swift - 如何在 Swift 4 中将 navigationItem.title 更改为白色？

Question

如何在 Swift 4 中将 navigationItem.title 更改为白色？

let uid = Auth.auth().currentUser?.uid
Database.database().reference().child("users").child(uid!).observeSingleEvent(of: .value, with: {(snapshot) in          
    if let dictionary = snapshot.value as? [String: AnyObject] {
        self.navigationItem.title = dictionary["name"] as? String
        self.navigationController?.navigationBar.prefersLargeTitles = true
    }
},withCancel: nil)

Answer 1

您可以使用此更改标题颜色:

self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.white]