首先,我隐藏了导航条
navigationController?.setNavigationBarHidden(true, animated: false)
并在导航条的位置上做了两个按钮。这在模拟器上是可行的,但在实际设备上(iPhone 6),当按钮在导航条区域时,触摸事件没有工作。
我决定制作透明背景的自定义导航条和2个按钮(一个是后方的btn,另一个是右方的View)。
我尝试了苹果文档的说明。
let backButtonBackgroundImage = UIImage(named: "testDpng.png")
let barAppearance =
UINavigationBar.appearance(whenContainedInInstancesOf: [SubViewController.self])
barAppearance.backIndicatorImage = backButtonBackgroundImage
barAppearance.backIndicatorTransitionMaskImage = backButtonBackgroundImage
// Nudge the back UIBarButtonItem image down a bit.
let barButtonAppearance =
UIBarButtonItem.appearance(whenContainedInInstancesOf: [SubViewController.self])
barButtonAppearance.setBackButtonTitlePositionAdjustment(UIOffset(horizontal: 0, vertical: -5), for: .default)
但是什么都没有发生。BackBtn看起来和往常一样。
我怎么才能解决这个问题?正确的方法是--替换导航条?或者我应该隐藏导航栏,就像我从一开始尝试的那样?
不要隐藏导航条,让它透明化,并添加以下功能 UIBarButtonItem
到导航条的左右两边。
以下代码适用于Swift 5。
override func viewDidLoad() {
super.viewDidLoad()
//Make NavigationBar Transparent
self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
self.navigationController?.navigationBar.shadowImage = UIImage()
//Add Left Button Which Has Image
let leftButton = UIBarButtonItem(image: UIImage(named: "shape"), style: .plain, target: self, action: #selector(crossBtnTapped))
self.navigationItem.leftBarButtonItem = leftButton
//Add Right Button Which Has Title
let rightButton = UIBarButtonItem(title: "Restore", style: .done, target: self, action: #selector(restoreTapped))
rightButton.tintColor = .darkGray
self.navigationItem.rightBarButtonItem = rightButton
}
点击按钮的动作方法
@objc func restoreTapped(){
print("Restore Tapped")
}
@objc func crossBtnTapped(){
print("Cross Tapped")
}
产量 :