Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [XML Attrs](https://developer.android.com/reference/android/transition/ChangeBounds#lattrs) \| [Inherited XML Attrs](https://developer.android.com/reference/android/transition/ChangeBounds#inhattrs) \| [Inherited Constants](https://developer.android.com/reference/android/transition/ChangeBounds#inhconstants) \| [Ctors](https://developer.android.com/reference/android/transition/ChangeBounds#pubctors) \| [Methods](https://developer.android.com/reference/android/transition/ChangeBounds#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/transition/ChangeBounds#inhmethods)

# ChangeBounds

*** ** * ** ***


`
public


class
ChangeBounds
`


`


`

`

extends https://developer.android.com/reference/android/transition/Transition


`

`


`

|---|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) |||
| ↳ | [android.transition.Transition](https://developer.android.com/reference/android/transition/Transition) ||
|   | ↳ | android.transition.ChangeBounds |

<br />

*** ** * ** ***

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`, using its attributes of
`https://developer.android.com/reference/android/R.styleable#ChangeBounds` along with the other standard
attributes of `https://developer.android.com/reference/android/R.styleable#Transition`.

<br />

## Summary

| ### XML attributes ||
|---|---|
| [`android:resizeClip`](https://developer.android.com/reference/android/transition/ChangeBounds#attr_android:resizeClip) | Resize the view by adjusting the clipBounds rather than changing the dimensions of the view itself. |

| ### Inherited XML attributes |
|---|---|
| From class `https://developer.android.com/reference/android/transition/Transition` |---|---| | [`android:duration`](https://developer.android.com/reference/android/transition/Transition#attr_android:duration) | Amount of time (in milliseconds) that the transition should run. | | [`android:interpolator`](https://developer.android.com/reference/android/transition/Transition#attr_android:interpolator) | Interpolator to be used in the animations spawned by this transition. | | [`android:startDelay`](https://developer.android.com/reference/android/transition/Transition#attr_android:startDelay) | Delay in milliseconds before the transition starts. | ||

| ### Inherited constants |
|---|
| From class `https://developer.android.com/reference/android/transition/Transition` |---|---| | `int` | `https://developer.android.com/reference/android/transition/Transition#MATCH_ID` With `https://developer.android.com/reference/android/transition/Transition#setMatchOrder(int[])`, chooses to match by `https://developer.android.com/reference/android/view/View#getId()`. | | `int` | `https://developer.android.com/reference/android/transition/Transition#MATCH_INSTANCE` With `https://developer.android.com/reference/android/transition/Transition#setMatchOrder(int[])`, chooses to match by View instance. | | `int` | `https://developer.android.com/reference/android/transition/Transition#MATCH_ITEM_ID` With `https://developer.android.com/reference/android/transition/Transition#setMatchOrder(int[])`, chooses to match by the `https://developer.android.com/reference/android/widget/Adapter` item id. | | `int` | `https://developer.android.com/reference/android/transition/Transition#MATCH_NAME` With `https://developer.android.com/reference/android/transition/Transition#setMatchOrder(int[])`, chooses to match by `https://developer.android.com/reference/android/view/View#getTransitionName()`. | |

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/transition/ChangeBounds#ChangeBounds()() ` |
| ` https://developer.android.com/reference/android/transition/ChangeBounds#ChangeBounds(android.content.Context,%20android.util.AttributeSet)(https://developer.android.com/reference/android/content/Context context, https://developer.android.com/reference/android/util/AttributeSet attrs) ` |

