uitabbarcontroller

问题 I am wondering if there is a way to add an additional UITabBarItem to my exisiting UITabBarController . It doesn't need to be in runtime. All I want to do is when hitting this button I want to presentModalViewController: over my actually visible ViewController, which should either be the TabBarController or its controllers. Hopefully this is clear enough, if not, feel free to ask. 回答1: As a result of my research you cannot add a UITabBarItem to a UITabBar that is managed by a

问题 I am using JASidePanels to have the same layout as Facebook but there is some limitation and I want you to help me to : Add a right button in the navigation controller of the center view controller Change the center View to a different view after a button press in a different view controller From left or right side tell the center view controller to push a view From left or right side go to a view inside tabbar view controller here is my implementation inside MainAppDelegate : /* tabbar views

问题 I want to customize the look and feel of the tab bar of a UITabBarController. I want to change the colors, the way the icon looks when they are selected, and also, most important of all, I want to reduce the size of the custom toolbar. My approaches for this and the hurdles in it are: A) The first solution which came to my mind was to create my own viewController which will act like a UITabBarController with buttons in the bottom and add this viewController to the window. Once when user taps

问题 I'm wondering if there's a way (preferably an easy one) to add a view under the tab bar, like shown on the attached picture, so that it stays there when I switch between tabs and when new view controllers are pushed/popped on each tab. I have subclassed UITabBarController as "MainTabController" and set is as the custom class for the Main Tab Bar Controller Scene in my storyboard. Then in MainTabController's viewDidLoad I move the tabBar up and add the red subview. So far so good, but the main

问题 I'm currently working on an update to one of my apps and I have come across a very strange issue to do with UITabBarController. In my storyboard I have about 8 view controllers and in my UITabBarController subclass I add another 4 view controllers that are loaded programmatically. Most of these views need to have to UINavigationController to keep consistency when rotating as some views come out from the "More" tab into the main bar, in order to do this I have embeded them in a

问题 I have a setup where I am presenting a UIPickerViewController (modally) and then some more controllers get pushed on the stack for image editing. If I hit the back button and get to the root view controller , then hit another tab, the app crashes. This is the crash message: -[PostPhotoViewController respondsToSelector:]: message sent to deallocated instance 0x19b16a60 I ran Zombies instruments and it looks like the last View Controller (PostPhotoViewController) that was on the stack is

问题 I'm having a Tabbarcontroller and in the first tabview I'm having a tableviewcontroller. Now the last row is half visible the rest is underneath the tabbarcontroller. I've unchecked extend edges in the interface builder of my tabbar controller but nothing changes. I also tried this in my tableview controller: self.edgesForExtendedLayout = UIRectEdgeNone; But still the last row is half underneath the tabbar. Someone an idea how I can solve this? 回答1: Try this inside viewDidLoad method - (void

问题 I have an application with based of UITabBarController , and inside one of the tabs I have UITableViewController to display "products", till here everything is working perfectly. Now I want when clicking one of the cells inside the UITableViewController to open a UINavigationController to display UIViewController with details of that product. I think the application hierarchy should be like the following: UITabBarController (BASE) Level-1 | |___ UITableViewController (PRODUCTS) Level-2 | |___

问题 In my iPhone App, there are two UIViewControllers; both are embedded in a UITabBarController. However, when the TabBarController is tapped, and the VC's switch, the VC on screen uploads data to NSUserDefaults and then the VC that get switched to, fetches that data from NSUserDefaults. What I currently do is upload data in viewWillDisappear of the first VC and then fetch it in viewWillAppear of the second VC. the problem is that viewWillAppear of the VC that is about to get put on screen is

问题 I am trying to show a UIImagePickerController in a UIViewController inside a UITabBarController SourceType Camera MediaType kUTTypeMovie There's no issue presenting the UIImagePickerController, but when dismissed the TabBar moves down half the height, it only happens sometimes... other it dismisses perfectly. override func viewDidLoad() { var test: UIButton = UIButton(frame:CGRectMake(140, 200, 100, 100)) test.backgroundColor = UIColor.redColor() test.addTarget(self, action:"presentCamera",