Android视频播放
视频播放优好多种，一种是播放系统可以播放的视频文件，一种是播放动态码流，前一种比较简单，后一种需要对视频进行解码，然后才能播放，今天就先写上前一种，后一种需要Jni进行AndroidNDK编程
android有两个组建可以用来观看视频，一个是VideoView一个是SurfaceView；
用VideoView观看视频：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <VideoView android:id="@+id/video" android:layout_width="wrap_content" android:layout_height="wrap_content" /></LinearLayout>
?源代码：
public class VideoTestActivity extends Activity {/** Called when the activity is first created. */private VideoView videoView;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);findID();}private void findID() {videoView = (VideoView) findViewById(R.id.video);// videoView.setVideoPath(Environment.getExternalStorageDirectory()+"/moto_0012.3gp");//本地资源videoView.setVideoURI(Uri.parse("http://172.16.108.151/video/test1.mp4"));// 网络资源videoView.setMediaController(new MediaController(VideoTestActivity.this));// 设置模式，播放进度条videoView.requestFocus();videoView.start();}}?用SurfaceView播放
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent"><TextView android:layout_width="fill_parent"android:layout_height="wrap_content" android:text="@string/hello" /><SurfaceView android:id="@+id/surfaceView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_gravity="center"></SurfaceView></LinearLayout>
?Java代码
package com.Aina.Android;import android.app.Activity;import android.media.AudioManager;import android.media.MediaPlayer;import android.media.MediaPlayer.OnBufferingUpdateListener;import android.media.MediaPlayer.OnCompletionListener;import android.net.Uri;import android.os.Bundle;import android.util.Log;import android.view.SurfaceHolder;import android.view.SurfaceView;public class Test extends Activity implements OnBufferingUpdateListener,OnCompletionListener, MediaPlayer.OnPreparedListener,SurfaceHolder.Callback {private int width = 0;private int height = 0;private MediaPlayer mMediaPlayer = null;private SurfaceView mSurfaceView = null;private SurfaceHolder holder = null;private String path = "";/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mSurfaceView = (SurfaceView) this.findViewById(R.id.surfaceView);holder = mSurfaceView.getHolder();holder.addCallback(this);holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);// 设置风格}public void playVedio() {try {path = android.os.Environment.getExternalStorageDirectory()+ "/moto_0012.3gp";mMediaPlayer = new MediaPlayer();//mMediaPlayer.setDataSource(path);mMediaPlayer.setDataSource(this, Uri.parse("http://192.168.0.132:8080/mp.mp4"));mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);mMediaPlayer.setDisplay(holder);mMediaPlayer.prepare();// 准备Log.i("TAG-Duration", mMediaPlayer.getDuration()+"");mMediaPlayer.setOnBufferingUpdateListener(this);mMediaPlayer.setOnCompletionListener(this);mMediaPlayer.setOnPreparedListener(this);} catch (Exception ex) {}}public void onBufferingUpdate(MediaPlayer mp, int percent) {// TODO Auto-generated method stubLog.i("TAG-onBufferingUpdate", percent+"|"+mMediaPlayer.getCurrentPosition());}public void onCompletion(MediaPlayer mp) {// TODO Auto-generated method stubLog.i("TAG-onCompletion", "Completion");}public void onPrepared(MediaPlayer mp) {// TODO Auto-generated method stubwidth = mMediaPlayer.getVideoWidth();height = mMediaPlayer.getVideoHeight();if(width !=0 && height !=0){holder.setFixedSize(width, height);//设置视频高宽mMediaPlayer.start();Log.i("TAG-Duration2", mMediaPlayer.getDuration()+"");}}public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {// TODO Auto-generated method stub}public void surfaceCreated(SurfaceHolder holder) {// TODO Auto-generated method stubplayVedio();}public void surfaceDestroyed(SurfaceHolder holder) {// TODO Auto-generated method stubLog.i("TAG-surfaceDestroyed", "surfaceDestroyed");}@Overrideprotected void onPause() {super.onPause();if(mMediaPlayer != null){if(mMediaPlayer.isPlaying()){mMediaPlayer.stop();}mMediaPlayer.reset();mMediaPlayer.release();mMediaPlayer = null;}}}?