public abstract class

Transition.EpicenterCallback

extends java.lang.Object

 java.lang.Object

↳androidx.transition.Transition.EpicenterCallback

Overview

Class to get the epicenter of Transition. Use Transition.setEpicenterCallback(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.

Summary

Constructors
publicEpicenterCallback()

Methods
public abstract RectonGetEpicenter(Transition transition)

Implementers must override to return the epicenter of the Transition in screen coordinates.

from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public EpicenterCallback()

Methods

public abstract Rect onGetEpicenter(Transition transition)

Implementers must override to return the epicenter of the Transition in screen coordinates. Transitions like 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 pay no attention to the epicenter.

Parameters:

transition: The transition for which the epicenter applies.

Returns:

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