我想通過使用徽標圖像（而不是純文本）作為導航欄的標題來自定義應用程序的外觀。當我使用此代碼let logo = UIImage(named: "logo.png")self.navigationItem.titleView = logo;我收到錯誤“ UIImage無法轉換為UIView”。如何正確執行此操作？
3 回答
慕容森
TA貢獻1853條經驗 獲得超18個贊
放在里面 UIImageView
let logo = UIImage(named: "logo.png")
let imageView = UIImageView(image:logo)
self.navigationItem.titleView = imageView
繁華開滿天機
TA貢獻1816條經驗 獲得超4個贊
我用這個 它適用于iOS 8
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let image = UIImage(named: "YOURIMAGE")
navigationItem.titleView = UIImageView(image: image)
}
這是一個示例，您如何使用CGRect做到這一點。
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 38, height: 38))
imageView.contentMode = .ScaleAspectFit
let image = UIImage(named: "YOURIMAGE")
imageView.image = image
navigationItem.titleView = imageView
}
希望這會有所幫助。
萬千封印
TA貢獻1891條經驗 獲得超3個贊
對于Swift 4，您可以調整imageView的大小
let logoContainer = UIView(frame: CGRect(x: 0, y: 0, width: 270, height: 30))
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 270, height: 30))
imageView.contentMode = .scaleAspectFit
let image = UIImage(named: "your_image")
imageView.image = image
logoContainer.addSubview(imageView)
navigationItem.titleView = logoContainer
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