使用UITextView自定义UINavigationBar iOS

时间:2017-10-04 19:09:41

标签: ios uinavigationcontroller uinavigationbar

我正在尝试在iOS上完成以下操作: 使用两个UITextView自定义UINavigationBar iOS

Bellow你可以在Android上看到相同的内容。

UINavigationBar可以实现吗? 我怎么能这样做?

我尝试将UIBarButtonItem与自定义UIView一起使用,但似乎它的大小有限,因此无法实现我的目标。

django.forms.Media

1 个答案:

答案 0 :(得分:0)

像这样的东西。用故事板赢得它是不可能的,甚至可能不会尝试。

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    window = UIWindow(frame: UIScreen.main.bounds)
    window?.makeKeyAndVisible()

    let layout = UICollectionViewFlowLayout()


    UINavigationBar.appearance().barTintColor = UIColor.yellow


    UINavigationBar.appearance().shadowImage = UIImage()
    UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)

    application.statusBarStyle = .lightContent

    let textViewOne = UITextView()
    textViewOne.text = "1000"


    window?.addSubview(textViewOne)
    //top constraint

    window?.addConstraintsWithFormat("H:[v0(100)]-16-|", views: textViewOne)

    window?.addConstraintsWithFormat("V:|-16-[v0(24)]", views: textViewOne)
    return true
}



extension UIView {
    func addConstraintsWithFormat(_ format: String, views: UIView...) {
        var viewsDictionary = [String: UIView]()
        for (index, view) in views.enumerated() {
            let key = "v\(index)"
            view.translatesAutoresizingMaskIntoConstraints = false
            viewsDictionary[key] = view
        }

        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: format, options: NSLayoutFormatOptions(), metrics: nil, views: viewsDictionary))
    }
}