commit 5e368ffbad2fb08e3eadab98eeefd4e1d05bdb2b
author Michael Jurka <mikejurka@google.com> Mon May 14 23:13:15 2012 -0700
committer Michael Jurka <mikejurka@google.com> Tue May 15 16:53:00 2012 -0700
tree 6efd6f14b5f6f52d6ff3a4311d574438424e51b1
parent ceca4ff1891baf033cd9d6951ec5a1d31473642f

Solve stutter when swiping All Apps the first time

Bug: 6024062
Change-Id: I6e05e9916389b1d90bd59443a04720fbf2338f5e

src/com/android/launcher2/PagedView.java

diff --git a/src/com/android/launcher2/PagedView.java b/src/com/android/launcher2/PagedView.java
index 5d9cf81..a9603ac 100644
--- a/src/com/android/launcher2/PagedView.java
+++ b/src/com/android/launcher2/PagedView.java
@@ -133,6 +133,7 @@
     protected boolean mAllowOverScroll = true;
     protected int mUnboundedScrollX;
     protected int[] mTempVisiblePagesRange = new int[2];
+    protected boolean mForceDrawAllChildrenNextFrame;
 
     // mOverScrollX is equal to getScrollX() when we're within the normal scroll range. Otherwise
     // it is equal to the scaled overscroll position. We use a separate value so as to prevent
@@ -796,13 +797,15 @@
                 // View.INVISIBLE, preventing re-drawing of their hardware layer
                 for (int i = getChildCount() - 1; i >= 0; i--) {
                     final View v = getPageAt(i);
-                    if (leftScreen <= i && i <= rightScreen && shouldDrawChild(v)) {
+                    if (mForceDrawAllChildrenNextFrame ||
+                               (leftScreen <= i && i <= rightScreen && shouldDrawChild(v))) {
                         v.setVisibility(VISIBLE);
                         drawChild(canvas, v, drawingTime);
                     } else {
                         v.setVisibility(INVISIBLE);
                     }
                 }
+                mForceDrawAllChildrenNextFrame = false;
                 canvas.restore();
             }
         }