| ### Public methods ||
|---|---|
| ` void` | ` https://developer.android.com/reference/android/transition/ChangeBounds#captureEndValues(android.transition.TransitionValues)(https://developer.android.com/reference/android/transition/TransitionValues transitionValues) ` Captures the values in the end scene for the properties that this transition monitors. |
| ` void` | ` https://developer.android.com/reference/android/transition/ChangeBounds#captureStartValues(android.transition.TransitionValues)(https://developer.android.com/reference/android/transition/TransitionValues transitionValues) ` Captures the values in the start scene for the properties that this transition monitors. |
| ` https://developer.android.com/reference/android/animation/Animator` | ` https://developer.android.com/reference/android/transition/ChangeBounds#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)(https://developer.android.com/reference/android/view/ViewGroup sceneRoot, https://developer.android.com/reference/android/transition/TransitionValues startValues, https://developer.android.com/reference/android/transition/TransitionValues endValues) ` This method creates an animation that will be run for this transition given the information in the startValues and endValues structures captured earlier for the start and end scenes. |
| ` boolean` | ` https://developer.android.com/reference/android/transition/ChangeBounds#getResizeClip()() ` Returns true when the ChangeBounds will resize by changing the clip bounds during the view animation or false when bounds are changed. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/transition/ChangeBounds#getTransitionProperties()() ` Returns the set of property names used stored in the `https://developer.android.com/reference/android/transition/TransitionValues` object passed into `https://developer.android.com/reference/android/transition/Transition#captureStartValues(android.transition.TransitionValues)` that this transition cares about for the purposes of canceling overlapping animations. |
| ` void` | ` https://developer.android.com/reference/android/transition/ChangeBounds#setReparent(boolean)(boolean reparent) ` *This method was deprecated in API level 21. Use `https://developer.android.com/reference/android/transition/ChangeTransform` to handle transitions between different parents.* |
| ` void` | ` https://developer.android.com/reference/android/transition/ChangeBounds#setResizeClip(boolean)(boolean resizeClip) ` When `resizeClip` is true, ChangeBounds resizes the view using the clipBounds instead of changing the dimensions of the view during the animation. |

