ios7禁止默认划动返回

 self.navigationController.interactivePopGestureRecognizer.enabled = NO;

或

在使用以前先要判断是否ios7，否则会致使crash。而后建立一个本身的navigationController继承UINavigationController。以后还要设置UINavigationControllerDelegate，这样以上的方法才能触发。最后就判断要show出来的viewController是否须要支持划动返回了。

 

 

 

 - (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated

{

     if ([ self respondsToSelector : @selector (interactivePopGestureRecognizer)]) {

         if (viewController .class == [ MyViewController class ])

         {

             self .interactivePopGestureRecognizer .enabled = NO ;

         } else {

             self .interactivePopGestureRecognizer .enabled = YES ;

         }

     }

}