# ArcLayout.LayoutParams
# ArcLayout.LayoutParams
Artifact:[androidx.wear:wear](https://developer.android.com/jetpack/androidx/releases/wear)
[View Source](https://cs.android.com/search?q=file:androidx/wear/widget/ArcLayout.java+class:androidx.wear.widget.ArcLayout.LayoutParams)
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
*** ** * ** ***
Kotlin\|[Java](https://developer.android.com/reference/androidx/wear/widget/ArcLayout.LayoutParams "View this page in Java")
```
class ArcLayout.LayoutParams : ViewGroup.MarginLayoutParams
```
|---|---|---|-------------------------------------------------------------------------------------------------------------------------------------------|
| [kotlin.Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) ||||
| ↳ | [android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |||
| | ↳ | [android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) ||
| | | ↳ | [androidx.wear.widget.ArcLayout.LayoutParams](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams) |
*** ** * ** ***
Layout parameters for a widget added to an arc. This allows each element to specify whether or not it should be rotated(around the center of the child) when drawn inside the arc. For example, when the child is put at the center-bottom of the arc, whether the parent layout is responsible to rotate it 180 degree to draw it upside down.
Note that the`rotate`parameter is ignored when drawing "Fullscreen" elements.
## Summary
| ### Constants |
|-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [VERTICAL_ALIGN_CENTER](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#VERTICAL_ALIGN_CENTER())` = 1` Align to the center of the parent ArcLayout. |
| `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [VERTICAL_ALIGN_INNER](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#VERTICAL_ALIGN_INNER())` = 2` Align to the inner edge of the parent ArcLayout. |
| `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [VERTICAL_ALIGN_OUTER](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#VERTICAL_ALIGN_OUTER())` = 0` Align to the outer edge of the parent ArcLayout. |
| ### Public constructors |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#LayoutParams(android.view.ViewGroup.LayoutParams))`(source: `[ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html)`)` Copy constructor |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#LayoutParams(android.content.Context,android.util.AttributeSet))`(context: `[Context](https://developer.android.com/reference/android/content/Context.html)`, attrs: `[AttributeSet](https://developer.android.com/reference/android/util/AttributeSet.html)`?)` Creates a new set of layout parameters. |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#LayoutParams(int,int))`(width: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, height: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` Creates a new set of layout parameters with specified width and height |
| ### Public functions |
|-------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getVerticalAlignment](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#getVerticalAlignment())`()` Gets how the widget is positioned vertically in the ArcLayout. |
| [Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html) | [getWeight](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#getWeight())`()` Returns the weight used for computing expansion. |
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isRotated](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#isRotated())`()` Gets whether the widget shall be rotated by the ArcLayout container corresponding to its layout position angle |
| [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setRotated](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#setRotated(boolean))`(rotated: `[Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)`)` Sets whether the widget shall be rotated by the ArcLayout container corresponding to its layout position angle |
| [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setVerticalAlignment](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#setVerticalAlignment(int))`(verticalAlignment: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` Sets how the widget is positioned vertically in the ArcLayout. |
| [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setWeight](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout.LayoutParams#setWeight(float))`(weight: `[Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)`)` Indicates how much of the extra space in the ArcLayout will be allocated to the view associated with these LayoutParams up to the limit specified by[setMaxAngleDegrees](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout#setMaxAngleDegrees(float)). |
| ### Inherited Constants |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------| | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [FILL_PARENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#FILL_PARENT())` = -1` **This property is deprecated.** | | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [MATCH_PARENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#MATCH_PARENT())` = -1` | | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [WRAP_CONTENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#WRAP_CONTENT())` = -2` | |
| ### Inherited functions |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setBaseAttributes](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#setBaseAttributes(android.content.res.TypedArray, int, int))`(a: `[TypedArray](https://developer.android.com/reference/android/content/res/TypedArray.html)`!, widthAttr: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, heightAttr: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | |
| From[android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) |-------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getLayoutDirection())`()` | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getMarginEnd](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getMarginEnd())`()` | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getMarginStart](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getMarginStart())`()` | | [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isMarginRelative](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#isMarginRelative())`()` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [resolveLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#resolveLayoutDirection(int))`(layoutDirection: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setLayoutDirection(int))`(layoutDirection: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMarginEnd](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMarginEnd(int))`(end: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMarginStart](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMarginStart(int))`(start: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMargins](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMargins(int, int, int, int))`(left: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, top: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, right: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, bottom: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | |
| ### Inherited properties |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [height](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#height()) | | [LayoutAnimationController.AnimationParameters](https://developer.android.com/reference/android/view/animation/LayoutAnimationController.AnimationParameters.html)`!` | [layoutAnimationParameters](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#layoutAnimationParameters()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [width](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#width()) | |
| From[android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) |-----------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [bottomMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#bottomMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [leftMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#leftMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [rightMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#rightMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [topMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#topMargin()) | |
## Constants
### VERTICAL_ALIGN_CENTER
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
const val VERTICAL_ALIGN_CENTER = 1: Int
```
Align to the center of the parent ArcLayout.
