快速更改导航栏颜色

Question

此代码有效，导航栏的颜色变为蓝色

override func viewDidLoad() {
    super.viewDidLoad()
    navigationItem.title = "Countries"
    navigationController?.navigationBar.barTintColor = UIColor.blue
    tabBarController?.tabBar.tintColor = UIColor.white
    view.backgroundColor = .white
}

但是当添加navigationController?.navigationBar.prefersLargeTitles = true

颜色不变

override func viewDidLoad() {
    super.viewDidLoad()
    navigationItem.title = "Countries"
    navigationController?.navigationBar.prefersLargeTitles = true
    navigationController?.navigationBar.barTintColor = UIColor.blu
    tabBarController?.tabBar.tintColor = UIColor.white
    view.backgroundColor = .white
}

Answer 1

在这里你可以使用 [navigationBar.backgroundColor] 代替 [navigationBar.backgroundColor]。 barTintColor]

    navigationItem.title = "Countries"
    
    navigationController?.navigationBar.prefersLargeTitles = true
    
    navigationController?.navigationBar.backgroundColor = UIColor.blue
    
    tabBarController?.tabBar.tintColor = UIColor.white
    
    view.backgroundColor = .white