New API to let apps draw without layers.

Bug #3413433

Launcher now enables layers all the time, but in some cases (for instance, when the
workspace is not scrolling,) it is more efficient to draw without the layer.

Change-Id: I625fb5b48506acda9ae75356fdbbe812c85f2aab

1 files changed, 48 insertions, 0 deletions

diff --git a/tests/HwAccelerationTest/res/layout/view_layers_5.xml b/tests/HwAccelerationTest/res/layout/view_layers_5.xml
new file mode 100644
index 0000000..653f3a8
--- /dev/null
+++ b/tests/HwAccelerationTest/res/layout/view_layers_5.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="horizontal"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="0dip"
+        android:layout_height="match_parent"
+        android:layout_weight="1">
+
+        <Button
+            android:onClick="setLayerEnabled"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Enable layer" />
+
+        <Button
+            android:onClick="setLayerDisabled"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Disable layer" />
+        
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/list1"
+        android:layout_width="0dip"
+        android:layout_height="match_parent"
+        android:layout_weight="1" />
+
+</LinearLayout>