考虑到interactivePopGestureRecognizer也有delegate属性，替换默认的self.navigationController.interactivePopGestureRecognizer.delegate来配置右滑返回的表现也是可行的。在主ViewController中：
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationController.interactivePopGestureRecognizer.delegate = self;// 重新指定代理
}
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer { if (self.navigationController.viewControllers.count == 1) { // 关闭主界面的右滑返回 return NO; } else { return YES; } }