uinavigationbar

I have an issue that I'm stuck on, but I have no idea why it even happens; If I push a detail controller on the stack, and I swipe back very quickly using the default left edge interactivePopGestureRecognizer , my parent/root view controller's UINavigationBar looks corrupt or something, almost like the built in iOS transition mechanism didn't have time to do it's job at resetting it after the detail view is gone. Also to clarify, everything in this 'corrupt' UINavigationBar is still touchable and everything on my parent/root view controller works perfectly. For people downvoting due to no

UINavigationBar的结构示意图如下所示：(ios7+) 不同的app，对界面的设计风格都不一样，只有精确了解UINavigationBar的结构图，才能很好的使用它 //config for UINavigationBar [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"transparentBg"] forBarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault]; //setShadowImage 需要和 setBackgroundImage 同时使用才生效 [[UINavigationBar appearance] setShadowImage:[UIImage new]]; //设置了BackgroundImage 就不要去设置BackgroundColor了 // [[UINavigationBar appearance] setBackgroundColor:[UIColor navBackgroundColor]]; //也可以不用设置BarTintColor // [[UINavigationBar appearance] setBarTintColor:[UIColor blackColor]];

In Apple's recently released Remote app I noticed the way in which the navigation bar behaves is unique and I haven't been able reproduce it. When popping the Now Playing view controller the navigation bar remains transparent for the Now Playing view controller and the navigation bar for the library view controller also stays translucent (Screenshot 1). I'm trying to figure out if they are using two navigation controllers or only one. Personally I feel they're using just one for two reasons (1) the interactive pop gesture is enabled; (2) when you press the 'Now Playing' button in the library

Want to give additional space from the top for navigation title shopping list. How can I do it? Dont see a option to do it in the properties of navigation item in the story board. Its close to the date, battery icon in the top of the app. Attached the screenshot. Tried the below code its not working using swift2 override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. navigationController?.navigationBar.setTitleVerticalPositionAdjustment(15,forBarMetrics: UIBarMetrics.Default) // set any number you want between -20 to 15 } Try

I am aware that this question has been asked previously, and I know how to actually change views or view controllers w/ a segmented control, but I have a more specific problem. I had my UI designed, and the designer used something that appeared to me like a UISegmentedControl as the view changer. However, it is below the navigation bar, so I cannot embed the Segmented Control in the navigation bar and let the navigation controller handle pushing and popping views on and off the stack, as I need the segmented control to not animate, as if it were part of the Navigation Bar. I have tried this a

I've looked through a few online tutorials, but nothing is working. That's the code of my viewController: import UIKit class ViewController: UINavigationController { let textView = UITextView() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. // tried this self.navigationItem.title = "AAA" // and this self.title = "AAA" // and finally this self.parent?.title = "AAA" } } I don't understand why this isn't working (I haven't used a navigation bar before) I didn't change anything in the main.storyboard. Thanks for your

I have three viewControllers in a UINavigationController . In the second one I need to hide the navigation bar but not the back button and other bar button . For this reason I can't use isNavigationBarHidden = true Currently I am handling the above as follows : First viewController : override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) self.navigationController?.navigationBar.barTintColor = Constants.kThemeRedColor self.navigationController?.navigationBar.tintColor = UIColor.white self.navigationController?.navigationBar.barStyle = .black self.navigationController?