如何更改UIImagePickerController導航欄字體？

Question

我需要它成爲Helvetica Neue Light。這裏是我創建控制器

let picker: UIImagePickerController = UIImagePickerController() 
picker.delegate = self 
picker.allowsEditing = false 
picker.navigationBar.tintColor = UIColor.whiteColor() 
picker.sourceType = .PhotoLibrary 
picker.navigationController?.navigationBar.tintColor = UIColor.blueColor() 

self.presentViewController(picker, animated: true, completion: { _ in }) 

Answer 1

這是你如何做到這一點：

picker.navigationBar.titleTextAttributes = 
    [NSForegroundColorAttributeName: UIColor.redColor(), 
     NSFontAttributeName: UIFont.init(name: "Helvetica", size: 21)!] 

而且，一個小問題，你的代碼：UIImagePickerController從UINavigationController導出，picker.navigationController?總是nil在你的代碼以上。