Setting badge value in UITabBarItem in UIViewController

问题

I am adding UITabBarController to the window, and setting the viewControllers property of the UITabBarController to the array of ViewControllers. If i am setting the badge value inside the viewController then its working fine. self.tabBarItem.badgeValue = @"3";

But if i am setting the viewControllers property of the UITabBarController to the array of navigation controllers which is having view controller as the rootviewcontroller, then its not setting the badge value.

Any suggestions ??

Thanks

回答1:

Yes, i got the answer.

[[self navigationController] tabBarItem].badgeValue = @"3";

回答2:

Or this:

[[self.tabBarController.tabBar.items objectAtIndex:2] setBadgeValue:[NSString stringWithFormat:@"%d",[UIApplication sharedApplication].applicationIconBadgeNumber]];

来源：https://stackoverflow.com/questions/4850540/setting-badge-value-in-uitabbaritem-in-uiviewcontroller