android SurfaceView施用例子

做游戏一般用SurfaceView

package com.himi; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.SurfaceHolder.Callback; import android.view.animation.Animation; /** * @author Himi */ public class MySurfaceView extends SurfaceView implements Callback, Runnable {// 备注1 private SurfaceHolder sfh; private Thread th; private Canvas canvas; private Paint paint; private int ScreenW, ScreenH; public MySurfaceView(Context context) { super(context); th = new Thread(this); sfh = this.getHolder(); sfh.addCallback(this); // 备注1 paint = new Paint(); paint.setAntiAlias(true); paint.setColor(Color.RED); this.setKeepScreenOn(true);// 保持屏幕常亮 } @Override public void startAnimation(Animation animation) { super.startAnimation(animation); } public void surfaceCreated(SurfaceHolder holder) { ScreenW = this.getWidth();// 备注2 ScreenH = this.getHeight(); th.start(); } private void draw() { try { canvas = sfh.lockCanvas(); // 得到一个canvas实例 canvas.drawColor(Color.WHITE);// 刷屏 canvas.drawText("Himi", 100, 100, paint);// 画文字文本 canvas.drawText("这就是简单的一个游戏框架", 100, 130, paint); sfh.unlockCanvasAndPost(canvas); // 将画好的画布提交 } catch (Exception ex) { } finally { // 备注3 if (canvas != null) sfh.unlockCanvasAndPost(canvas); } } public void run() { while (true) { draw(); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } }