iphone – 如何在视图中的任何位置检测到点击?
发布时间:2020-12-14 18:56:25 所属栏目:百科 来源:网络整理
导读:我有一个我的应用程序的教程,它应该只在第一次打开应用程序时显示,并应点按以解除. 我正在viewDidLoad中初始化UITapGestureRecognizer: tapper_tut = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];tapper_tut
我有一个我的应用程序的教程,它应该只在第一次打开应用程序时显示,并应点按以解除.
我正在viewDidLoad中初始化UITapGestureRecognizer: tapper_tut = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)]; tapper_tut.cancelsTouchesInView = FALSE; [self.view addGestureRecognizer:tapper_tut]; 我有一个IBAction来检测点击并将教程设置为隐藏: - (IBAction)dismiss_tut{ if (????????????????) { _tutorial.hidden = YES; } } 但是我不知道在if语句条件中放什么,或者这是否是正确的方法来解决这个问题. 如何在水龙头上解雇UIImageView? 解决方法UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)]; [self.view addGestureRecognizer:gr]; // if not using ARC,you should [gr release]; // mySensitiveRect coords are in the coordinate system of self.view - (void)handleGesture:(UIGestureRecognizer *)gestureRecognizer { CGPoint p = [gestureRecognizer locationInView:self.view]; if (CGRectContainsPoint(mySensitiveRect,p)) { NSLog(@"got a tap in the region i care about"); } else { NSLog(@"got a tap,but not where i need it"); } } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |