Android multimedia tutorial: Four ways to play videos

  Uri uri = ("/storage/emulated/0/DCIM/Camera/20170521_200117.mp4");  
 //Calling the system's own player  Intent intent = new Intent(Intent.ACTION_VIEW); 
  (uri, "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4"); 
  startActivity(intent);

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
 xmlns:andro
 xmlns:tools="/tools"
 android:
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <VideoView
  android:
  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) {
  (savedInstanceState);
// requestWindowFeature(Window.FEATURE_NO_TITLE); // Remove title// setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); //Set full screen// getWindow().addFlags(.FLAG_KEEP_SCREEN_ON); //Set the screen always on  setContentView(.activity_video_play_by_vv);
  mVideoView = (VideoView) findViewById(.video_view);

  init();
 }

 private void init() {

  String path = "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4";

  Uri uri = (path);

  (path);

  ();
  ();

 }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
 xmlns:andro
 xmlns:tools="/tools"
 android:
 android:layout_width="match_parent"
 android:layout_height="match_parent">
 <SurfaceView
  android:
  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:
   android:text="stop"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>
  <Button
   android:
   android:text="play"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>
  <Button
   android:
   android:text="pasue"
   android:layout_weight="1"
   android:layout_width="0dp"
   android:layout_height="match_parent"/>

 </LinearLayout>
</RelativeLayout>

public class VideoPlayBySurActivity extends AppCompatActivity implements  {

 private SurfaceView mSurfaceView;
 private MediaPlayer mMediaPlayer;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  (savedInstanceState);
  setContentView(.activity_video_play_by_sur);
  mSurfaceView = (SurfaceView) findViewById(.surface_view);
  findViewById().setOnClickListener(this);
  findViewById().setOnClickListener(this);

  findViewById().setOnClickListener(this);

  init();
 }

 private void init() {
  mMediaPlayer = new MediaPlayer();

  ().addCallback(new () {
   @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 (()){
   case :
    stop();
    break;
   case :
    if(!()){
     play();
    }
    break;
   case :
    pasue();
    break;

  }
 }


 public void stop(){
  if(()){
   ();
  }
 }

 public void pasue(){
  if(()){
   ();
  }else{
   ();
  }
 }

 public void play(){

  String path = "/storage/emulated/0/DCIM/Camera/20170521_200117.mp4";
  try {
   ();
   (AudioManager.STREAM_MUSIC);
   //Set the videos to be played   (this, (path));
   //Output the video to SurfaceView   (());
   ();
   ();

  } catch (IOException e) {
   ();
  }
 }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
 xmlns:andro
 xmlns:tools="/tools"
 android:
 android:layout_width="match_parent"
 android:layout_height="match_parent">


 <TextureView
  android:
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"/>

 <ImageView
  android:
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:src="@drawable/all_darkbackground"/>
</RelativeLayout>

public class VideoPlayByTextrueViewActivity extends AppCompatActivity implements , ,  {

 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) {
  (savedInstanceState);
  setContentView(.activity_video_play_by_textrue_view);

  mTextureView = (TextureView) findViewById(.texture_view);

  mImageVideo = (ImageView) findViewById(.video_image);

  init();
 }

 private void init() {

  (new () {
   @Override
   public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
    mSurface = new Surface(surfaceTexture);

    ("tag", "---- onSurfaceTextureAvailable");

    play();
   }

   @Override
   public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
    ("tag", "---- onSurfaceTextureSizeChanged");
   }

   @Override
   public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
    mTextureView=null;
    mSurface=null;
    ();
    ();
    return false;
   }

   @Override
   public void onSurfaceTextureUpdated(SurfaceTexture surface) {

   }
  });


 }



 public void play(){


  mMediaPlayer = new MediaPlayer();

  try {
   (getApplicationContext(), (path));
   (mSurface);
   (AudioManager.STREAM_MUSIC);

   (this);
   (this);
   (this);

   ();

  } catch (IOException e) {
   ();
  }

 }

 @Override
 public void onPrepared(MediaPlayer mp) {

  ();
  ();
 }

 @Override
 public boolean onInfo(MediaPlayer mp, int what, int extra) {
  return false;
 }

 @Override
 public void onBufferingUpdate(MediaPlayer mp, int percent) {

 }
}