| ### Inherited methods |
|---|---|
| From class ` https://developer.android.com/reference/android/transition/Transition ` |---|---| | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#addListener(android.transition.Transition.TransitionListener)(https://developer.android.com/reference/android/transition/Transition.TransitionListener listener) ` Adds a listener to the set of listeners that are sent events through the life of an animation, such as start, repeat, and end. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#addTarget(android.view.View)(https://developer.android.com/reference/android/view/View target) ` Sets the target view instances that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#addTarget(int)(int targetId) ` Adds the id of a target view that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#addTarget(java.lang.Class)(https://developer.android.com/reference/java/lang/Class<T> targetType) ` Adds the Class of a target view that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#addTarget(java.lang.String)(https://developer.android.com/reference/java/lang/String targetName) ` Adds the transitionName of a target view that this Transition is interested in animating. | | ` boolean` | ` https://developer.android.com/reference/android/transition/Transition#canRemoveViews()() ` | | ` abstract void` | ` https://developer.android.com/reference/android/transition/Transition#captureEndValues(android.transition.TransitionValues)(https://developer.android.com/reference/android/transition/TransitionValues transitionValues) ` Captures the values in the end scene for the properties that this transition monitors. | | ` abstract void` | ` https://developer.android.com/reference/android/transition/Transition#captureStartValues(android.transition.TransitionValues)(https://developer.android.com/reference/android/transition/TransitionValues transitionValues) ` Captures the values in the start scene for the properties that this transition monitors. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#clone()() ` Creates and returns a copy of this object. | | ` https://developer.android.com/reference/android/animation/Animator` | ` https://developer.android.com/reference/android/transition/Transition#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)(https://developer.android.com/reference/android/view/ViewGroup sceneRoot, https://developer.android.com/reference/android/transition/TransitionValues startValues, https://developer.android.com/reference/android/transition/TransitionValues endValues) ` This method creates an animation that will be run for this transition given the information in the startValues and endValues structures captured earlier for the start and end scenes. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeChildren(int,%20boolean)(int targetId, boolean exclude) ` Whether to add the children of the given id to the list of targets to exclude from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeChildren(java.lang.Class,%20boolean)(https://developer.android.com/reference/java/lang/Class<T> type, boolean exclude) ` Whether to add the given type to the list of types whose children should be excluded from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeChildren(android.view.View,%20boolean)(https://developer.android.com/reference/android/view/View target, boolean exclude) ` Whether to add the children of given target to the list of target children to exclude from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeTarget(android.view.View,%20boolean)(https://developer.android.com/reference/android/view/View target, boolean exclude) ` Whether to add the given target to the list of targets to exclude from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeTarget(java.lang.Class,%20boolean)(https://developer.android.com/reference/java/lang/Class<T> type, boolean exclude) ` Whether to add the given type to the list of types to exclude from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeTarget(java.lang.String,%20boolean)(https://developer.android.com/reference/java/lang/String targetName, boolean exclude) ` Whether to add the given transitionName to the list of target transitionNames to exclude from this transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#excludeTarget(int,%20boolean)(int targetId, boolean exclude) ` Whether to add the given id to the list of target ids to exclude from this transition. | | ` long` | ` https://developer.android.com/reference/android/transition/Transition#getDuration()() ` Returns the duration set on this transition. | | ` https://developer.android.com/reference/android/graphics/Rect` | ` https://developer.android.com/reference/android/transition/Transition#getEpicenter()() ` Returns the epicenter as specified by the `https://developer.android.com/reference/android/transition/Transition.EpicenterCallback` or null if no callback exists. | | ` https://developer.android.com/reference/android/transition/Transition.EpicenterCallback` | ` https://developer.android.com/reference/android/transition/Transition#getEpicenterCallback()() ` Returns the callback used to find the epicenter of the Transition. | | ` https://developer.android.com/reference/android/animation/TimeInterpolator` | ` https://developer.android.com/reference/android/transition/Transition#getInterpolator()() ` Returns the interpolator set on this transition. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/transition/Transition#getName()() ` Returns the name of this Transition. | | ` https://developer.android.com/reference/android/transition/PathMotion` | ` https://developer.android.com/reference/android/transition/Transition#getPathMotion()() ` Returns the algorithm object used to interpolate along two dimensions. | | ` https://developer.android.com/reference/android/transition/TransitionPropagation` | ` https://developer.android.com/reference/android/transition/Transition#getPropagation()() ` Returns the `https://developer.android.com/reference/android/transition/TransitionPropagation` used to calculate Animator start delays. | | ` long` | ` https://developer.android.com/reference/android/transition/Transition#getStartDelay()() ` Returns the startDelay set on this transition. | | ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/java/lang/Integer>` | ` https://developer.android.com/reference/android/transition/Transition#getTargetIds()() ` Returns the list of target IDs that this transition limits itself to tracking and animating. | | ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/java/lang/String>` | ` https://developer.android.com/reference/android/transition/Transition#getTargetNames()() ` Returns the list of target transitionNames that this transition limits itself to tracking and animating. | | ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/java/lang/Class<T>>` | ` https://developer.android.com/reference/android/transition/Transition#getTargetTypes()() ` Returns the list of target transitionNames that this transition limits itself to tracking and animating. | | ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/view/View>` | ` https://developer.android.com/reference/android/transition/Transition#getTargets()() ` Returns the list of target views that this transition limits itself to tracking and animating. