FireMonkey 안드로이드 화면 켜짐 유지

uses Androidapi.Helpers;

procedure SetSleep(aEnable:Boolean);
begin
    if aEnable then
      TAndroidHelper.Activity.getWindow.addFlags(TJWindowManager_LayoutParams.JavaClass.FLAG_KEEP_SCREEN_ON)
    else
      TAndroidHelper.Activity.getWindow.clearFlags(TJWindowManager_LayoutParams.JavaClass.FLAG_KEEP_SCREEN_ON);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
 SetSleep(True); // True = 적용 False = 해제	
end;