation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the Orientation of the guideline |
### createBarrier
```
fun createBarrier(
id: Int,
direction: Int,
margin: Int,
referenced: IntArray!
): Unit
```
Creates a ConstraintLayout Barrier object.
| Parameters |
|---|---|
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `direction: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | Barrier.{LEFT,RIGHT,TOP,BOTTOM,START,END} |
| `referenced: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | |
### createHorizontalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun createHorizontalChain(
leftId: Int,
leftSide: Int,
rightId: Int,
rightSide: Int,
chainIds: IntArray!,
weights: FloatArray!,
style: Int
): Unit
```
Spaces a set of widgets horizontally between the view startID and endId. Widgets can be spaced with weights. This operation sets all the related margins to 0.
(for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`)
| Parameters |
|---|---|
| `leftId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `leftSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the start to connect to |
| `rightId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `rightSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the right to connect to |
| `chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | The widgets in the chain |
| `weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!` | The weight to assign to each element in the chain or null |
| `style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The type of chain |
### createHorizontalChainRtl
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun createHorizontalChainRtl(
startId: Int,
startSide: Int,
endId: Int,
endSide: Int,
chainIds: IntArray!,
weights: FloatArray!,
style: Int
): Unit
```
Spaces a set of widgets horizontal between the view startID and endId. Widgets can be spaced with weights. (for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#START()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#END()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#LEFT()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#RIGHT()`)
| Parameters |
|---|---|
| `startId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `startSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the start to connect to |
| `endId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `endSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the end to connect to |
| `chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | The widgets in the chain |
| `weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!` | The weight to assign to each element in the chain or null |
| `style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The type of chain |
### createVerticalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun createVerticalChain(
topId: Int,
topSide: Int,
bottomId: Int,
bottomSide: Int,
chainIds: IntArray!,
weights: FloatArray!,
style: Int
): Unit
```
Spaces a set of widgets vertically between the view topId and bottomId. Widgets can be spaced with weights. This operation sets all the related margins to 0.
(for sides see: `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#TOP()`, `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#BOTTOM()`)
| Parameters |
|---|---|
| `topId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `topSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the start to connect to |
| `bottomId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The id of the widget to connect to or PARENT_ID |
| `bottomSide: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the side of the right to connect to |
| `chainIds: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | widgets to use as a chain |
| `weights: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float-array/index.html!` | can be null |
| `style: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | set the style of the chain |
### dump
```
fun dump(scene: MotionScene!, ids: IntArray!): Unit
```
Dump the contents
| Parameters |
|---|---|
| `scene: https://developer.android.com/reference/kotlin/androidx/constraintlayout/motion/widget/MotionScene!` | |
| `ids: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | |
### getApplyElevation
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getApplyElevation(viewId: Int): Boolean
```
return with the constraint set will apply elevation for the specified view.
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | true if the elevation will be set on this view (default is false) |
### getConstraint
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getConstraint(id: Int): ConstraintSet.Constraint!
```
### getCustomAttributeSet
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getCustomAttributeSet(): HashMap!
```
### getHeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getHeight(viewId: Int): Int
```
Get the height set in the view
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the view |
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | return the height constraint of the view |
### getKnownIds
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getKnownIds(): Array!
```
### getParameters
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getParameters(mId: Int): ConstraintSet.Constraint!
```
| Parameters |
|---|---|
| `mId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
### getReferencedIds
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getReferencedIds(id: Int): Array!
```
get the reference id's of a helper.
| Parameters |
|---|---|
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | array of id's |
### getStateLabels
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getStateLabels(): Array!
```
Get the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | an array of type strings |
### getVisibility
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getVisibility(viewId: Int): Int
```
Get the visibility flag set in this view
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the view |
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the visibility constraint for the view |
### getVisibilityMode
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getVisibilityMode(viewId: Int): Int
```
ConstraintSet will not setVisibility. `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_IGNORE()` or `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_NORMAL()`.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view |
### getWidth
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun getWidth(viewId: Int): Int
```
Get the width set in the view
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the id of the view |
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | return the width constraint of the view |
### isForceId
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun isForceId(): Boolean
```
Enforce id are required for all ConstraintLayout children to use ConstraintSet. default = true;
### isValidateOnParse
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun isValidateOnParse(): Boolean
```
If true perform validation checks when parsing ConstraintSets This will slow down parsing and should only be used for debugging
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | validate |
### load
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun load(context: Context!, parser: XmlPullParser!): Unit
```
Load a constraint set from a constraintSet.xml file
| Parameters |
|---|---|
| `context: https://developer.android.com/reference/android/content/Context.html!` | the context for the inflation |
| `parser: https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html!` | id of xml file in res/xml/ |
### load
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun load(context: Context!, resourceId: Int): Unit
```
Load a constraint set from a constraintSet.xml file. Note. Do NOT use this to load a layout file. It will fail silently as there is no efficient way to differentiate.
