uinavigationcontroller

问题 Is there any way to make the default navigation bar of an UINavigationController display at the bottom instead of the top? I know that there is an UIToolbar that can be displayed at the bottom, but that one is specific to each view and does not carry the "back" button. 回答1: If you create your view using a NIB, then it is rather simple - select navigation bar in attributes->bottom bar. If not then you should access navigation bar directly and change its coordinates. In your view controller:

问题 I have created an iPad app containing a popover view embedded in a navigation controller. I like using Storyboard as much as possible, and setting the "Use Explicit Size" in Xcode give me the correct size of my popover on the iPad. But it does not resize the UINavigationController view and its embedded UIViewControllers when viewing the storyboard in Xcode. This is quite annoying as the size of my view in Xcode does not correspond to the actual size of the popover. So, my problem is not

问题 How to push a view using a button in a navigation controller? I tried to follow this example: http://www.cimgf.com/2009/06/25/uitabbarcontroller-with-uinavigationcontroller-using-interface-builder/ This is exactly what I need, I have an UITabBarController with 4 tabs and one of them is an UINavigationController . I want to push that view containing the navigation controller from the first view- which is a simple UIView . It doesn't work, I tried also with a programmatically created button and

问题 I have an iPhone application that I am currently converting to a universal binary to work with the iPad. I have successfully implemented everything I need in terms of layout so that full landscape functionality is now supported in my app (previously I primarily used portrait mode to display content). But, I have one strange problem, and it ONLY occurs in landscape mode: when I push a view controller onto the stack, it takes two taps on the back button to return to the previous view controller

问题 I have an iPhone application that I am currently converting to a universal binary to work with the iPad. I have successfully implemented everything I need in terms of layout so that full landscape functionality is now supported in my app (previously I primarily used portrait mode to display content). But, I have one strange problem, and it ONLY occurs in landscape mode: when I push a view controller onto the stack, it takes two taps on the back button to return to the previous view controller

问题 I have a navigation controller which have a few view controllers. I need to support all orientations for all view controllers except one special view controller which only supports landscape. This special view controller appears in the middle of the navigation stack. I have done quite a lot of research but couldn't find any good solution. Here are the links that I have read and tried. http://www.iphonedevsdk.com/forum/iphone-sdk-development/3219-force-landscape-mode-one-view.html#post60435

问题 I have an application with a tab bar controller and each view contains a navigation controller. My MainWindow looks as follows: Image here http://www.freeimagehosting.net/image.php?7bc867a594.png Everything works fine as it is but I noticed a problem when pushing a details view to the navigation controller. In the didSelectRowAtIndexPath for a tableviewcontroller that belongs to the tab bar controller (the one called Latest in the image) I am doing this: - (void)tableView:(UITableView *

问题 So I am doing some custom animations on my navigationcontroller and the way it pushes and pops the viewControllers. Everything runs smooth. As soon as I add the following code (In a subclass of UINavigationController ), I face a huge performance hit. After adding a shadow all animations become very laggy. Is this expected or am I doing something wrong in the code? // This code gets called once during NavigationController initialization. [self.view setClipsToBounds:NO]; [self.view.layer

问题 The issue: I have a UINavigationController as as subview of UIWindow, a rootViewController class and a custom MyViewController class. The following steps will get a Exc_Bad_Access, 100% reproducible.: [myNaviationController pushViewController:myViewController_1stInstance animated:YES]; [myNaviationController pushViewController:myViewController_2ndInstance animated:YES]; Hit the left back tapBarItem twice (pop out two of the myViewController instances) to show the rootViewController. After a

问题 So, I've given up on trying to solve an issue I've been having where my controller will rotate without calling my shouldAutorotateToInterfaceOrientation: method, because everyone for a few years has been stating it as an iOS bug. Now I need to just force rotate my UIViewController . Is there a way I can do that, since the UIDevice instance method has been removed now and I don't know what to do to force rotate my controller. 回答1: I'm not sure which UIDevice method that you are saying has been