android动态壁纸---线条

android SDK2.1中有关于动态壁纸的2个演示DEMO，本人在网上查了相关资料。找到了一个演示DEMO的源代码，希望和大家分享。
同时谢谢提供代码的LZ.并且再此基础上本人做了一个简单的线条动态壁纸,后续还有动态壁纸---球的感应动作实例和大家一起分享学习。
 
DEMO

 
ALiveWall.java
 
package com.mwongxming.LiveWall;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Handler;
import android.os.SystemClock;
import android.service.wallpaper.WallpaperService;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
public class ALiveWall extends WallpaperService{
 private final Handler mHandler = new Handler();
 
 @Override
    public Engine onCreateEngine() {
        return new CubeEngine();
    }
    class CubeEngine extends Engine {
        private final Paint mPaint = new Paint();
        private float mOffset;
        private float mTouchX = -1;
        private float mTouchY = -1;
        private long mStartTime;
        private float mCenterX;
        private float mCenterY;
        private final Runnable mDrawCube = new Runnable() {
            public void run() {
                drawFrame();
            }
        };
        private boolean mVisible;
        CubeEngine() {
            // Create a Paint to draw the lines for our cube
            final Paint paint = mPaint;
            paint.setColor(0xffffffff);
            paint.setAntiAlias(true);
            paint.setStrokeWidth(2);
            paint.setStrokeCap(Paint.Cap.ROUND);
            paint.setStyle(Paint.Style.STROKE);
            mStartTime = SystemClock.elapsedRealtime();
        }
        @Override