| Parameters |
|---|---|
| `context: https://developer.android.com/reference/android/content/Context.html!` | the context for the inflation |
| `resourceId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | id of xml file in res/xml/ |
### matchesLabels
```
fun matchesLabels(types: Array!): Boolean
```
Test if the list of strings matches labels defined on this constraintSet
| Parameters |
|---|---|
| `types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | list of types |
| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | true if all types are in the labels |
### parseColorAttributes
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun parseColorAttributes(set: ConstraintSet.Constraint!, attributes: String!): Unit
```
Parse color
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
| `attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### parseFloatAttributes
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun parseFloatAttributes(set: ConstraintSet.Constraint!, attributes: String!): Unit
```
Parse floats
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
| `attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### parseIntAttributes
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun parseIntAttributes(set: ConstraintSet.Constraint!, attributes: String!): Unit
```
Parse int
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
| `attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### parseStringAttributes
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun parseStringAttributes(set: ConstraintSet.Constraint!, attributes: String!): Unit
```
Parse string
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet.Constraint!` | |
| `attributes: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### readFallback
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun readFallback(constraintLayout: ConstraintLayout!): Unit
```
This will copy Constraints from the ConstraintLayout if it does not have parameters
| Parameters |
|---|---|
| `constraintLayout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | |
### readFallback
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun readFallback(set: ConstraintSet!): Unit
```
This will copy Constraints from the ConstraintSet
| Parameters |
|---|---|
| `set: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet!` | |
### removeAttribute
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun removeAttribute(attributeName: String!): Unit
```
Remove the attribute
| Parameters |
|---|---|
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### removeFromHorizontalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun removeFromHorizontalChain(viewId: Int): Unit
```
Removes a view from a horizontal chain. This assumes the view is connected to a horizontal chain. Its behaviour is undefined if not part of a horizontal chain.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the view to be removed |
### removeFromVerticalChain
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun removeFromVerticalChain(viewId: Int): Unit
```
Removes a view from a vertical chain. This assumes the view is connected to a vertical chain. Its behaviour is undefined if not part of a vertical chain.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the view to be removed |
### setAlpha
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setAlpha(viewId: Int, alpha: Float): Unit
```
Adjust the alpha of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the vertical |
| `alpha: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the alpha |
### setApplyElevation
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setApplyElevation(viewId: Int, apply: Boolean): Unit
```
set if elevation will be applied to the view. Elevation logic is based on style and animation. By default it is not used because it would lead to unexpected results.
| Parameters |
|---|---|
| `apply: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | true if this constraint set applies elevation to this view |
### setBarrierType
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setBarrierType(id: Int, type: Int): Unit
```
SEt tye type of barier
| Parameters |
|---|---|
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `type: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
### setColorValue
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setColorValue(viewId: Int, attributeName: String!, value: Int): Unit
```
Set the value of an attribute of type color
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
### setDimensionRatio
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setDimensionRatio(viewId: Int, ratio: String!): Unit
```
Constrains the views aspect ratio. For Example a HD screen is 16 by 9 = 16/(float)9 = 1.777f.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to constrain |
| `ratio: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | The ratio of the width to height (width / height) |
### setEditorAbsoluteX
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setEditorAbsoluteX(viewId: Int, position: Int): Unit
```
### setEditorAbsoluteY
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setEditorAbsoluteY(viewId: Int, position: Int): Unit
```
### setElevation
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setElevation(viewId: Int, elevation: Float): Unit
```
Adjust the elevation of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the elevation |
| `elevation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the elevation |
### setFloatValue
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setFloatValue(viewId: Int, attributeName: String!, value: Float): Unit
```
Set the value of an attribute of type float
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | |
### setForceId
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setForceId(forceId: Boolean): Unit
```
Enforce id are required for all ConstraintLayout children to use ConstraintSet. default = true;
| Parameters |
|---|---|
| `forceId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | |
### setGoneMargin
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setGoneMargin(viewId: Int, anchor: Int, value: Int): Unit
```
Sets the gone margin.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the margin on |
| `anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side to adjust the margin on |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The new value for the margin |
### setGuidelineBegin
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setGuidelineBegin(guidelineID: Int, margin: Int): Unit
```
Set the guideline's distance form the top or left edge.
