IOS 7 interactivePopGestureRecognizer正在冻结应用

当使用滑动手势时,我遇到类似的冻结界面问题.
在我的情况下,问题是在controller1.viewDidAppear我禁用滑动手势：self.navigationController.interactivePopGestureRecognizer.enabled = NO.所以当用户从contorller2开始刷卡时,控制器1.viewDidAppear被触发,手势被禁用.

我通过在controller1中设置self.navigationController.interactivePopGestureRecognizer.delegate = self并实现gestureRecognizerShouldBegin :,而不是禁用手势识别器来解决这个问题：

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    if ([self.navigationController respondsToSELEctor:@SELEctor(interactivePopGestureRecognizer)] &&
            gestureRecognizer == self.navigationController.interactivePopGestureRecognizer) {
        return NO;
    }
    return YES;
}