Android实现一个简单的视频播放

package com.pdsu.paint4; import java.io.IOException; import android.app.Activity; import android.graphics.PixelFormat; import android.media.AudioManager; import android.media.MediaPlayer; import android.os.Bundle; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class MainActivity extends Activity implements OnClickListener, SurfaceHolder.Callback { String path = "/sdcard/xjdct01.3gp"; Button play_Button; Button pause_Button; MediaPlayer mediaPlayer; SurfaceView surfaceView; boolean isPause = false; private SurfaceHolder surfaceHolder; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); play_Button = (Button) findViewById(R.id.play2_Button); play_Button.setOnClickListener(this); pause_Button = (Button) findViewById(R.id.pause2_Button); pause_Button.setOnClickListener(this); getWindow().setFormat(PixelFormat.UNKNOWN); surfaceView = (SurfaceView) findViewById(R.id.surfaceView); surfaceHolder = surfaceView.getHolder(); surfaceHolder.addCallback(this); surfaceHolder.setFixedSize(176, 144); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); mediaPlayer = new MediaPlayer(); } public void onClick(View v) { if (v == play_Button) { isPause = false; playVideo(path); } else if (v == pause_Button) { if (isPause == false) { mediaPlayer.pause(); isPause = true; } } else { mediaPlayer.start(); isPause=false; } } public void playVideo(String strPath) { if (mediaPlayer.isPlaying() == true) { mediaPlayer.reset(); } mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayer.setDisplay(surfaceHolder); try { mediaPlayer.setDataSource(strPath); mediaPlayer.prepare(); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } mediaPlayer.start(); } @Override public void surfaceCreated(SurfaceHolder holder) { // TODO Auto-generated method stub } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // TODO Auto-generated method stub } @Override public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } }