Fix cancellation of AnimatorSet when child animation has delay

Previously, AnimatorSet incorrectly checked whether child animations were
'running' to figure out what to cancel. If a child animation was started, but
sitting in a startDelay phase, it was not 'running', so the right cancel/end
events would not propagate.

The fix is to add a new isStarted() API to Animator, which returns true when
the animator has started (but not yet ended), regardless of whether the animator
has a startDelay or not. It's basically a superset of the existing isRunning()
method, which only returns true when an animator has actually started setting values.

Change-Id: I126814cb6637b58295b6d18d9b155235671f99be

1 files changed, 1 insertions, 0 deletions

diff --git a/api/current.txt b/api/current.txt
index 5a599ce..73fe3b2 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2179,6 +2179,7 @@ package android.animation {
     method public java.util.ArrayList<android.animation.Animator.AnimatorListener> getListeners();
     method public abstract long getStartDelay();
     method public abstract boolean isRunning();
+    method public boolean isStarted();
     method public void removeAllListeners();
     method public void removeListener(android.animation.Animator.AnimatorListener);
     method public abstract android.animation.Animator setDuration(long);