Using both the answers previously given, here is a solution that will resume music after your video ends:
final boolean music_was_playing = ((AudioManager) getSystemService(Context.AUDIO_SERVICE)).isMusicActive();
VideoView vv_Video = (VideoView) findViewById(R.id.intro_video_view);
// play the intro video
vv_Video.setOnCompletionListener( new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer m) {
// resume music if it was playing cause our intro video just paused it temporarily
if (music_was_playing) {
Intent i = new Intent("com.android.music.musicservicecommand");
i.putExtra("command", "play");
sendBroadcast(i);
}
// go to main menu
startActivity(new Intent(IntroActivity.this, MainMenuActivity.class));
}
});