iOS 一级页面禁止侧滑，多级（二级及以上）页面开启系统侧滑

情况：页面A=>B=>C  继承BaseVC,A禁止侧滑，B、C开启

在baseVC处理

一：在viewDidLoad判断是否是非一级页面，开启系统侧滑

if (self != [self.navigationController.viewControllers firstObject]) {//非一级页开启侧滑

        //开启系统自带侧滑返回

       if([self.navigationControllerrespondsToSelector:@selector(interactivePopGestureRecognizer)]) {

               self.navigationController.interactivePopGestureRecognizer.delegate = (id)self;

        }

}

二：在viewDidAppear 和viewDidDisappear进行一级页面A的关闭开启侧滑处理

- (void)viewDidAppear:(BOOL)animated

{

      [superviewDidAppear:animated];

     //禁止页面左侧滑动返回，注意，如果仅仅需要禁止此单个页面返回，还需要在viewWillDisapper下开放侧滑权限

     // 禁用返回手势

    if (self == [self.navigationController.viewControllers firstObject]) {//一级页

        if([self.navigationControllerrespondsToSelector:@selector(interactivePopGestureRecognizer)]) {

            self.navigationController.interactivePopGestureRecognizer.enabled = NO;

        }

     }

}

- (void)viewDidDisappear:(BOOL)animated {

    [superviewDidDisappear:animated];

    // 开启返回手势

    if (self == [self.navigationController.viewControllers firstObject]) {//一级页

        if([self.navigationControllerrespondsToSelector:@selector(interactivePopGestureRecognizer)]) {

            self.navigationController.interactivePopGestureRecognizer.enabled = YES;

        }

    }

}