Transition.EpicenterCallback

Kotlin |Java

public static abstract class Transition.EpicenterCallback
extends Object

java.lang.Object
↳	android.transition.Transition.EpicenterCallback

Class to get the epicenter of Transition. Use Transition.setEpicenterCallback(android.transition.Transition.EpicenterCallback) to set the callback used to calculate the epicenter of the Transition. Override Transition.getEpicenter() to return the rectangular region in screen coordinates of the epicenter of the transition.

See also:

Transition.setEpicenterCallback(android.transition.Transition.EpicenterCallback)

Summary

Public constructors
`EpicenterCallback()`

Public methods
`abstract Rect`	`onGetEpicenter(Transition transition)` Implementers must override to return the epicenter of the Transition in screen coordinates.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(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`	`wait(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`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

EpicenterCallback

public EpicenterCallback ()

Public methods

onGetEpicenter

Added in API level 21

public abstract Rect onGetEpicenter (Transition transition)

Implementers must override to return the epicenter of the Transition in screen coordinates. Transitions like Explode depend upon an epicenter for the Transition. In Explode, Views move toward or away from the center of the epicenter Rect along the vector between the epicenter and the center of the View appearing and disappearing. Some Transitions, such as Fade pay no attention to the epicenter.

Parameters
`transition`	`Transition`: The transition for which the epicenter applies.

Returns
`Rect`	The Rect region of the epicenter of `transition` or null if there is no epicenter.