如何给导航栏添加图片和按钮设计?
How to add image and button design to the navigation bar?
我想在导航栏的设计中添加按钮和图片,但是无法成功添加图片。我在 viewDidLoad 中尝试了以下代码:
let logo = UIImage(named: "logo.png")
let imageView = UIImageView(image:logo)
navigationController?.navigationBar.barTintColor = UIColor.green
self.navigationItem.titleView = imageView
我尝试了代码,导航栏如下所示:
作为我尝试的代码的结果,边缘有 space。我想将图片对齐到屏幕的右侧。我想将按钮对齐到屏幕的左侧。
我要的设计图如下:
我应该为此尝试什么代码?
你应该试试这个,希望它有用
let backButton: UIBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: self, action: #selector(back))
self.navigationItem.leftBarButtonItem = backButton
let logo = UIImage(named: "google_logo.png")
let imageView = UIImageView(image:logo)
imageView.contentMode = .scaleAspectFit
self.navigationItem.titleView = imageView
这是你想要的吗?虽然背景图片被拉伸了,因为我只是随机选择了一张图片,它没有正确的导航栏分辨率。
在iOS14,看起来是这样的。嗯,我也是google,因为这也是我第一次自定义导航栏的背景图。我通常使用纯色作为背景。
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
let img = UIImage(named: "Human")!
navigationController?.navigationBar.setBackgroundImage(img.resizableImage(withCapInsets: UIEdgeInsets(top: 0, left: 0, bottom: 0 ,right: 0), resizingMode: .stretch), for: .default)
let backImg = UIImage(named: "back")?.withRenderingMode(.alwaysOriginal)
let leftButton = UIBarButtonItem(image: backImg, style: .plain, target: self, action: #selector(backTapped))
navigationItem.leftBarButtonItem = leftButton
}
我想在导航栏的设计中添加按钮和图片,但是无法成功添加图片。我在 viewDidLoad 中尝试了以下代码:
let logo = UIImage(named: "logo.png")
let imageView = UIImageView(image:logo)
navigationController?.navigationBar.barTintColor = UIColor.green
self.navigationItem.titleView = imageView
我尝试了代码,导航栏如下所示:
我要的设计图如下:
我应该为此尝试什么代码?
你应该试试这个,希望它有用
let backButton: UIBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: self, action: #selector(back))
self.navigationItem.leftBarButtonItem = backButton
let logo = UIImage(named: "google_logo.png")
let imageView = UIImageView(image:logo)
imageView.contentMode = .scaleAspectFit
self.navigationItem.titleView = imageView
这是你想要的吗?虽然背景图片被拉伸了,因为我只是随机选择了一张图片,它没有正确的导航栏分辨率。
在iOS14,看起来是这样的。嗯,我也是google,因为这也是我第一次自定义导航栏的背景图。我通常使用纯色作为背景。
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .white
let img = UIImage(named: "Human")!
navigationController?.navigationBar.setBackgroundImage(img.resizableImage(withCapInsets: UIEdgeInsets(top: 0, left: 0, bottom: 0 ,right: 0), resizingMode: .stretch), for: .default)
let backImg = UIImage(named: "back")?.withRenderingMode(.alwaysOriginal)
let leftButton = UIBarButtonItem(image: backImg, style: .plain, target: self, action: #selector(backTapped))
navigationItem.leftBarButtonItem = leftButton
}