android videoview setup
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your layout xml file);
VideoView videoView = findViewById(R.id.your videoview id);
String videoPath = "android.resource://" + getPackageName() + "/" + R.raw.your video's name;
Uri uri = Uri.parse(videoPath);
videoView.setVideoURI(uri);
videoView.start();