-------------獲取當前view的控制器--------------

@interface UIView (CurrentController)

-(UIViewController *)getCurrentViewController;

@end

#import "UIView+CurrentController.h"

@implementation UIView (CurrentController)

-(UIViewController *)getCurrentViewController{

    UIResponder *next = [self nextResponder];

do {if ([next isKindOfClass:[UIViewController class]]) {

return (UIViewController *)next;

        }

        next = [next nextResponder];

    } while (next !=nil);

    returnnil;

}

@end

-----------------獲取當前應用的tabbarController-----------------

在APPdelegate中獲取tabbarcontroller；

LYMainTabBarController *mt=(LYMainTabBarController *)[UIApplication sharedApplication].delegate.window.rootViewController;   NSLog(@"---在APP的類gate中獲取tabbarController---%@",mt.viewControllers[2].tabBarItem.title);</span>  
 

在控制器中獲取tabbarController的viewcontroler，

[self.navigationController.tabBarController.viewControllers[2].tabBarItemsetBadgeValue:@"1"];

-----------獲取navigationController層級中的viewcongtroller---------------

方法一：

for (UIViewController *controllerinself.navigationController.viewControllers) {

if ([controllerisKindOfClass

GetMoneyVC *revise =(GetMoneyVC *)controller;

            [self.navigationControllerpopToViewController:reviseanimated:YES];

        }

    }

方法二：

rootViewcontroller是陣列中的第0個元素；下一級就是第一個元素，一次類推

UIViewController *viewCtl = self.navigationController.viewControllers[1];

    [self.navigationControllerpopToViewController:viewCtl animated:YES];