1 package com.example.surfaceview;

 2

 3 import android.app.Activity;

 4 import android.os.Bundle;

 5

 6 public class MainActivity extends Activity {

 7

 8     @Override

 9     protected void onCreate(Bundle savedInstanceState) {

10         super.onCreate(savedInstanceState);

11         setContentView(new MyView(this));

12

13     }

14

15 }

 1 package com.example.surfaceview;

 2

 3 import android.content.Context;

 4 import android.graphics.Canvas;

 5 import android.graphics.Color;

 6 import android.graphics.Paint;

 7 import android.view.SurfaceHolder;

 8 import android.view.SurfaceView;

 9

10 public class MyView extends SurfaceView implements SurfaceHolder.Callback {

11

12     private Paint paint = null;

13

14     public MyView(Context context) {

15         super(context);

16         paint = new Paint();

17         paint.setColor(Color.RED);

18         getHolder().addCallback(this);

19     }

20

21     // 一定要锁定画布和解锁画布

22     public void draw() {

23         Canvas canvas = getHolder().lockCanvas();

24         canvas.drawColor(Color.WHITE);

25         canvas.drawRect(0, 0, 100, 100, paint);

26

27         getHolder().unlockCanvasAndPost(canvas);

28

29     }

30

31     @Override

32     public void surfaceCreated(SurfaceHolder holder) {

33         draw();

34     }

35

36     @Override

37     public void surfaceChanged(SurfaceHolder holder, int format, int width,

38             int height) {

39         // TODO Auto-generated method stub

40

41     }

42

43     @Override

44     public void surfaceDestroyed(SurfaceHolder holder) {

45         // TODO Auto-generated method stub

46

47     }

48

49 }