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iOS之侧滑返回无需第三方，只需在自己的BaseNavController添加大概20行代码即可

百家作者：iOS开发 2018-01-09 11:15:09

点击上方“iOS开发”，选择“置顶公众号”

关键时刻，第一时间送达！

闲时多研究研究代码或者多多封装一些常用的类，对自己有利而无害，作为一个程序员，我觉得只要多看，多敲，多琢磨，慢慢滴你也就会成为大牛。

效果图

实现步骤：

1、viewDidLoad需要做的事情

self.delegate = self;

__weak typeof(self) weakSelf = self;

if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {

self.interactivePopGestureRecognizer.delegate = weakSelf;
}

2、实现UIGestureRecognizerDelegate代理中的方法

-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
if (self.navigationController.viewControllers.count == 1) {
return NO;
}else{
return YES;
}
}

3、实现UINavigationControllerDelegate代理中的方法

1.实现didShowViewController方法

- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{

if ([navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
navigationController.interactivePopGestureRecognizer.enabled = YES;
}
//使navigationcontroller中第一个控制器不响应右滑pop手势
if (navigationController.viewControllers.count == 1) {
navigationController.interactivePopGestureRecognizer.enabled = NO;
navigationController.interactivePopGestureRecognizer.delegate = nil;
}
}

2.此方法中拦截所有push 进来的控制器

-(void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{
if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.interactivePopGestureRecognizer.enabled = NO;
}
[super pushViewController:viewController animated:animated];
}