Get the Identifier of the current tab - iphone
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25-06-2021 - |
题
Probably a simple question, but I'm having a hellofa time finding a solution to it.
I need to find the identifier of the current tab in a tabbarcontroller and use it in a conditional to run a method.
how do I find this?
if (self.tabbarcontroller.identifier == @"My identifier") {
// do some method
} else {
// do the default method
}
解决方案
UIWindow *window = [[UIApplication sharedApplication] keyWindow];
UITabBarController *tabBarController = (UITabBarController*) window.rootViewController;
UIViewController *selectedVC = tabBarController.selectedViewController;
if ([selectedVC.identifier isEqualToString:@"anIdentifier"])
{
// Do something
} else {
// Do something else
}
You can set the identifier of a ViewController in your storyboard
其他提示
Check out the following code. Also make sure that the delegate for the UITabBar is correct pointing to the view controller, in this case FirstViewController.
**FirstViewController.h****
@interface FirstViewController : UIViewController<UITabBarDelegate>
**FirstViewController.m:**
- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item
{
NSLog(@"%@",[item tag]);
}
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