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/transition/Transition#getTransitionProperties()() ` Returns the set of property names used stored in the `https://developer.android.com/reference/android/transition/TransitionValues` object passed into `https://developer.android.com/reference/android/transition/Transition#captureStartValues(android.transition.TransitionValues)` that this transition cares about for the purposes of canceling overlapping animations. | | ` https://developer.android.com/reference/android/transition/TransitionValues` | ` https://developer.android.com/reference/android/transition/Transition#getTransitionValues(android.view.View,%20boolean)(https://developer.android.com/reference/android/view/View view, boolean start) ` This method can be called by transitions to get the TransitionValues for any particular view during the transition-playing process. | | ` boolean` | ` https://developer.android.com/reference/android/transition/Transition#isTransitionRequired(android.transition.TransitionValues,%20android.transition.TransitionValues)(https://developer.android.com/reference/android/transition/TransitionValues startValues, https://developer.android.com/reference/android/transition/TransitionValues endValues) ` Returns whether or not the transition should create an Animator, based on the values captured during `https://developer.android.com/reference/android/transition/Transition#captureStartValues(android.transition.TransitionValues)` and `https://developer.android.com/reference/android/transition/Transition#captureEndValues(android.transition.TransitionValues)`. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#removeListener(android.transition.Transition.TransitionListener)(https://developer.android.com/reference/android/transition/Transition.TransitionListener listener) ` Removes a listener from the set listening to this animation. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#removeTarget(int)(int targetId) ` Removes the given targetId from the list of ids that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#removeTarget(android.view.View)(https://developer.android.com/reference/android/view/View target) ` Removes the given target from the list of targets that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#removeTarget(java.lang.String)(https://developer.android.com/reference/java/lang/String targetName) ` Removes the given targetName from the list of transitionNames that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#removeTarget(java.lang.Class)(https://developer.android.com/reference/java/lang/Class<T> target) ` Removes the given target from the list of targets that this Transition is interested in animating. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#setDuration(long)(long duration) ` Sets the duration of this transition. | | ` void` | ` https://developer.android.com/reference/android/transition/Transition#setEpicenterCallback(android.transition.Transition.EpicenterCallback)(https://developer.android.com/reference/android/transition/Transition.EpicenterCallback epicenterCallback) ` Sets the callback to use to find the epicenter of a Transition. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#setInterpolator(android.animation.TimeInterpolator)(https://developer.android.com/reference/android/animation/TimeInterpolator interpolator) ` Sets the interpolator of this transition. | | ` void` | ` https://developer.android.com/reference/android/transition/Transition#setMatchOrder(int[])(int... matches) ` Sets the order in which Transition matches View start and end values. | | ` void` | ` https://developer.android.com/reference/android/transition/Transition#setPathMotion(android.transition.PathMotion)(https://developer.android.com/reference/android/transition/PathMotion pathMotion) ` Sets the algorithm used to calculate two-dimensional interpolation. | | ` void` | ` https://developer.android.com/reference/android/transition/Transition#setPropagation(android.transition.TransitionPropagation)(https://developer.android.com/reference/android/transition/TransitionPropagation transitionPropagation) ` Sets the method for determining Animator start delays. | | ` https://developer.android.com/reference/android/transition/Transition` | ` https://developer.android.com/reference/android/transition/Transition#setStartDelay(long)(long startDelay) ` Sets the startDelay of this transition. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/transition/Transition#toString()() ` Returns a string representation of the object. | ||
| From class ` https://developer.android.com/reference/java/lang/Object ` |---|---| | ` https://developer.android.com/reference/java/lang/Object` | ` https://developer.android.com/reference/java/lang/Object#clone()() ` Creates and returns a copy of this object. | | ` boolean` | ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` https://developer.android.com/reference/java/lang/Object#finalize()() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final https://developer.android.com/reference/java/lang/Class<?>` | ` https://developer.android.com/reference/java/lang/Object#getClass()() ` Returns the runtime class of this `Object`. | | ` int` | ` https://developer.android.com/reference/java/lang/Object#hashCode()() ` Returns a hash code value for the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notify()() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notifyAll()() ` Wakes up all threads that are waiting on this object's monitor. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Object#toString()() ` Returns a string representation of the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait()() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||

