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Explode

public class Explode
extends Visibility

java.lang.Object
   ↳ android.transition.Transition
     ↳ android.transition.Visibility
       ↳ android.transition.Explode


This transition tracks changes to the visibility of target views in the start and end scenes and moves views in or out from the edges of the scene. Visibility is determined by both the setVisibility(int) state of the view as well as whether it is parented in the current view hierarchy. Disappearing Views are limited as described in onDisappear(android.view.ViewGroup, TransitionValues, int, TransitionValues, int).

Views move away from the focal View or the center of the Scene if no epicenter was provided.

Summary

Inherited XML attributes

From class android.transition.Visibility
From class android.transition.Transition

Inherited constants

From class android.transition.Visibility
From class android.transition.Transition

Public constructors

Explode()
Explode(Context context, AttributeSet attrs)

Public methods

void captureEndValues(TransitionValues transitionValues)

Captures the values in the end scene for the properties that this transition monitors.

void captureStartValues(TransitionValues transitionValues)

Captures the values in the start scene for the properties that this transition monitors.

Animator onAppear(ViewGroup sceneRoot, View view, TransitionValues startValues, TransitionValues endValues)

The default implementation of this method returns a null Animator.

Animator onDisappear(ViewGroup sceneRoot, View view, TransitionValues startValues, TransitionValues endValues)

The default implementation of this method returns a null Animator.

Inherited methods

From class android.transition.Visibility
From class android.transition.Transition
From class java.lang.Object

Public constructors

Explode

added in API level 21
Explode ()

Explode

added in API level 21
Explode (Context context, 
                AttributeSet attrs)

Parameters
context Context

attrs AttributeSet

Public methods

captureEndValues

added in API level 21
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 createAnimator(ViewGroup, TransitionValues, 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 createAnimator(android.view.ViewGroup, TransitionValues, 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.

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.

captureStartValues

added in API level 21
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 createAnimator(ViewGroup, TransitionValues, 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 createAnimator(android.view.ViewGroup, TransitionValues, 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.

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.

onAppear

added in API level 21
Animator onAppear (ViewGroup sceneRoot, 
                View view, 
                TransitionValues startValues, 
                TransitionValues endValues)

The default implementation of this method returns a null Animator. Subclasses should override this method to make targets appear with the desired transition. The method should only be called from onAppear(ViewGroup, TransitionValues, int, TransitionValues, int).

Parameters
sceneRoot ViewGroup: The root of the transition hierarchy

view View: The View to make appear. This will be in the target scene's View hierarchy and will be VISIBLE.

startValues TransitionValues: The target values in the start scene

endValues TransitionValues: The target values in the end scene

Returns
Animator An Animator to be started at the appropriate time in the overall transition for this scene change. A null value means no animation should be run.

onDisappear

added in API level 21
Animator onDisappear (ViewGroup sceneRoot, 
                View view, 
                TransitionValues startValues, 
                TransitionValues endValues)

The default implementation of this method returns a null Animator. Subclasses should override this method to make targets disappear with the desired transition. The method should only be called from onDisappear(ViewGroup, TransitionValues, int, TransitionValues, int).

Parameters
sceneRoot ViewGroup: The root of the transition hierarchy

view View: The View to make disappear. This will be in the target scene's View hierarchy or in an ViewGroupOverlay and will be VISIBLE.

startValues TransitionValues: The target values in the start scene

endValues TransitionValues: The target values in the end scene

Returns
Animator An Animator to be started at the appropriate time in the overall transition for this scene change. A null value means no animation should be run.

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