麻烦设置导航栏的字体和大小

Question

I know this is very simple but I have looked everywhere and cannot find the answer to this. What I have found tells me to write this code, or similar code. And I have tried everything. I am using a Navigation Controller and I want to change the font and size of the text. I have not been able to change the font or size of text at all. Any help is very much appreciated!

    self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "Apple SD Gothic NEO", size: 20)!]
    self.navigationController?.navigationBar.barTintColor = UIColor.whiteColor()

Answer 1

A possible solution is replace the title label with a new one.

Example:

let titleLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 20, height: 50))
titleLabel.text = "Title"
titleLabel.font = UIFont.boldSystemFontOfSize(17)

self.navigationItem.titleView = titleLabel