Transition.EpicenterCallback
public abstract class Transition.EpicenterCallback
Class to get the epicenter of Transition. Use setEpicenterCallback to set the callback used to calculate the epicenter of the Transition. Override getEpicenter to return the rectangular region in screen coordinates of the epicenter of the transition.
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setEpicenterCallback |
Summary
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Public methods |
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abstract @Nullable Rect |
onGetEpicenter(@NonNull Transition transition)Implementers must override to return the epicenter of the Transition in screen coordinates. |
Public constructors
Public methods
onGetEpicenter
public abstract @Nullable Rect onGetEpicenter(@NonNull Transition transition)
Implementers must override to return the epicenter of the Transition in screen coordinates. Transitions like android.transition.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 android.transition.Fade pay no attention to the epicenter.
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@NonNull Transition transition |
The transition for which the epicenter applies. |