Android多媒体教程之播放视频的四种方法

  Uri uri = Uri.parse("/storage/emulated/0/DCIM/Camera/20170521_200117.mp4");   //调用系统自带的播放器   Intent intent = new Intent(Intent.ACTION_VIEW);   intent.setDataAndType(uri, "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4");   startActivity(intent);

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_video_play_by_vv" android:layout_width="match_parent" android:layout_height="match_parent"> <VideoView  android:id="@+id/video_view"  android:layout_width="wrap_content"  android:layout_height="wrap_content"/></RelativeLayout>

public class VideoPlayByVVActivity extends AppCompatActivity { private VideoView mVideoView; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);//  requestWindowFeature(Window.FEATURE_NO_TITLE); //去掉 title//  setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); //设置全屏//  getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); //设置屏幕常亮  setContentView(R.layout.activity_video_play_by_vv);  mVideoView = (VideoView) findViewById(R.id.video_view);  init(); } private void init() {  String path = "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4";  Uri uri = Uri.parse(path);  mVideoView.setVideoPath(path);  mVideoView.start();  mVideoView.requestFocus(); }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_video_play_by_sur" android:layout_width="match_parent" android:layout_height="match_parent"> <SurfaceView  android:id="@+id/surface_view"  android:layout_width="180dp"  android:layout_height="wrap_content"/> <LinearLayout  android:layout_alignParentBottom="true"  android:layout_width="match_parent"  android:layout_height="40dp">  <Button   android:id="@+id/stop"   android:text="stop"   android:layout_weight="1"   android:layout_width="0dp"   android:layout_height="match_parent"/>  <Button   android:id="@+id/play"   android:text="play"   android:layout_weight="1"   android:layout_width="0dp"   android:layout_height="match_parent"/>  <Button   android:id="@+id/pasue"   android:text="pasue"   android:layout_weight="1"   android:layout_width="0dp"   android:layout_height="match_parent"/> </LinearLayout></RelativeLayout>

public class VideoPlayBySurActivity extends AppCompatActivity implements View.OnClickListener { private SurfaceView mSurfaceView; private MediaPlayer mMediaPlayer; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_video_play_by_sur);  mSurfaceView = (SurfaceView) findViewById(R.id.surface_view);  findViewById(R.id.stop).setOnClickListener(this);  findViewById(R.id.pasue).setOnClickListener(this);  findViewById(R.id.play).setOnClickListener(this);  init(); } private void init() {  mMediaPlayer = new MediaPlayer();  mSurfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {   @Override   public void surfaceCreated(SurfaceHolder holder) {    play();   }   @Override   public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {   }   @Override   public void surfaceDestroyed(SurfaceHolder holder) {   }  }); } @Override public void onClick(View v) {  switch (v.getId()){   case R.id.stop:    stop();    break;   case R.id.play:    if(!mMediaPlayer.isPlaying()){     play();    }    break;   case R.id.pasue:    pasue();    break;  } } public void stop(){  if(mMediaPlayer.isPlaying()){   mMediaPlayer.stop();  } } public void pasue(){  if(mMediaPlayer.isPlaying()){   mMediaPlayer.pause();  }else{   mMediaPlayer.start();  } } public void play(){  String path = "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4";  try {   mMediaPlayer.reset();   mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);   //设置需要播放的视频   mMediaPlayer.setDataSource(this, Uri.parse(path));   //把视频画面输出到SurfaceView   mMediaPlayer.setDisplay(mSurfaceView.getHolder());   mMediaPlayer.prepare();   mMediaPlayer.start();  } catch (IOException e) {   e.printStackTrace();  } }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_video_play_by_textrue_view" android:layout_width="match_parent" android:layout_height="match_parent"> <TextureView  android:id="@+id/texture_view"  android:layout_width="wrap_content"  android:layout_height="wrap_content"/> <ImageView  android:id="@+id/video_image"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:src="@drawable/all_darkbackground"/></RelativeLayout>

public class VideoPlayByTextrueViewActivity extends AppCompatActivity implements MediaPlayer.OnPreparedListener, MediaPlayer.OnInfoListener, MediaPlayer.OnBufferingUpdateListener { private TextureView mTextureView; private ImageView mImageVideo; private Surface mSurface; private MediaPlayer mMediaPlayer; private static String path = "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4"; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_video_play_by_textrue_view);  mTextureView = (TextureView) findViewById(R.id.texture_view);  mImageVideo = (ImageView) findViewById(R.id.video_image);  init(); } private void init() {  mTextureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {   @Override   public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {    mSurface = new Surface(surfaceTexture);    Log.e("tag", "---- onSurfaceTextureAvailable");    play();   }   @Override   public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {    Log.e("tag", "---- onSurfaceTextureSizeChanged");   }   @Override   public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {    mTextureView=null;    mSurface=null;    mMediaPlayer.stop();    mMediaPlayer.release();    return false;   }   @Override   public void onSurfaceTextureUpdated(SurfaceTexture surface) {   }  }); } public void play(){  mMediaPlayer = new MediaPlayer();  try {   mMediaPlayer.setDataSource(getApplicationContext(), Uri.parse(path));   mMediaPlayer.setSurface(mSurface);   mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);   mMediaPlayer.setOnPreparedListener(this);   mMediaPlayer.setOnInfoListener(this);   mMediaPlayer.setOnBufferingUpdateListener(this);   mMediaPlayer.prepareAsync();  } catch (IOException e) {   e.printStackTrace();  } } @Override public void onPrepared(MediaPlayer mp) {  mImageVideo.setVisibility(View.GONE);  mMediaPlayer.start(); } @Override public boolean onInfo(MediaPlayer mp, int what, int extra) {  return false; } @Override public void onBufferingUpdate(MediaPlayer mp, int percent) { }}