uitabbarcontroller

问题 My app has a view controller hierarchy set up like this: UITabBarController | UINavigationController | | | UIViewController | UINavigationController | UIViewController All of my view controllers that are within this hierarchy override the method: - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation and return YES - therefore the view controller should be able to rotate to any rotation - even upside down. However, within this setup none of the view

问题 In my application, i have added UITabBarController in "Storyborad". But now i want to add UITabBarItem programmatically. Let's say there are 5 buttons and when ever user click on that button my UITabBarController is called. There are total 5 tab in "tabbar". e.g: Tab name:item1,item2,item3,item4,item5. Button name:item1,item2,item3,item4,item5. Let's say user click on item1 button, UITabBarcontroller is called. Now user should not be able to see that item1 tab in "tabbarcontroller", he should

问题 Hide tabbar in IOS7 shows informal behaviour When I use self.tabBarController.tabBar.hidden = YES; Above code hides the tabBar, but my view from bottom does not remain interactive But when I uses this just before pushing viewController in navigation someViewController.hidesBottomBarWhenPushed = YES [self.navigationController pushViewController:someViewController animated:YES]; It hides tabbar as well as view from bottom is also interactive. but problem in this case is, when we pop

问题 I have an application that has a UITabBarController in a UINavigationController . (The UITabBarController is not the "Initial View Controller" for the story board.) In the initial UIViewController , I have a UISearchController which allows for content to be searched from a remote source. This worked fine until I added the UITabBarController . Now, the search bar displays fine in the default state, but once you start typing inside of it, it gets pushed up past the top edge of the view. I

问题 I'd like to do something when a particular tab appears. Meaning, the user has clicked the tab view's tab button. viewDidAppear doesn't fire when this happens. How else can I hook into the tab click event? 回答1: You can implement this - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController{ [viewController viewDidAppear:YES]; } in your Tab Bar Delegate, so your viewDidAppear method will be called properly. 回答2: Implement

问题 In my iOS app, I have a UITabBarController , and its viewControllers list looks like [vc1, vc2] , which are of class MyVC1 and MyVC2 respectively, both of which subclass UIViewController . MyVC1 overrides viewWillAppear , and the overwritten version prints something so I know when it is called. (This is to isolate a larger problem I had, which was a view not appearing.) My issue is that when the app first starts up and vc1 is the selected tab, nothing is printed, meaning its viewWillAppear is

问题 What I'm doing: Using a 'launch storyboard'. It's quite simple, and contains a default UITabBarController. I've set the tab bar's 'tintColor' to red in the launch storyboard, as well as in my app. I'm using Xcode 7, iOS 9. What doesn't work: The launch screen loads the tab bar using the default blue iOS tint color...! Then after loading, the tint color switches to red when the launch screen storyboard is replaced. How on earth are you meant to set a tab bar's tint color in a storyboard? Demo

问题 My UI structure is as follow: UITabBarController ( TBC ) -> UINavigationController ( NC ) -> UITableViewController ( TVC ) (for the simplicity of the example lets say the TBC has only one controller on its viewControllers array - the NC ) My TVC has UISearchBar as its table header, and when the TVC appear I hide the search bar beneath the NC navigation bar by settings the table view content offset. When user tap a cell in the TVC another view controller is pushed ( VC ) and hides the tab bar

问题 This question already has an answer here : How To Customize 'More' Button of UITabBarController? (1 answer) Closed 3 years ago . I know how to add UITabBarController and how it is used, I already done it. My Problem is that I am not able to add image on 'more' tab of UITabBarController . I know there are many similar questions as mine but did not help me. After googling I found that we can't add images on 'More' tab in UITabBarController Because more tab is automatically displayed by

问题 The situation: when I press a button in rentViewController, it pops up a tableviewcontroller. If a specific cell has been pressed, it sends data to rentViewController. In order to send data from one view controller to another I needed the code let rentViewController : RentViewController = self.presentingViewController as! RentViewController <- here is where the error shows up so that tableviewcontroller could get access to the variables and functions from rentviewcontroller. I'm using self