问题记录:在做了部分页面的转场动画之后,返回手势不灵了,快速连续返回的话会卡住,App退到后台再重新激活之后页面不卡了,但是UI错乱.
解决方案:
1. 在UINavigationController子类实现代理UIGestureRecognizerDelegate,并在viewDidLoad方法中增加代理设置:
- (void)viewDidLoad { [super viewDidLoad]; self.interactivePopGestureRecognizer.delegate = self; }
2. 重写UINavigationController的push方法,在方法中关闭手势:
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated { if (self.viewControllers.count > 0) { viewController.hidesBottomBarWhenPushed = YES; } // 为了解决部分页面加了转场动画手势返回卡死的bug // 在UINavigationController代理方法didShowViewController中设置enable = YES if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) { self.interactivePopGestureRecognizer.enabled = NO; } [super pushViewController:viewController animated:animated]; }
3. 在UINavigationControllerDelegate代理类中实现navigationController:didShowViewController:animated:方法:
- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated { // 为了解决手势返回卡住的bug // 在NavigationController中重写push方法禁用返回手势,此处打开 if ([navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) { navigationController.interactivePopGestureRecognizer.enabled = YES; } }
原文：https://www.cnblogs.com/GaryZhang/p/11460747.html