ChangeBounds

Kotlin |Java

open class ChangeBounds : Transition

kotlin.Any
↳	androidx.transition.Transition
	↳	androidx.transition.ChangeBounds

This transition captures the layout bounds of target views before and after the scene change and animates those changes during the transition.

A ChangeBounds transition can be described in a resource file by using the tag changeBounds, along with the other standard attributes of Transition.

Summary

Inherited constants

From class Transition

`Int`	`MATCH_ID` With `setMatchOrder(int...)`, chooses to match by `android.view.View#getId()`. Negative IDs will not be matched.
`Int`	`MATCH_INSTANCE` With `setMatchOrder(int...)`, chooses to match by View instance.
`Int`	`MATCH_ITEM_ID` With `setMatchOrder(int...)`, chooses to match by the `android.widget.Adapter` item id. When `android.widget.Adapter#hasStableIds()` returns false, no match will be made for items.
`Int`	`MATCH_NAME` With `setMatchOrder(int...)`, chooses to match by `android.view.View#getTransitionName()`. Null names will not be matched.

Public constructors
`<init>()`
`<init>(@NonNull context: Context, @NonNull attrs: AttributeSet)`

Public methods
open Unit	`captureEndValues(@NonNull transitionValues: TransitionValues)`
open Unit	`captureStartValues(@NonNull transitionValues: TransitionValues)`
open Animator?	`createAnimator(@NonNull sceneRoot: ViewGroup, @Nullable startValues: TransitionValues?, @Nullable endValues: TransitionValues?)`
open Boolean	`getResizeClip()` Returns true when the ChangeBounds will resize by changing the clip bounds during the view animation or false when bounds are changed.
open Array<String!>	`getTransitionProperties()`
open Unit	`setResizeClip(resizeClip: Boolean)` When `resizeClip` is true, ChangeBounds resizes the view using the clipBounds instead of changing the dimensions of the view during the animation.

Inherited functions

From class Transition

`Transition`	`addListener(@NonNull listener: Transition.TransitionListener)` Adds a listener to the set of listeners that are sent events through the life of an animation, such as start, repeat, and end.
`Transition`	`addTarget(@NonNull target: View)` Sets the target view instances that this Transition is interested in animating. By default, there are no targets, and a Transition will listen for changes on every view in the hierarchy below the sceneRoot of the Scene being transitioned into. Setting targets constrains the Transition to only listen for, and act on, these views. All other views will be ignored. The target list is like the `targetId` list except this list specifies the actual View instances, not the ids of the views. This is an important distinction when scene changes involve view hierarchies which have been inflated separately; different views may share the same id but not actually be the same instance. If the transition should treat those views as the same, then `addTarget(int)` should be used instead of `addTarget(View)`. If, on the other hand, scene changes involve changes all within the same view hierarchy, among views which do not necessarily have ids set on them, then the target list of views may be more convenient.
`Transition`	`addTarget(@IdRes targetId: Int)` Adds the id of a target view that this Transition is interested in animating. By default, there are no targetIds, and a Transition will listen for changes on every view in the hierarchy below the sceneRoot of the Scene being transitioned into. Setting targetIds constrains the Transition to only listen for, and act on, views with these IDs. Views with different IDs, or no IDs whatsoever, will be ignored. Note that using ids to specify targets implies that ids should be unique within the view hierarchy underneath the scene root.
`Transition`	`addTarget(@NonNull targetName: String)` Adds the transitionName of a target view that this Transition is interested in animating. By default, there are no targetNames, and a Transition will listen for changes on every view in the hierarchy below the sceneRoot of the Scene being transitioned into. Setting targetNames constrains the Transition to only listen for, and act on, views with these transitionNames. Views with different transitionNames, or no transitionName whatsoever, will be ignored. Note that transitionNames should be unique within the view hierarchy.
`Transition`	`addTarget(@NonNull targetType: Class<*>)` Adds the Class of a target view that this Transition is interested in animating. By default, there are no targetTypes, and a Transition will listen for changes on every view in the hierarchy below the sceneRoot of the Scene being transitioned into. Setting targetTypes constrains the Transition to only listen for, and act on, views with these classes. Views with different classes will be ignored. Note that any View that can be cast to targetType will be included, so if targetType is `View.class`, all Views will be included.
`Transition`	`clone()`
`Transition`	`excludeChildren(@NonNull target: View, exclude: Boolean)` Whether to add the children of given target to the list of target children to exclude from this transition. The `exclude` parameter specifies whether the target should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeChildren(@IdRes targetId: Int, exclude: Boolean)` Whether to add the children of the given id to the list of targets to exclude from this transition. The `exclude` parameter specifies whether the children of the target should be added to or removed from the excluded list. Excluding children in this way provides a simple mechanism for excluding all children of specific targets, rather than individually excluding each child individually. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeChildren(@NonNull type: Class<*>, exclude: Boolean)` Whether to add the given type to the list of types whose children should be excluded from this transition. The `exclude` parameter specifies whether the target type should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeTarget(@NonNull target: View, exclude: Boolean)` Whether to add the given target to the list of targets to exclude from this transition. The `exclude` parameter specifies whether the target should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeTarget(@IdRes targetId: Int, exclude: Boolean)` Whether to add the given id to the list of target ids to exclude from this transition. The `exclude` parameter specifies whether the target should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeTarget(@NonNull targetName: String, exclude: Boolean)` Whether to add the given transitionName to the list of target transitionNames to exclude from this transition. The `exclude` parameter specifies whether the target should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded by their id, their instance reference, their transitionName, or by the Class of that view (eg, `Spinner`).
`Transition`	`excludeTarget(@NonNull type: Class<*>, exclude: Boolean)` Whether to add the given type to the list of types to exclude from this transition. The `exclude` parameter specifies whether the target type should be added to or removed from the excluded list. Excluding targets is a general mechanism for allowing transitions to run on a view hierarchy while skipping target views that should not be part of the transition. For example, you may want to avoid animating children of a specific ListView or Spinner. Views can be excluded either by their id, or by their instance reference, or by the Class of that view (eg, `Spinner`).
`Long`	`getDuration()` Returns the duration set on this transition. If no duration has been set, the returned value will be negative, indicating that resulting animators will retain their own durations.
`Rect?`	`getEpicenter()` Returns the epicenter as specified by the `android.transition.Transition.EpicenterCallback` or null if no callback exists.
`Transition.EpicenterCallback?`	`getEpicenterCallback()` Returns the callback used to find the epicenter of the Transition. Transitions like `android.transition.Explode` use a point or Rect to orient the direction of travel. This is called the epicenter of the Transition and is typically centered on a touched View. The `android.transition.Transition.EpicenterCallback` allows a Transition to dynamically retrieve the epicenter during a Transition.
`TimeInterpolator?`	`getInterpolator()` Returns the interpolator set on this transition. If no interpolator has been set, the returned value will be null, indicating that resulting animators will retain their own interpolators.
`String`	`getName()` Returns the name of this Transition. This name is used internally to distinguish between different transitions to determine when interrupting transitions overlap. For example, a ChangeBounds running on the same target view as another ChangeBounds should determine whether the old transition is animating to different end values and should be canceled in favor of the new transition. By default, a Transition's name is simply the value of `Class#getName()`, but subclasses are free to override and return something different.
`PathMotion`	`getPathMotion()` Returns the algorithm object used to interpolate along two dimensions. This is typically used to determine the View motion between two points.
`TransitionPropagation?`