public static Boolean isAppHidden(AppInfo appInfo,Set<String> appHidden){
  Boolean res=false;
  if (appHidden.contains(appInfo.toString())) {
    res=true;
  }
  return res;
}

public static Boolean isAppHidden ( AppInfo appInfo , Set < String > appHidden ) { Boolean res = false ; if ( appHidden . contains ( appInfo . toString ( ) ) ) { res = true ; } return res ; }
retrieve if an app is hidden
