获取当前屏幕显示的viewcontroller

最新推荐文章于 2021-08-23 00:05:14 发布

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最新推荐文章于 2021-08-23 00:05:14 发布

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原文链接：http://www.cnblogs.com/zhizunbao/p/5507678.html

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 1 //获取当前屏幕显示的viewcontroller
 2 - (UIViewController *)getCurrentVC
 3 {
 4     UIViewController *result = nil;
 5     
 6     UIWindow * window = [[UIApplication sharedApplication] keyWindow];
 7     if (window.windowLevel != UIWindowLevelNormal)
 8     {
 9         NSArray *windows = [[UIApplication sharedApplication] windows];
10         for(UIWindow * tmpWin in windows)
11         {
12             if (tmpWin.windowLevel == UIWindowLevelNormal)
13             {
14                 window = tmpWin;
15                 break;
16             }
17         }
18     }
19     
20     UIView *frontView = [[window subviews] objectAtIndex:0];
21     id nextResponder = [frontView nextResponder];
22     
23     if ([nextResponder isKindOfClass:[UIViewController class]])
24         result = nextResponder;
25     else
26         result = window.rootViewController;
27     
28     return result;
29 }