我在 swift 中以编程方式使用导航栏,但无法在导航栏中显示栏按钮项目, 这是我所做的代码
override func viewDidLoad() {
super.viewDidLoad()
let navBar: UINavigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: 420, height: 65))
self.view.addSubview(navBar)
navBar.backgroundColor = hexStringToUIColor("4DC8BD")
let navigationItem = UINavigationItem()
self.title = "Transport APP"
let btn1 = UIButton(type: .custom)
btn1.setImage(UIImage(named: "Menu1"), for: .normal)
btn1.frame = CGRect(x: 30, y: 30, width: 30, height: 30)
btn1.addTarget(self, action: #selector(HomeViewController.menubuttonclick(_:)), for: .touchUpInside)
let item1 = UIBarButtonItem(customView: btn1)
self.navigationItem.setRightBarButtonItems([item1], animated: true)
}
@IBAction func menubuttonclick(_ sender:UIBarButtonItem )
{
print("this menu button click")
}
我可以尝试很多方法,但我没有得到结果 如何在导航栏中显示显示栏按钮项目,
最佳答案
您应该将 UINavigationItem
添加到您的 UINavigationBar
并且在 item1 中需要添加到 navitem 看下面代码
let navitem = UINavigationItem()
navitem.rightBarButtonItem = item1
navBar.setItems([navitem], animated: true)
关于ios - 导航栏按钮和项目未在 swift 3 中显示,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46357298/