@interface OPAVoicePlateController -(void)didTapOnGlifView; @end %hook OPAVoicePlateController -(OPAVoicePlateController *)init{ OPAVoicePlateController *origself = %orig; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didTapOnGlifView) name:UIApplicationDidBecomeActiveNotification object:nil]; [self didTapOnGlifView]; return origself; } %end