<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@android:color/black">

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

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

  </LinearLayout>

  <TextView
    android:id="@+id/path_tv"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textColor="@android:color/white"
    android:textSize="13sp" />

</RelativeLayout>

  private static String mMP4Path;
  VideoView mVideoView;
  MediaController mMediaController;

  @Override
  public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    TextView pathTv = view.findViewById(R.id.path_tv);
    mVideoView = view.findViewById(R.id.video_view);
    mMediaController = new MediaController(getContext());
    if (!TextUtils.isEmpty(mMP4Path)) {
      mVideoView.setVideoPath(mMP4Path);
      mVideoView.setMediaController(mMediaController);
      mVideoView.seekTo(0);
      mVideoView.requestFocus();
      mVideoView.start();
      pathTv.setText(mMP4Path);
    }
  }