## XML attributes

### android:resizeClip

Resize the view by adjusting the clipBounds rather than changing the
dimensions of the view itself. The default value is false.

May be a boolean value, such as "`true`" or
"`false`".

<br />

**Related methods:**

- `https://developer.android.com/reference/android/transition/ChangeBounds#setResizeClip(boolean)`

## Public constructors

### ChangeBounds

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public ChangeBounds ()
```

<br />

<br />

### ChangeBounds

Added in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public ChangeBounds (Context context, 
                AttributeSet attrs)
```

<br />

<br />

| Parameters ||
|---|---|
| `context` | `Context` <br /> |
| `attrs` | `AttributeSet` <br /> |

## Public methods

### captureEndValues

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void captureEndValues (TransitionValues transitionValues)
```

Captures the values in the end scene for the properties that this
transition monitors. These values are then passed as the endValues
structure in a later call to
`https://developer.android.com/reference/android/transition/Transition#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)`.
The main concern for an implementation is what the
properties are that the transition cares about and what the values are
for all of those properties. The start and end values will be compared
later during the
`https://developer.android.com/reference/android/transition/Transition#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)`
method to determine what, if any, animations, should be run.

Subclasses must implement this method. The method should only be called by the
transition system; it is not intended to be called from external classes.

<br />

<br />

| Parameters ||
|---|---|
| `transitionValues` | `TransitionValues`: The holder for any values that the Transition wishes to store. Values are stored in the `values` field of this TransitionValues object and are keyed from a String value. For example, to store a view's rotation value, a transition might call `transitionValues.values.put("appname:transitionname:rotation", view.getRotation())`. The target view will already be stored in the transitionValues structure when this method is called. <br /> |

### captureStartValues

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void captureStartValues (TransitionValues transitionValues)
```

Captures the values in the start scene for the properties that this
transition monitors. These values are then passed as the startValues
structure in a later call to
`https://developer.android.com/reference/android/transition/Transition#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)`.
The main concern for an implementation is what the
properties are that the transition cares about and what the values are
for all of those properties. The start and end values will be compared
later during the
`https://developer.android.com/reference/android/transition/Transition#createAnimator(android.view.ViewGroup,%20android.transition.TransitionValues,%20android.transition.TransitionValues)`
method to determine what, if any, animations, should be run.

Subclasses must implement this method. The method should only be called by the
transition system; it is not intended to be called from external classes.

<br />

<br />

| Parameters ||
|---|---|
| `transitionValues` | `TransitionValues`: The holder for any values that the Transition wishes to store. Values are stored in the `values` field of this TransitionValues object and are keyed from a String value. For example, to store a view's rotation value, a transition might call `transitionValues.values.put("appname:transitionname:rotation", view.getRotation())`. The target view will already be stored in the transitionValues structure when this method is called. <br /> |

### createAnimator

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public Animator createAnimator (ViewGroup sceneRoot, 
                TransitionValues startValues, 
                TransitionValues endValues)
```

This method creates an animation that will be run for this transition
given the information in the startValues and endValues structures captured
earlier for the start and end scenes. Subclasses of Transition should override
this method. The method should only be called by the transition system; it is
not intended to be called from external classes.

This method is called by the transition's parent (all the way up to the
topmost Transition in the hierarchy) with the sceneRoot and start/end
values that the transition may need to set up initial target values
and construct an appropriate animation. For example, if an overall
Transition is a `https://developer.android.com/reference/android/transition/TransitionSet` consisting of several
child transitions in sequence, then some of the child transitions may
want to set initial values on target views prior to the overall
Transition commencing, to put them in an appropriate state for the
delay between that start and the child Transition start time. For
example, a transition that fades an item in may wish to set the starting
alpha value to 0, to avoid it blinking in prior to the transition
actually starting the animation. This is necessary because the scene
change that triggers the Transition will automatically set the end-scene
on all target views, so a Transition that wants to animate from a
different value should set that value prior to returning from this method.

Additionally, a Transition can perform logic to determine whether
the transition needs to run on the given target and start/end values.
For example, a transition that resizes objects on the screen may wish
to avoid running for views which are not present in either the start
or end scenes.

If there is an animator created and returned from this method, the
transition mechanism will apply any applicable duration, startDelay,
and interpolator to that animation and start it. A return value of
`null` indicates that no animation should run. The default
implementation returns null.

The method is called for every applicable target object, which is
stored in the `https://developer.android.com/reference/android/transition/TransitionValues#view` field.

<br />

<br />

| Parameters ||
|---|---|
| `sceneRoot` | `ViewGroup`: This value cannot be `null`. <br /> |
| `startValues` | `TransitionValues`: This value may be `null`. <br /> |
| `endValues` | `TransitionValues`: This value may be `null`. <br /> |

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/animation/Animator` | This value may be `null`. <br /> |

### getResizeClip

Added in [API level 22](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean getResizeClip ()
```

