iOS--badgeValue（角标）

//通知传值

NSString *badgeNum =[NSString stringWithFormat:@"%@",[getMsgNum valueForKey:@"object"]];

UIViewController *tController = [self.tabBarController.viewControllers objectAtIndex:3];

int badgeValue = [badgeNum intValue];

if (badgeValue >0) {

tController.tabBarItem.badgeValue = [NSString stringWithFormat:@"%d",badgeValue];

}else{

tController.tabBarItem.badgeValue = nil;

}

做下笔记，省得忘了O(∩_∩)O哈哈~