animateRectAsState
Common
```kotlin
@Composable
public fun animateRectAsState(
targetValue: Rect,
animationSpec: AnimationSpec = rectDefaultSpring,
label: String = "RectAnimation",
finishedListener: ((Rect) -> Unit)? = null,
): State
```
Fire-and-forget animation function for [Rect](/jetpack-compose/androidx.compose.ui/ui-geometry/classes/Rect). This Composable function is overloaded for
different parameter types such as [Dp](/jetpack-compose/androidx.compose.ui/ui-unit/classes/Dp), [Color][androidx.compose.ui.graphics.Color], [Offset](/jetpack-compose/androidx.compose.ui/ui-geometry/classes/Offset),
etc. When the provided `targetValue` is changed, the animation will run automatically. If there
is already an animation in-flight when `targetValue` changes, the on-going animation will adjust
course to animate towards the new target value.
[animateRectAsState](/jetpack-compose/androidx.compose.animation/animation-core/composable-functions/animateRectAsState) returns a [State](/jetpack-compose/androidx.compose.runtime/runtime/interfaces/State) object. The value of the state object will continuously be
updated by the animation until the animation finishes.
Note, [animateRectAsState](/jetpack-compose/androidx.compose.animation/animation-core/composable-functions/animateRectAsState) cannot be canceled/stopped without removing this composable function
from the tree. See [Animatable](/jetpack-compose/androidx.compose.animation/animation-core/classes/Animatable) for cancelable animations.
val bounds: Rect by animateRectAsState( if (enabled) Rect(0f, 0f, 100f, 100f) else Rect(8f, 8f,
80f, 80f))
#### Parameters
| | |
| --- | --- |
| targetValue | Target value of the animation |
| animationSpec | The animation that will be used to change the value through time. Physics animation will be used by default. |
| label | An optional label to differentiate from other animations in Android Studio. |
| finishedListener | An optional end listener to get notified when the animation is finished. |
#### Returns
| | |
| --- | --- |
| | A [State](/jetpack-compose/androidx.compose.runtime/runtime/interfaces/State) object, the value of which is updated by animation. |
Common
> **Deprecated** animate*AsState APIs now have a new label parameter added.
animateRectAsState
```kotlin
@Composable
public fun animateRectAsState(
targetValue: Rect,
animationSpec: AnimationSpec = rectDefaultSpring,
finishedListener: ((Rect) -> Unit)? = null,
): State
```