iOS UI进阶-6.0 手势
2015-12-20 10:20 jiangys 阅读(382) 评论(0) 编辑 收藏 举报给每个页面添加手势,只需要统一设置不是根控制器的页面,都增加手势。需要自定义导航控制器
1.继承代理
@interface BSNavigationController ()<UIGestureRecognizerDelegate>
2.设置代理
- (void)viewDidLoad { [super viewDidLoad]; // 设置pop手势代理 self.interactivePopGestureRecognizer.delegate = self; }
3.实现代理
#pragma mark - <UIGestureRecognizerDelegate> /** * push进来的控制器大于1个,手势有效 */ - (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{ return self.viewControllers.count > 1; }
在开发过程中,经常会用到,需要关闭某个页面的手势返回功能。
// 禁用返回手势 - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; // 禁用 返回手势 if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) { self.navigationController.interactivePopGestureRecognizer.enabled = NO; } } // 开启手势 - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; // 开启手势 if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) { self.navigationController.interactivePopGestureRecognizer.enabled = YES; } } // 导航栏返回 - (void)blackBtnClick { // 开启手势,有时只在(void)viewWillDisappear:(BOOL)animated开启,该根栏目下所有的手势都会失效 if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) { self.navigationController.interactivePopGestureRecognizer.enabled = YES; } [self.navigationController popToRootViewControllerAnimated:YES]; }
参考网站:http://blog.csdn.net/jasonblog/article/details/28282147