Fixed: TransitionSet setStartDelay did nothing.

Bug 17452965

Change-Id: Id2fd6ed3bd8e7156dd3d22dcd83117cec12e3528

1 files changed, 14 insertions, 1 deletions

diff --git a/core/java/android/transition/TransitionSet.java b/core/java/android/transition/TransitionSet.java
index f6499ae0fd04..46d247a2eef4 100644
--- a/core/java/android/transition/TransitionSet.java
+++ b/core/java/android/transition/TransitionSet.java
@@ -390,7 +390,20 @@ public class TransitionSet extends Transition {
             ArrayList<TransitionValues> endValuesList) {
         startValues = removeExcludes(startValues);
         endValues = removeExcludes(endValues);
-        for (Transition childTransition : mTransitions) {
+        long startDelay = getStartDelay();
+        int numTransitions = mTransitions.size();
+        for (int i = 0; i < numTransitions; i++) {
+            Transition childTransition = mTransitions.get(i);
+            // We only set the start delay on the first transition if we are playing
+            // the transitions sequentially.
+            if (startDelay > 0 && (mPlayTogether || i == 0)) {
+                long childStartDelay = childTransition.getStartDelay();
+                if (childStartDelay > 0) {
+                    childTransition.setStartDelay(startDelay + childStartDelay);
+                } else {
+                    childTransition.setStartDelay(startDelay);
+                }
+            }
             childTransition.createAnimators(sceneRoot, startValues, endValues, startValuesList,
                     endValuesList);
         }