我知道了.我必须将其添加到我的DetailViewController

I figured it out. I had to add this to my DetailViewController

id savedGestureRecognizerDelegate1;
id savedGestureRecognizerDelegate2;

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        savedGestureRecognizerDelegate1 = self.navigationController.interactivePopGestureRecognizer.delegate;
        self.navigationController.interactivePopGestureRecognizer.delegate = self;
    }
    if ([self.navigationController.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        savedGestureRecognizerDelegate2 = self.navigationController.navigationController.interactivePopGestureRecognizer.delegate;
        self.navigationController.navigationController.interactivePopGestureRecognizer.delegate = self;
    }
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.navigationController.interactivePopGestureRecognizer.delegate = savedGestureRecognizerDelegate1;
    }
    if ([self.navigationController.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.navigationController.navigationController.interactivePopGestureRecognizer.delegate = savedGestureRecognizerDelegate2;
    }
}

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
    if (gestureRecognizer == self.navigationController.interactivePopGestureRecognizer || gestureRecognizer == self.navigationController.navigationController.interactivePopGestureRecognizer) {
        return NO;
    }
    return YES;
}

这是因为拆分视图控制器中有两个导航控制器.保存的手势识别器委托是由于此.

This is because there's two navigation controllers in a split view controller. The saved gesture recognizer delegate is because of this.