导航项 Swift 3 到 Swift 4

Question

我一直遇到的问题是，在我下载 Xcode 9 之后，我的应用程序的用户界面变得一团糟。

   let item1 = UIBarButtonItem(image: #imageLiteral(resourceName: "SettingsInto"), style: .done, target: self, action: #selector(settingsPressed))

    self.navigationItem.setRightBarButton(item1, animated: true)

    let item2 = UIBarButtonItem(image: #imageLiteral(resourceName: "search icon"), style: .plain, target: self, action: #selector(searchPressed))
    self.navigationItem.setLeftBarButtonItem(item2, animated: true)

    let imageButton = UIButton(frame: CGRect(x: 0, y: 0, width: 0, height: navigationBarHeight))
    let image = #imageLiteral(resourceName: "Stickiie Logo Main")
    imageButton.setImage(image, for: UIControlState())
    imageButton.imageView?.contentMode = .scaleAspectFit
    imageButton.addTarget(self, action: #selector(refresh), for: .touchDown)
    self.navigationItem.titleView? = imageButton

在 Xcode 9 之前：

Xcode9 之后：

Answer 1

原来是图标太大了

https://developer.apple.com/ios/human-interface-guidelines/overview/themes/

导航项 Swift 3 到 Swift 4

Navigation Item Swift 3 to Swift 4

xcode

ios

swift4

ios11

xcode9