SurfaceView一般会与SurfaceHolder结合使用，SurfaceHolder用于与之关联的SurfaceView上绘图，调用SurfaceView的getHolder()方法可获取SurfaceView关联的SurfaceHolder.

SurfaceHolder提供了lockCanvas和lockCanvas(Rect dirty)来锁定绘图区域，并获取到该区域的画布（Canvas）我们通过该画布就可以进行图形的绘制了。

1、一个简单的使用（绘制在UI线程）

package com.test.surfaceview;

import android.app.Activity;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Rect;

import android.os.Bundle;

import android.view.MotionEvent;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.view.View;

import android.view.View.OnTouchListener;

import com.example.testsurfaceview.R;

public class MainActivity extends Activity{

	private SurfaceHolder holder;

	private Paint paint;

	private Rect rect;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		paint = new Paint();

		rect = new Rect();

		SurfaceView surface = (SurfaceView)findViewById(R.id.show);

		holder = surface.getHolder();

		//由系统毁掉的三个函数

		holder.addCallback(new SurfaceHolder.Callback() {

			@Override

			public void surfaceDestroyed(SurfaceHolder holder) {

			}

			@Override

			public void surfaceCreated(SurfaceHolder holder) {

				Canvas canvas = holder.lockCanvas();

				Bitmap bitmap = BitmapFactory.decodeResource(

						MainActivity.this.getResources(), R.drawable.ic_launcher);

				canvas.drawBitmap(bitmap, 0, 0, null);

				holder.unlockCanvasAndPost(canvas);

			}

			@Override

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

					int height) {

			}

		});

		//绑定事件监听

		surface.setOnTouchListener(new OnTouchListener() {

			@Override

			public boolean onTouch(View v, MotionEvent event) {

				if(event.getAction() == MotionEvent.ACTION_DOWN){

					int cx = (int)event.getX();

					int cy = (int)event.getY();

					rect.set(cx - 50, cy - 50, cx + 50, cy + 50);

					//锁定一个固定区域并锁定

					Canvas canvas = holder.lockCanvas(rect);

					//保存画布当前状态

					canvas.save();

					//旋转画布

					canvas.rotate(30, cx, cy);

					paint.setColor(Color.RED);

					//绘制方块

					canvas.drawRect(cx - 40, cy - 40, cx, cy, paint);

					//恢复画布

					canvas.restore();

					paint.setColor(Color.GREEN);

					//绘制方块

					canvas.drawRect(cx, cy, cx + 40, cy + 40, paint);

					//绘制完成，释放画布，提交修改

					holder.unlockCanvasAndPost(canvas);

				}

				return false;

			}

		});

	}

}

2、在非UI线程中绘制

package com.test.surfaceview;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Rect;

import android.os.AsyncTask;

import android.util.AttributeSet;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import com.example.testsurfaceview.R;

/**

 * 阳光小强 http://blog.csdn.net/dawanganban

 *

 * @author Administrator

 *

 */

public class MySurfaceView extends SurfaceView {

	private Context context;

	private Rect rect;

	private Paint paint;

	private AppStartDrawView appStartDrawView;

	public MySurfaceView(Context context, AttributeSet attrs) {

		super(context, attrs);

		this.context = context;

		rect = new Rect();

		paint = new Paint();

		appStartDrawView = new AppStartDrawView();

		this.getHolder().addCallback(appStartDrawView);

	}

	/**

	 * 停止动画

	 */

	public void stopAnim() {

		appStartDrawView.cancel(true);

	}

	private class AppStartDrawView extends AsyncTask<Void, Integer, Void> implements SurfaceHolder.Callback {

		private boolean isStarted = false;

		private SurfaceHolder holder;

		@Override

		public void surfaceCreated(SurfaceHolder holder) {

			this.holder = holder;

			//绘制一个图片

			Canvas canvas = holder.lockCanvas();

			Bitmap bitmap = BitmapFactory.decodeResource(

					context.getResources(), R.drawable.ic_launcher);

			canvas.drawBitmap(bitmap, 0, 0, null);

			holder.unlockCanvasAndPost(canvas);

			if (!isStarted) {

				this.execute();

				isStarted = true;

			}

		}

		@Override

		public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

			this.holder = holder;

		}

		@Override

		public void surfaceDestroyed(SurfaceHolder holder) {

			isStarted = false;

			holder = null;

		}

		@Override

		protected Void doInBackground(Void... params) {

			int cx = 0;

			int cy = 0;

			while(!isCancelled()){

				//绘制动画

				//TODO .....

				rect.set(cx - 50, cy - 50, cx + 50, cy + 50);

				//锁定一个固定区域并锁定

				Canvas canvas = holder.lockCanvas(rect);

				//保存画布当前状态

				canvas.save();

				//旋转画布

				canvas.rotate(30, cx, cy);

				paint.setColor(Color.RED);

				//绘制方块

				canvas.drawRect(cx - 40, cy - 40, cx, cy, paint);

				//恢复画布

				canvas.restore();

				paint.setColor(Color.GREEN);

				//绘制方块

				canvas.drawRect(cx, cy, cx + 40, cy + 40, paint);

				//绘制完成，释放画布，提交修改

				holder.unlockCanvasAndPost(canvas);

				//TODO ....

				try {

					Thread.sleep(1000);

				} catch (InterruptedException e) {

					e.printStackTrace();

				}

				cx += 60;

				cy += 60;

				if(cx  >= 400){

					stopAnim();

				}

			}

			return null;

		}

	}

}