Returns true when the ChangeBounds will resize by changing the clip bounds during the
view animation or false when bounds are changed. The default value is false.

<br />

**Related XML Attributes:**

- [android:resizeClip](https://developer.android.com/reference/android/transition/ChangeBounds#attr_android:resizeClip)

| Returns ||
|---|---|
| `boolean` | true when the ChangeBounds will resize by changing the clip bounds during the view animation or false when bounds are changed. The default value is false. <br /> |

### getTransitionProperties

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String[] getTransitionProperties ()
```

Returns the set of property names used stored in the `https://developer.android.com/reference/android/transition/TransitionValues`
object passed into `https://developer.android.com/reference/android/transition/Transition#captureStartValues(android.transition.TransitionValues)` that
this transition cares about for the purposes of canceling overlapping animations.
When any transition is started on a given scene root, all transitions
currently running on that same scene root are checked to see whether the
properties on which they based their animations agree with the end values of
the same properties in the new transition. If the end values are not equal,
then the old animation is canceled since the new transition will start a new
animation to these new values. If the values are equal, the old animation is
allowed to continue and no new animation is started for that transition.

A transition does not need to override this method. However, not doing so
will mean that the cancellation logic outlined in the previous paragraph
will be skipped for that transition, possibly leading to artifacts as
old transitions and new transitions on the same targets run in parallel,
animating views toward potentially different end values.

<br />

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | An array of property names as described in the class documentation for `https://developer.android.com/reference/android/transition/TransitionValues`. The default implementation returns `null`. <br /> |

### setReparent

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)   
Deprecated in [API level
21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void setReparent (boolean reparent)
```


**This method was deprecated
in API level 21.**   

Use `https://developer.android.com/reference/android/transition/ChangeTransform` to handle
transitions between different parents.

Setting this flag tells ChangeBounds to track the before/after parent
of every view using this transition. The flag is not enabled by
default because it requires the parent instances to be the same
in the two scenes or else all parents must use ids to allow
the transition to determine which parents are the same.

<br />

| Parameters ||
|---|---|
| `reparent` | `boolean`: true if the transition should track the parent container of target views and animate parent changes. <br /> |

### setResizeClip

Added in [API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void setResizeClip (boolean resizeClip)
```

When `resizeClip` is true, ChangeBounds resizes the view using the clipBounds
instead of changing the dimensions of the view during the animation. When
`resizeClip` is false, ChangeBounds resizes the View by changing its dimensions.

When resizeClip is set to true, the clip bounds is modified by ChangeBounds. Therefore,
`https://developer.android.com/reference/android/transition/ChangeClipBounds` is not compatible with ChangeBounds
in this mode.

<br />

<br />

**Related XML Attributes:**

- [android:resizeClip](https://developer.android.com/reference/android/transition/ChangeBounds#attr_android:resizeClip)

| Parameters ||
|---|---|
| `resizeClip` | `boolean`: Used to indicate whether the view bounds should be modified or the clip bounds should be modified by ChangeBounds. <br /> |

**See also:**

- `https://developer.android.com/reference/android/view/View#setClipBounds(android.graphics.Rect)`