commit 257c9ea8d193807a805c3b3ba3489612f0fa82b0
author Tony Wickham <twickham@google.com> Thu May 03 20:59:40 2018 +0000
committer Android (Google) Code Review <android-gerrit@google.com> Thu May 03 20:59:40 2018 +0000
tree 20b10f4091464c8133637d9bab714540178081d3
parent 83f58f2d2cefa4e150175fc9d976c170453a03b8
parent 181968b87ba7557281d1d5dbb13d2c5012c1dc9c

Merge "Don't crash if getWidth is 0" into ub-launcher3-edmonton

quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java

diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 9fe1018..9dae9df 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -778,7 +778,12 @@
             int scrollForSecondTask = mRecentsView.getChildCount() > 1
                     ? mRecentsView.getScrollForPage(1) : scrollForFirstTask;
             int offsetFromFirstTask = scrollForFirstTask - scrollForSecondTask;
-            float interpolation = offsetFromFirstTask / (mRecentsView.getWidth() / 2);
+            final float interpolation;
+            if (mRecentsView.getWidth() == 0) {
+                interpolation = scrollForSecondTask == scrollForFirstTask ? 0 : 1;
+            } else {
+                interpolation = (float) offsetFromFirstTask / (mRecentsView.getWidth() / 2);
+            }
             mClipAnimationHelper.offsetTarget(
                     firstTask.getCurveScaleForInterpolation(interpolation), offsetFromFirstTask,
                     mActivityControlHelper.getTranslationYForQuickScrub(mActivity));