自定义navigationItem.leftBarButtonItem后,系统默认的手势滑动失效解决方案

 

 

    自定义navigationItem.leftBarButtonItem后,系统默认的手势滑动失效解决方案

- (void)viewDidLoad {
    [super viewDidLoad];
    __weak typeof (self) weakSelf = self;
    if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.interactivePopGestureRecognizer.delegate = weakSelf;
    }
}
#pragma mark - UIGestureRecognizerDelegate
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    if (self.viewControllers.count < 3) {
        return NO;
    }
    return YES;
}