private void set_sizes() {
int button_width =
(((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getWidth())
/ 3;
int height =
((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getHeight();
LinearLayout ll1 = (LinearLayout) findViewById(R.id.LL_buttons_first);
ll1.setMinimumHeight(height / 3);
LinearLayout ll2 = (LinearLayout) findViewById(R.id.LL_buttons_second);
ll2.setMinimumHeight(height / 3);
button_rewind.setWidth(button_width);
button_foward.setWidth(button_width);
button_stop.setWidth(button_width);
button_mute.setWidth(button_width);
button_quit.setWidth(button_width);
button_fullscreen.setWidth(button_width);
button_playpause.setWidth(button_width);
}
