Android多媒体之VideoView视频播放器

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_media_play" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" tools:context="com.zking.android_contentresolve.MediaPlayActivity"> <SurfaceView  android:layout_width="match_parent"  android:layout_height="300dp"  android:id="@+id/sv_media_surface"  /> <LinearLayout  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:orientation="horizontal"  >  <SeekBar   android:layout_width="wrap_content"   android:layout_height="wrap_content"   android:id="@+id/seekBar"   android:layout_weight="1" />  <ImageButton   android:layout_width="wrap_content"   android:layout_height="wrap_content"   android:src="@android:drawable/ic_media_play"   android:onClick="isPlayOrPause"   /> </LinearLayout></LinearLayout>

//播放内存上的视频mediaPlayer.setDataSource(this, Uri.parse("file://mnt/sdcard/Movies/sister.mp4"));//准备(内存卡)mediaPlayer.prepare();//将媒体播放器捕捉的画面展示在SurfaceView 上mediaPlayer.setDisplay(sv_media_surface.getHolder());

public class MediaPlayActivity extends AppCompatActivity { private SeekBar seekBar; private MediaPlayer mediaPlayer; private SurfaceView sv_media_surface; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_media_play);  seekBar = (SeekBar) findViewById(R.id.seekBar);  sv_media_surface = (SurfaceView) findViewById(R.id.sv_media_surface);  seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {   @Override   public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {   }   @Override   public void onStartTrackingTouch(SeekBar seekBar) {   }   @Override   public void onStopTrackingTouch(SeekBar seekBar) {    //获取拖动结束后的位置    int progress=seekBar.getProgress();    //跳转到某个位置播放    mediaPlayer.seekTo(progress);   }  }); } public void isPlayOrPause(View view){  final ImageButton imageButton= (ImageButton) view;  if(mediaPlayer==null){//代表第一次播放音乐   //播放内存卡内的音频   mediaPlayer=new MediaPlayer();   //设置类型   mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);   //设置音源   try {    //播放内存上的视频    mediaPlayer.setDataSource(this, Uri.parse("file://mnt/sdcard/Movies/sister.mp4"));    //准备(内存卡)    mediaPlayer.prepare();    //将媒体播放器捕捉的画面展示在SurfaceView 上    mediaPlayer.setDisplay(sv_media_surface.getHolder());    //必须在播放前加载音频文件(异步准备)//    mediaPlayer.prepareAsync();   } catch (IOException e) {    e.printStackTrace();   }   mediaPlayer.start();   //把图标改成暂停的图标（这里的暂停图标就是播放时的状态）   imageButton.setImageResource(android.R.drawable.ic_media_pause);   //获取音乐的总时长   int duration=mediaPlayer.getDuration();   //设置进度条的最大值为音乐的总时长   seekBar.setMax(duration);   new MyThread();  }else if(mediaPlayer.isPlaying()){//正在播放音乐   mediaPlayer.pause();   //把图标改成播放的图标（暂停状态）   imageButton.setImageResource(android.R.drawable.ic_media_play);  }else{   mediaPlayer.start();   imageButton.setImageResource(android.R.drawable.ic_media_pause);  } } class MyThread extends Thread{  @Override  public void run() {   super.run();   while(seekBar.getProgress()<seekBar.getMax()){    //获取当前音乐播放的位置    int currentPosition=mediaPlayer.getCurrentPosition();    //让进度条跟着时间走    seekBar.setProgress(currentPosition);   }  } }}

 <VideoView  android:layout_width="match_parent"  android:layout_height="300dp"  android:id="@+id/vv_main_vedio"  />

public class VedioActivity extends AppCompatActivity { private VideoView vv_main_vedio; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_vedio);  vv_main_vedio = (VideoView) findViewById(R.id.vv_main_vedio);  //给videoView设置播放来源  vv_main_vedio.setVideoPath("file://mnt/sdcard/Movies/sister.mp4");  //实例化媒体控制器  MediaController mediaController=new MediaController(this);  //给activity_vedio设置控制器  vv_main_vedio.setMediaController(mediaController);  mediaController.setMediaPlayer(vv_main_vedio); }}