| Parameters |
|---|---|
| `guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the guideline |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the distance to the top or left edge |
### setGuidelineEnd
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setGuidelineEnd(guidelineID: Int, margin: Int): Unit
```
Set a guideline's distance to end.
| Parameters |
|---|---|
| `guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the guideline |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the margin to the right or bottom side of container |
### setGuidelinePercent
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setGuidelinePercent(guidelineID: Int, ratio: Float): Unit
```
Set a Guideline's percent.
| Parameters |
|---|---|
| `guidelineID: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of the guideline |
| `ratio: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the ratio between the gap on the left and right 0.0 is top/left 0.5 is middle |
### setHorizontalBias
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setHorizontalBias(viewId: Int, bias: Float): Unit
```
Adjust the horizontal bias of the view (used with views constrained on left and right).
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the horizontal |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the new bias 0.5 is in the middle |
### setHorizontalChainStyle
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setHorizontalChainStyle(viewId: Int, chainStyle: Int): Unit
```
How the elements of the horizontal chain will be positioned. if the dimension behaviour is set to MATCH_CONSTRAINT. The possible values are:
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD()` -- the elements will be spread out
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD_INSIDE()` -- similar, but the endpoints of the chain will not be spread out
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_PACKED()` -- the elements of the chain will be packed together. The horizontal bias attribute of the child will then affect the positioning of the packed elements
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its HorizontalChainStyle |
| `chainStyle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the weight that we can use to distribute the horizontal space |
### setHorizontalWeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setHorizontalWeight(viewId: Int, weight: Float): Unit
```
The child's weight that we can use to distribute the available horizontal space in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its HorizontalWeight |
| `weight: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the weight that we can use to distribute the horizontal space |
### setIntValue
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setIntValue(viewId: Int, attributeName: String!, value: Int): Unit
```
Set the value of an attribute of type int
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
### setLayoutWrapBehavior
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setLayoutWrapBehavior(viewId: Int, behavior: Int): Unit
```
Sets the wrap behavior of the widget in the parent's wrap computation
### setMargin
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setMargin(viewId: Int, anchor: Int, value: Int): Unit
```
Sets the margin.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the margin on |
| `anchor: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The side to adjust the margin on |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | The new value for the margin |
### setReferencedIds
```
fun setReferencedIds(id: Int, referenced: IntArray!): Unit
```
sets the reference id's of a barrier.
| Parameters |
|---|---|
| `id: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `referenced: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int-array/index.html!` | |
### setRotation
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setRotation(viewId: Int, rotation: Float): Unit
```
Adjust the post-layout rotation about the Z axis of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust th Z rotation |
| `rotation: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the rotation about the X axis |
### setRotationX
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setRotationX(viewId: Int, rotationX: Float): Unit
```
Adjust the post-layout rotation about the X axis of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust th X rotation |
| `rotationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the rotation about the X axis |
### setRotationY
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setRotationY(viewId: Int, rotationY: Float): Unit
```
Adjust the post-layout rotation about the Y axis of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the Y rotation |
| `rotationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the rotationY |
### setScaleX
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setScaleX(viewId: Int, scaleX: Float): Unit
```
Adjust the post-layout scale in X of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the scale in X |
| `scaleX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the scale in X |
### setScaleY
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setScaleY(viewId: Int, scaleY: Float): Unit
```
Adjust the post-layout scale in Y of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the scale in Y |
| `scaleY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the scale in Y |
### setStateLabels
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setStateLabels(types: String!): Unit
```
Set the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet
| Parameters |
|---|---|
| `types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | a comer separated array of strings. |
### setStateLabelsList
```
fun setStateLabelsList(types: Array!): Unit
```
Set the types associated with this ConstraintSet The types mechanism allows you to tag the constraint set with a series of string to define properties of a ConstraintSet
| Parameters |
|---|---|
| `types: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html!` | a comer separated array of strings. |
### setStringValue
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setStringValue(viewId: Int, attributeName: String!, value: String!): Unit
```
Set the value of an attribute of type string
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| `attributeName: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
| `value: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | |
### setTransformPivot
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTransformPivot(
viewId: Int,
transformPivotX: Float,
