手机直播源码，导航栏侧滑手势启用/禁用弃用正确姿势

手机直播源码，导航栏侧滑手势启用/禁用弃用正确姿势

一般我们如此设置手势侧滑(1.先建一个NAV的子类.然后重写Push方法)

 

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<br>- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {<br>    if (self.viewControllers.count >= 1) {<br>        viewController.hidesBottomBarWhenPushed = YES; <br>        [super pushViewController:viewController animated:animated];<br>        viewController.navigationController.interactivePopGestureRecognizer.enabled = YES;<br>    } else {<br>        [super pushViewController:viewController animated:animated];<br>    }<br>}<br>

​

因为count = 0的话没有上一级.这时候如果还允许侧滑就崩溃.然而如果我们自定义了导航栏的leftbarbutonitem.那么侧滑手势还是失效.

 

这是因为我们的viewController.navigationController.interactivePopGestureRecognizer.delegate被重置了.所以应该修改为如下代码

 

1

<br>- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {<br>    if (self.viewControllers.count >= 1) {<br>        viewController.hidesBottomBarWhenPushed = YES; <br>        [super pushViewController:viewController animated:animated];<br>        viewController.navigationController.interactivePopGestureRecognizer.enabled = YES;<br>        viewController.navigationController.interactivePopGestureRecognizer.delegate = nil;<br>    } else {<br>        [super pushViewController:viewController animated:animated];<br>    }<br>}

 

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