Three implementations of a live wallpaper showing a spinning cube.

One very basic, one slightly more elaborate (selectable shape, settings panel), and one that uses renderscript.

samples/CubeLiveWallpaper/src/com/android/livecubes/cube3/RenderScriptScene.java

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+/*
+ * Copyright (C) 2009 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.
+ */
+
+
+package com.android.livecubes;
+
+import android.content.res.Resources;
+import android.renderscript.RenderScript;
+import android.renderscript.ScriptC;
+
+public abstract class RenderScriptScene {
+    protected int mWidth;
+    protected int mHeight;
+    protected boolean mPreview;
+    protected Resources mResources;
+    protected RenderScript mRS;
+    protected ScriptC mScript;
+
+    public RenderScriptScene(int width, int height) {
+        mWidth = width;
+        mHeight = height;
+    }
+
+    public void init(RenderScript rs, Resources res, boolean isPreview) {
+        mRS = rs;
+        mResources = res;
+        mPreview = isPreview;
+        mScript = createScript();
+    }
+
+    public boolean isPreview() {
+        return mPreview;
+    }
+
+    public int getWidth() {
+        return mWidth;
+    }
+
+    public int getHeight() {
+        return mHeight;
+    }
+
+    public Resources getResources() {
+        return mResources;
+    }
+
+    public RenderScript getRS() {
+        return mRS;
+    }
+
+    public ScriptC getScript() {
+        return mScript;
+    }
+
+    protected abstract ScriptC createScript();
+
+    public void stop() {
+        mRS.contextBindRootScript(null);
+    }
+
+    public void start() {
+        mRS.contextBindRootScript(mScript);
+    }
+
+    public void resize(int width, int height) {
+        mWidth = width;
+        mHeight = height;
+    }
+
+    @SuppressWarnings({"UnusedDeclaration"})
+    public void setOffset(float xOffset, float yOffset, int xPixels, int yPixels) {
+    }
+}