uitabbarcontroller
how to get the event that switch tab menu on iphone
Implement UITabBarControllerDelegate e.g. in your app delegate’s applicationDidFinishLaunching – (void)applicationDidFinishLaunching:(UIApplication *)application { tabBarController.delegate = self; [window addSubview:tabBarController.view]; } Then implement either: – (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController; – (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController; The first method is called before the view switch and gives you a chance to ‘veto’ the view switch by returning NO The second … Read more
UITabBarController is possible to select the tab via code?
Use the selectedIndex property on the UITabBarController. More information can be found in the UITabBarController Class Reference. controller.selectedIndex = 4; or use [controller setSelectedIndex:4];
UITabBar(Controller) – Get index of tapped?
The answer depends on whether or not the UITabBar is managed by a UITabBarController or not. Case 1 – UITabBar is already handled by a UITabBarController Implement the UITabBarControllerDelegate protocol. Specifically the tabBarContoller:didSelectViewController: method. Set an instance of your class that implements the protocol as the delegate of the UITabBarController. – (void)tabBarController:(UITabBarController *)theTabBarController didSelectViewController:(UIViewController *)viewController … Read more
hidesBottomBarWhenPushed = NO not working?
This is an issue that has bugged me for a while, and I only just found a solution that works. The hidesBottomBarWhenPushed property is a very strange beast, and works in, to my mind, a counter-intuitive way. The problem with it is that when you push a new view controller (or pop back) the navigationController … Read more
Tab Bar covers TableView cells in iOS7
Try this for your CustomViewController: – (void)viewDidLoad { [super viewDidLoad]; UIEdgeInsets adjustForTabbarInsets = UIEdgeInsetsMake(0, 0, CGRectGetHeight(self.tabBarController.tabBar.frame), 0); self.scrollView.contentInset = adjustForTabbarInsets; self.scrollView.scrollIndicatorInsets = adjustForTabbarInsets; }
Determine whether UIView is visible to the user?
For anyone else that ends up here: To determine if a UIView is onscreen somewhere, rather than checking superview != nil, it is better to check if window != nil. In the former case, it is possible that the view has a superview but that the superview is not on screen: if (view.window != nil) … Read more