Setting titleTextAttriubutes of navigationBar crashes the app only on ios 7.1 device not simulator

Question

Here is the code that crashes the app

navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: NAV_BAR_TINT_COLOR]

This is the output

2014-08-13 18:21:47.567 demoapp[1214:60b] *** NSForwarding: warning: object 0x102e90000 of class '_TtCSs29_NativeDictionaryStorageOwner0000000156D27548' does not implement methodSignatureForSelector: -- trouble ahead
(lldb) 

This line used to work with xcode 6 beta 4, I just updated to xcode 6 beta 5 and app crashes

Answer 1

你可以试试这个吗？

[[UINavigationBar appearance]setTitleTextAttributes:@{UITextAttributeTextColor : [UIColor whiteColor]}];

Answer 2

  This code work for me.May be it's helpful for you.

 let titleDict: NSDictionary = [NSForegroundColorAttributeName: UIColor.greenColor()]
 self.navigationController.navigationBar.titleTextAttributes =  titleDict
 self.navigationController.navigationBar.tintColor = UIColor.whiteColor()