transformPivotY: Float
): Unit
```
Set X,Y location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. Note: once an actual View has had its pivot set it cannot be cleared.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the transforms pivot point |
| `transformPivotX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | X location of the pivot point. |
| `transformPivotY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | Y location of the pivot point. |
### setTransformPivotX
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTransformPivotX(viewId: Int, transformPivotX: Float): Unit
```
Set X location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. Note: once an actual View has had its pivot set it cannot be cleared.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the transforms pivot point about X |
| `transformPivotX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | X location of the pivot point. |
### setTransformPivotY
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTransformPivotY(viewId: Int, transformPivotY: Float): Unit
```
Set Y location of the pivot point around which the view will rotate and scale. use Float.NaN to clear the pivot value. Note: once an actual View has had its pivot set it cannot be cleared.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the transforms pivot point about Y |
| `transformPivotY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | Y location of the pivot point. |
### setTranslation
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTranslation(viewId: Int, translationX: Float, translationY: Float): Unit
```
Adjust the post-layout translation of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its translation in X \&Y |
| `translationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the translation in X |
| `translationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the translation in Y |
### setTranslationX
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTranslationX(viewId: Int, translationX: Float): Unit
```
Adjust the post-layout X translation of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to translate in X |
| `translationX: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the translation in X |
### setTranslationY
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTranslationY(viewId: Int, translationY: Float): Unit
```
Adjust the post-layout Y translation of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to to translate in Y |
| `translationY: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the translation in Y |
### setTranslationZ
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setTranslationZ(viewId: Int, translationZ: Float): Unit
```
Adjust the translation in Z of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust |
| `translationZ: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the translationZ |
### setValidateOnParse
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setValidateOnParse(validate: Boolean): Unit
```
If true perform validation checks when parsing ConstraintSets This will slow down parsing and should only be used for debugging
| Parameters |
|---|---|
| `validate: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | |
### setVerticalBias
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setVerticalBias(viewId: Int, bias: Float): Unit
```
Adjust the vertical bias of the view (used with views constrained on left and right).
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the vertical |
| `bias: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the new bias 0.5 is in the middle |
### setVerticalChainStyle
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setVerticalChainStyle(viewId: Int, chainStyle: Int): Unit
```
How the elements of the vertical chain will be positioned. in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD()` -- the elements will be spread out
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_SPREAD_INSIDE()` -- similar, but the endpoints of the chain will not be spread out
- `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#CHAIN_PACKED()` -- the elements of the chain will be packed together. The vertical bias attribute of the child will then affect the positioning of the packed elements
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its VerticalChainStyle |
| `chainStyle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the weight that we can use to distribute the horizontal space |
### setVerticalWeight
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setVerticalWeight(viewId: Int, weight: Float): Unit
```
The child's weight that we can use to distribute the available vertical space in a chain, if the dimension behaviour is set to MATCH_CONSTRAINT
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust its VerticalWeight |
| `weight: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the weight that we can use to distribute the vertical space |
### setVisibility
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setVisibility(viewId: Int, visibility: Int): Unit
```
Adjust the visibility of a view.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view to adjust the vertical |
| `visibility: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | the visibility |
### setVisibilityMode
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun setVisibilityMode(viewId: Int, visibilityMode: Int): Unit
```
ConstraintSet will not setVisibility. `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_IGNORE()` or `https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintSet#VISIBILITY_MODE_NORMAL()`.
| Parameters |
|---|---|
| `viewId: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | ID of view |
| `visibilityMode: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
### writeState
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
fun writeState(writer: Writer!, layout: ConstraintLayout!, flags: Int): Unit
```
Write the state to a Writer
| Parameters |
|---|---|
| `writer: https://developer.android.com/reference/java/io/Writer.html!` | |
| `layout: https://developer.android.com/reference/kotlin/androidx/constraintlayout/widget/ConstraintLayout!` | |
| `flags: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | |
| Throws |
|---|---|
| `https://developer.android.com/reference/java/io/IOException.html` | |
## Public properties
### derivedState
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
val derivedState: String!
```
### mIdString
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
val mIdString: String!
```
### mRotate
Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)
```
val mRotate: Int
```