ios - interactivePopGestureRecognizer 干扰 UIScrollView

Question

我有一个 UIScrollView，其框架与包含的 View Controller 相同。

当 ScrollView 的缩放比例大于 1 时，从屏幕左侧 50% 开始从左向右滑动会导致 interactivePopGestureRecognizer 激活并关闭 View Controller 。这仅在设备横向时发生。纵向时效果很好。

是否需要任何特殊处理才能使此手势在 ScrollView 中正常工作？

Answer 1

1、将 interactivePopGestureRecognizer delegate 设置为 self (Custom UINavigationController)

self.interactivePopGestureRecognizer.delegate = self;

2、启用同时识别UIScrollView UIGestureRecognizer

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    if (self.interactivePopGestureRecognizer == gestureRecognizer) {
        if ([otherGestureRecognizer.view isKindOfClass:UIScrollView.class]) {
            UIScrollView *scrollView = (UIScrollView *)otherGestureRecognizer.view;
            if ((scrollView.contentSize.width > CGRectGetWidth(self.view.bounds) && scrollView.contentOffset.x == 0)) {
                return YES;
            }
        }
    }

    return NO;
}