IOS -擷取當前視圖的Controller

來源:互聯網
上載者:User

IOS -擷取當前視圖的Controller
擷取當前視圖的TopViewController

 AppDelegate *appdelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;    UIViewController* topViewController = appdelegate.baseTabBarController.navigationController.topViewController;    NSLog(@"%@",topViewController);     if ([topViewController isKindOfClass:[ HomeViewController class]]) {     }
擷取當前視圖的RootViewController(Nav層級)
-(UIViewController *)getCurrentRootViewController {    UIViewController *result;    // Try to find the root view controller programmically    // Find the top window (that is not an alert view or other window)    UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow];    if (topWindow.windowLevel != UIWindowLevelNormal)    {        NSArray *windows = [[UIApplication sharedApplication] windows];        for(topWindow in windows)        {            if (topWindow.windowLevel == UIWindowLevelNormal)                break;        }    }    UIView *rootView = [[topWindow subviews] objectAtIndex:0];    id nextResponder = [rootView nextResponder];    if ([nextResponder isKindOfClass:[UIViewController class]])        result = nextResponder;    else if ([topWindow respondsToSelector:@selector(rootViewController)] && topWindow.rootViewController != nil)        result = topWindow.rootViewController;    else        NSAssert(NO, @"ShareKit: Could not find a root view controller.  You can assign one manually by calling [[SHK currentHelper] setRootViewController:YOURROOTVIEWCONTROLLER].");    return result;}

相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.