Android
VideoView

VideoView Crear

Encuentra VideoView en Actividad y agrega video en él.

VideoView videoView = (VideoView) .findViewById(R.id.videoView);
videoView.setVideoPath(pathToVideo);

Comience a reproducir el video.

videoView.start();

Definir VideoView en el archivo de diseño XML.

<VideoView
    android:id="@+id/videoView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center" />

Reproducir video desde la URL con el uso de VideoView

 videoView.setVideoURI(Uri.parse("http://example.com/examplevideo.mp4"));
 videoView.requestFocus();

 videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
      @Override
      public void onCompletion(MediaPlayer mediaPlayer) {
      }
 });

 videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
     @Override
     public void onPrepared(MediaPlayer mediaPlayer) {
          videoView.start();
          mediaPlayer.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener() {
                @Override
                public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {
                      MediaController mediaController = new MediaController(ActivityName.this);
                      videoView.setMediaController(mediaController);
                      mediaController.setAnchorView(videoView);
                }
          });
     }
 });

 videoView.setOnErrorListener(new MediaPlayer.OnErrorListener() {
       @Override
       public boolean onError(MediaPlayer mediaPlayer, int i, int i1) {
            return false;
       }
 });