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Add start/endTransition events for CHANGE transitions

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There was already a mechanism for sending out events for LayoutTransition
when animations started or ended, but the implementation only sent out events
for the appearing/disappearing animations. This fix provides callbacks to
listeners for the CHANGE_APPEARING and CHANGE_DISAPPEARING transitions, too.

Change-Id: Icfb8cc1c20d2df3e4a817255e96c9d0e94c1d8c4
This commit is contained in:
Chet Haase
2011-01-09 09:43:39 -08:00
parent b0512c3725
commit 2954cd91ab
1 changed files with 20 additions and 0 deletions
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20
core/java/android/animation/LayoutTransition.java
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@@ -600,6 +600,18 @@ public class LayoutTransition {
// Remove the animation from the cache when it ends
anim.addListener(new AnimatorListenerAdapter() {
private boolean canceled = false;
@Override
public void onAnimationStart(Animator animator) {
if (mListeners != null) {
for (TransitionListener listener : mListeners) {
listener.startTransition(LayoutTransition.this, parent, child,
changeReason == APPEARING ?
CHANGE_APPEARING : CHANGE_DISAPPEARING);
}
}
}
@Override
public void onAnimationCancel(Animator animator) {
// we remove canceled animations immediately, not here
@@ -607,11 +619,19 @@ public class LayoutTransition {
child.removeOnLayoutChangeListener(listener);
layoutChangeListenerMap.remove(child);
}
@Override
public void onAnimationEnd(Animator animator) {
if (!canceled) {
currentChangingAnimations.remove(child);
}
if (mListeners != null) {
for (TransitionListener listener : mListeners) {
listener.endTransition(LayoutTransition.this, parent, child,
changeReason == APPEARING ?
CHANGE_APPEARING : CHANGE_DISAPPEARING);
}
}
}
});