iOS侧滑笔记整理

设置侧滑返回

__weak JFNavigationController *weakSelf = self;
if([self respondsToSelector:@selector(interactivePopGestureRecognizer)]){
    //设置侧滑返回
    self.interactivePopGestureRecognizer.delegate = weakSelf;
}
self.delegate = weakSelf;

设置单个页面禁止侧滑返回

只设置 self.navigationController.interactivePopGestureRecognizer.enabled 为NO或者YES，不是特别好使，需要用下面这种方法。

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    //禁止侧滑返回
    if([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]){
            self.navigationController.interactivePopGestureRecognizer.delegate = self;
        }
}
- (void)viewWillDisappear:(BOOL)animated{
    [super viewWillDisappear:animated];
    //恢复侧滑返回
    if([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]){
            self.navigationController.interactivePopGestureRecognizer.delegate = nil;
            self.navigationController.interactivePopGestureRecognizer.enabled = YES;
        }
    
}

需要处理的坑

//自定义的NavigationController里实现如下代码，设置首页面不识别侧滑动作，否则侧滑了首页，虽然首页并不会被侧滑，但是想进入详情页的时候会点击没反应。
-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
    if(gestureRecognizer == self.interactivePopGestureRecognizer){
        if(self.viewControllers.count < 2 || self.visibleViewController == [self.viewControllers objectAtIndex:0]){
            return NO;
        }
    }
    return YES;
}