1 - (void)setupGetsInNav 2 { 3     UIGestureRecognizer *gesture = self.interactivePopGestureRecognizer; 4     gesture.enabled = NO; 5     UIView *gestureView = gesture.view; 6      7     UIPanGestureRecognizer *popRecognizer = [[UIPanGestureRecognizer alloc] init]; 8     popRecognizer.delegate = self; 9     popRecognizer.maximumNumberOfTouches = 1;10     [gestureView addGestureRecognizer:popRecognizer];11     /**12      *  获取系统手势的target数组13      */14     NSMutableArray *_targets = [gesture valueForKey:@"_targets"];15     /**16      *  获取它的唯一对象，我们知道它是一个叫UIGestureRecognizerTarget的私有类，它有一个属性叫_target17      */18     id gestureRecognizerTarget = [_targets firstObject];19     /**20      *  获取_target:_UINavigationInteractiveTransition，它有一个方法叫handleNavigationTransition:21      */22     id navigationInteractiveTransition = [gestureRecognizerTarget valueForKey:@"_target"];23     /**24      *  通过前面的打印，我们从控制台获取出来它的方法签名。25      */26     SEL handleTransition = NSSelectorFromString(@"handleNavigationTransition:");27     /**28      *  创建一个与系统一模一样的手势，我们只把它的类改为UIPanGestureRecognizer29      */30     [popRecognizer addTarget:navigationInteractiveTransition action:handleTransition];31 32 }

1 - (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {2     /**3      *  这里有两个条件不允许手势执行，1、当前控制器为根控制器；2、如果这个push、pop动画正在执行（私有属性）4      */5     return self.viewControllers.count != 1 && ![[self valueForKey:@"_isTransitioning"] boolValue];6 }

只需要在全局的导航控制器中添加上边代码即可