Surface和SurfaceView以及SurfaceHolder的认识及使用-飞外

* 0 http://blog.csdn.net/pathuang68/article/details/7351317 * 1 http://blog.csdn.net/yanzi1225627/article/details/8236309 * 2 http://blog.csdn.net/yuanlong_zheng/article/details/7592457 * Thank you very muchpublic class MainActivity extends Activity { private ImageMovingSurfaceView mImageMovingSurfaceView; private PhotoMovingSurfaceView mPhotoMovingSurfaceView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //方式一: mImageMovingSurfaceView= new ImageMovingSurfaceView(MainActivity.this); setContentView(mImageMovingSurfaceView); //方式二:// mPhotoMovingSurfaceView=// new PhotoMovingSurfaceView(MainActivity.this);// setContentView(mPhotoMovingSurfaceView);

ImageMovingSurfaceView如下:

package cn.testcleancanvas;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.PorterDuffXfermode;import android.graphics.PorterDuff.Mode;import android.view.SurfaceHolder;import android.view.SurfaceHolder.Callback;import android.view.SurfaceView; * 参考资料: * 0 http://blog.csdn.net/pathuang68/article/details/7351317 * 1 http://blog.csdn.net/yanzi1225627/article/details/8236309 * 2 http://blog.csdn.net/yuanlong_zheng/article/details/7592457 * Thank you very muchpublic class ImageMovingSurfaceView extends SurfaceView implements Callback { private int lastX=0; private Paint mPaint; private Bitmap mBitmap; private Canvas mCanvas; private boolean isSurfaceRun = true; private SurfaceHolder mSurfaceHolder; private DrawMovingImageThread mDrawMovingImageThread; public ImageMovingSurfaceView(Context context) { super(context); init(); private void init(){ mPaint=new Paint(); //SurfaceView的方法getHolder() mSurfaceHolder=this.getHolder(); mSurfaceHolder.addCallback(this); mDrawMovingImageThread=new DrawMovingImageThread(); mBitmap=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher); //开启线程不断地绘制Bitmap private class DrawMovingImageThread extends Thread{ @Override public void run() { super.run(); while (isSurfaceRun) { drawMovingImage(); try { Thread.sleep(300); } catch (Exception e) { e.printStackTrace(); private void drawMovingImage(){ mCanvas=mSurfaceHolder.lockCanvas(); if (mCanvas!=null) { //以下四行为清屏的核心代码: Paint paint = new Paint(); paint.setXfermode(new PorterDuffXfermode(Mode.CLEAR)); mCanvas.drawPaint(paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC)); //在每次画之前先进行清屏 mCanvas.drawBitmap(mBitmap, lastX, 40, mPaint); lastX+=20; if (lastX =370) { lastX=0; mSurfaceHolder.unlockCanvasAndPost(mCanvas); //以下三个方法为android.view.SurfaceHolder.Callback接口的实现 @Override public void surfaceCreated(SurfaceHolder arg0) { mDrawMovingImageThread.start(); @Override public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) { @Override public void surfaceDestroyed(SurfaceHolder arg0) { isSurfaceRun=false;


PhotoMovingSurfaceView如下:

package cn.testcleancanvas;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.PorterDuffXfermode;import android.graphics.PorterDuff.Mode;import android.view.SurfaceHolder;import android.view.SurfaceHolder.Callback;import android.view.SurfaceView; * 参考资料: * 0 http://blog.csdn.net/pathuang68/article/details/7351317 * 1 http://blog.csdn.net/yanzi1225627/article/details/8236309 * 2 http://blog.csdn.net/yuanlong_zheng/article/details/7592457 * Thank you very muchpublic class PhotoMovingSurfaceView extends SurfaceView implements Callback { private int lastX=0; private Paint mPaint; private Bitmap mBitmap; private Canvas mCanvas; private boolean isSurfaceRun = true; private SurfaceHolder mSurfaceHolder; private DrawMovingImageThread mDrawMovingImageThread; public PhotoMovingSurfaceView(Context context) { super(context); init(); private void init(){ mPaint=new Paint(); //SurfaceView的方法getHolder() mSurfaceHolder=this.getHolder(); mSurfaceHolder.addCallback(this); mDrawMovingImageThread=new DrawMovingImageThread(); mBitmap=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher); //开启线程不断地绘制Bitmap private class DrawMovingImageThread extends Thread{ @Override public void run() { super.run(); while (isSurfaceRun) { drawMovingImage(); try { Thread.sleep(300); } catch (Exception e) { e.printStackTrace(); private void drawMovingImage(){ mCanvas=mSurfaceHolder.lockCanvas(); if (mCanvas!=null) { //以下四行为清屏的核心代码: Paint paint = new Paint(); paint.setXfermode(new PorterDuffXfermode(Mode.CLEAR)); mCanvas.drawPaint(paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC)); //在每次画之前先进行清屏 mCanvas.drawBitmap(mBitmap, lastX, 40, mPaint); lastX+=20; if (lastX =370) { lastX=0; mSurfaceHolder.unlockCanvasAndPost(mCanvas); @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); mDrawMovingImageThread.start(); //以下三个方法为android.view.SurfaceHolder.Callback接口的实现 @Override public void surfaceCreated(SurfaceHolder holder) { //调用SurfaceView的onDraw()方法 onDraw(null); @Override public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) { @Override public void surfaceDestroyed(SurfaceHolder arg0) { isSurfaceRun=false;


main.xml如下:

 RelativeLayout xmlns:andro xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent"

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