视频播放器MP4的简单实现

截图：

其实视频播放器的实现与音乐播放器的实现没有太大的区别。主要体现在：

1)main.xml

增加了<ImageView />(用来显示图片按钮)、<SurfaceView />(用来作为屏幕)

2)MainActivity

其实大部分还是一样的。只是在MP3音乐播放器的基础上早合适的位置上增加了以下：

package com.NJUPT.mp4_1;import java.io.File;import android.media.MediaPlayer;import android.media.MediaPlayer.OnPreparedListener;import android.os.Bundle;import android.os.Environment;import android.app.Activity;import android.view.Menu;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.View;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {private MediaPlayer mp;private File file;private EditText et_name;private boolean pause;private int position = 0;private SurfaceView surfaceView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);et_name = (EditText) findViewById(R.id.et_name);surfaceView = (SurfaceView) findViewById(R.id.sv_info);SurfaceHolder holder = surfaceView.getHolder();holder.setFixedSize(176, 144);holder.setKeepScreenOn(true);holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);}public void play(View v) {String name = et_name.getText().toString();file = new File(Environment.getExternalStorageDirectory(), name);if (!file.exists()) {Toast.makeText(this, "sorry,视频文件不存在", 1).show();} else {play();}}public void play() {try {mp = new MediaPlayer();mp.reset();mp.setDataSource(file.getAbsolutePath());mp.setDisplay(surfaceView.getHolder());mp.prepare();mp.setOnPreparedListener(new MyOnPrepareListener());} catch (Exception e) {e.printStackTrace();}}private class MyOnPrepareListener implements OnPreparedListener {@Overridepublic void onPrepared(MediaPlayer mp) {mp.start();}}public void pause(View v) {if (mp != null) {if (mp.isPlaying()) {mp.pause();pause = true;} else {mp.start();pause = false;}}}public void stop(View v) {if (mp != null) {mp.stop();}}public void reset(View v) {stop(v);play();}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

http://download.csdn.net/detail/caihongshijie6/6285127