Call onLauncherTransitionPrepare() and End() from pinch.

This makes the pinch transition more consistent with other transitions.
One immediate benefit of this is that it updates adjacent overview
panels during pinch, regardless of whether they are completely visible.

Previously the adjacent panels' alphas weren't always reset to 0.
Specifically, if you made a small pinch from workspace, which
canceled and went back to workspace, adjacent pages retained a
slightly visible panel.

Bug: 27676309
Change-Id: I7e79fddec31cd649e0811e4524b9a9a501c627f9

1 files changed, 2 insertions, 2 deletions

diff --git a/src/com/android/launcher3/PinchToOverviewListener.java b/src/com/android/launcher3/PinchToOverviewListener.java
index f32c8455e..0c8568e5e 100644
--- a/src/com/android/launcher3/PinchToOverviewListener.java
+++ b/src/com/android/launcher3/PinchToOverviewListener.java
@@ -108,6 +108,7 @@ public class PinchToOverviewListener extends ScaleGestureDetector.SimpleOnScaleG
         mInterpolator = mWorkspace.isInOverviewMode() ? new LogDecelerateInterpolator(100, 0)
                 : new LogAccelerateInterpolator(100, 0);
         mPinchStarted = true;
+        mWorkspace.onLauncherTransitionPrepare(mLauncher, false, true);
         return true;
     }
 
@@ -137,6 +138,7 @@ public class PinchToOverviewListener extends ScaleGestureDetector.SimpleOnScaleG
                     mThresholdManager);
         } else {
             mThresholdManager.reset();
+            mWorkspace.onLauncherTransitionEnd(mLauncher, false, true);
         }
         mPinchStarted = false;
         mPinchCanceled = false;
@@ -206,6 +208,4 @@ public class PinchToOverviewListener extends ScaleGestureDetector.SimpleOnScaleG
         mPreviousTimeMillis = System.currentTimeMillis();
         return false;
     }
-
-
 }
\ No newline at end of file