### VERTICAL_ALIGN_INNER
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
const val VERTICAL_ALIGN_INNER = 2: Int
```
Align to the inner edge of the parent ArcLayout.
### VERTICAL_ALIGN_OUTER
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
const val VERTICAL_ALIGN_OUTER = 0: Int
```
Align to the outer edge of the parent ArcLayout.
## Public constructors
### LayoutParams
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
LayoutParams(source: ViewGroup.LayoutParams)
```
Copy constructor
### LayoutParams
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
LayoutParams(context: Context, attrs: AttributeSet?)
```
Creates a new set of layout parameters. The values are extracted from the supplied attributes set and context.
| Parameters |
|----------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
| `context: `[Context](https://developer.android.com/reference/android/content/Context.html) | The Context the ArcLayout is running in, through which it can access the current theme, resources, etc. |
| `attrs: `[AttributeSet](https://developer.android.com/reference/android/util/AttributeSet.html)`?` | The set of attributes from which to extract the layout parameters' values |
### LayoutParams
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
LayoutParams(width: Int, height: Int)
```
Creates a new set of layout parameters with specified width and height
| Parameters |
|---------------------------------------------------------------------------------------|-------------------------------------------------------------------------|
| `width: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | The width, either WRAP_CONTENT, MATCH_PARENT or a fixed size in pixels |
| `height: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | The height, either WRAP_CONTENT, MATCH_PARENT or a fixed size in pixels |
## Public functions
### getVerticalAlignment
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
fun getVerticalAlignment(): Int
```
Gets how the widget is positioned vertically in the ArcLayout.
### getWeight
Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/wear#1.3.0)
```
fun getWeight(): Float
```
Returns the weight used for computing expansion.
### isRotated
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
fun isRotated(): Boolean
```
Gets whether the widget shall be rotated by the ArcLayout container corresponding to its layout position angle
### setRotated
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
fun setRotated(rotated: Boolean): Unit
```
Sets whether the widget shall be rotated by the ArcLayout container corresponding to its layout position angle
### setVerticalAlignment
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/wear#1.2.0)
```
fun setVerticalAlignment(verticalAlignment: Int): Unit
```
Sets how the widget is positioned vertically in the ArcLayout.
| Parameters |
|--------------------------------------------------------------------------------------------------|---------------------------------------------------|
| `verticalAlignment: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | align the widget to outer, inner edges or center. |
### setWeight
Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/wear#1.3.0)
```
fun setWeight(weight: Float): Unit
```
Indicates how much of the extra space in the ArcLayout will be allocated to the view associated with these LayoutParams up to the limit specified by[setMaxAngleDegrees](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout#setMaxAngleDegrees(float)). Specify 0 if the view should not be stretched. Otherwise the extra pixels will be pro-rated among all views whose weight is greater than 0. Note non zero weights are only supported for Views that implement[.Widget](https://developer.android.com/reference/kotlin/androidx/wear/widget/ArcLayout).