# ConstraintSet.Constraint

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.Constraint) Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

*** ** * ** ***


```
public class ConstraintSet.Constraint
```

<br />

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## Summary

| ### Public fields |
|---|---|
| `final https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Layout` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#layout()` |
| `https://developer.android.com/reference/java/util/HashMap.html<https://developer.android.com/reference/java/lang/String.html, https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintAttribute>` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#mCustomConstraints()` |
| `final https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Motion` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#motion()` |
| `final https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.PropertySet` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#propertySet()` |
| `final https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Transform` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#transform()` |

| ### Public constructors |
|---|
| `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#Constraint()()` |

| ### Public methods |
|---|---|
| `void` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#applyDelta(androidx.constraintlayout.widget.ConstraintSet.Constraint)(https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint c)` Apply a delta to a constraint |
| `void` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#applyTo(androidx.constraintlayout.widget.ConstraintLayout.LayoutParams)(https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams param)` apply ConstraintSet to the layout params |
| `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#clone()()` Return a copy of the Constraint |
| `void` | `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint#printDelta(java.lang.String)(https://developer.android.com/reference/java/lang/String.html tag)` Apply a delta file |

## Public fields

### layout

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public final ConstraintSet.Layout layout
```

### mCustomConstraints

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public HashMap<String, ConstraintAttribute> mCustomConstraints
```

### motion

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public final ConstraintSet.Motion motion
```

### propertySet

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public final ConstraintSet.PropertySet propertySet
```

### transform

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public final ConstraintSet.Transform transform
```

## Public constructors

### Constraint

Added in 2.2.2

```
public Constraint()
```

## Public methods

### applyDelta

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public void applyDelta(ConstraintSet.Constraint c)
```

Apply a delta to a constraint

| Parameters |
|---|---|
| `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint c` |   |

### applyTo

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public void applyTo(ConstraintLayout.LayoutParams param)
```

apply ConstraintSet to the layout params

| Parameters |
|---|---|
| `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintLayout.LayoutParams param` |   |

### clone

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public ConstraintSet.Constraint clone()
```

Return a copy of the Constraint

| Returns |
|---|---|
| `https://developer.android.com/reference/androidx/constraintlayout/widget/ConstraintSet.Constraint` |   |

### printDelta

Added in [2.2.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#2.2.2)

```
public void printDelta(String tag)
```

Apply a delta file

| Parameters |
|---|---|
| `https://developer.android.com/reference/java/lang/String.html tag` |   |