Reducing memory impact of hardware layers in Launcher

- Disabling hardware layers in customize tray
- Destroying hardware layers for pages in All Apps that are not visible
- Re-adding CachedTextView for icons in customize tray (to regain some of the lost performance there)

1 files changed, 14 insertions, 0 deletions

diff --git a/src/com/android/launcher2/PagedView.java b/src/com/android/launcher2/PagedView.java
index 96b0551ae..45baa6c88 100644
--- a/src/com/android/launcher2/PagedView.java
+++ b/src/com/android/launcher2/PagedView.java
@@ -596,7 +596,21 @@ public abstract class PagedView extends ViewGroup {
             canvas.clipRect(mScrollX, mScrollY, mScrollX + mRight - mLeft,
                     mScrollY + mBottom - mTop);
 
+            for (int i = 0; i < pageCount; i++) {
+                View child = getChildAt(i);
+                if (child != null && child instanceof PagedViewCellLayout) {
+                    boolean willBeDrawn = i >= leftScreen && i <= rightScreen;
+                    if (!willBeDrawn) {
+                        ((PagedViewCellLayout)child).destroyHardwareLayers();
+                    }
+                }
+            }
+
             for (int i = leftScreen; i <= rightScreen; i++) {
+                View child = getChildAt(i);
+                if (child != null && child instanceof PagedViewCellLayout) {
+                    ((PagedViewCellLayout)child).createHardwareLayers();
+                }
                 drawChild(canvas, getChildAt(i), drawingTime);
             }
             canvas.restore();