Ios 我想复制这个导航栏，这是一个android版本，我该怎么做？

这张图片是一个android导航栏，我想用swift 3在ios中复制它。我已经在这方面工作了几天，但我不能得到正确的任何帮助将是伟大的

let height: CGFloat = 128  //whatever height you want
let bounds = self.navigationController!.navigationBar.bounds
self.navigationController?.navigationBar.frame = CGRect(x: 0, y: 0, width: bounds.width, height: bounds.height + height)

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我这样做是为了获得正确的导航栏高度，但我似乎无法获得正确的导航栏按钮位置。

像这样添加按钮-

let myBackButton = UIButton(type: .custom)
myBackButton.addTarget(self, action: #selector(backAction), for: UIControlEvents.touchUpInside)
myBackButton.setTitle("YOUR TITLE", for: UIControlState.normal)
myBackButton.setTitleColor(UIColor.blue, for: UIControlState.normal)
myBackButton.sizeToFit()
myBackButton.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let myCustomBackButtonItem:UIBarButtonItem = UIBarButtonItem(customView: myBackButton)
self.navigationItem.leftBarButtonItem  = myCustomBackButtonItem

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像这样加上按钮-

let myBackButton = UIButton(type: .custom)
myBackButton.addTarget(self, action: #selector(backAction), for: UIControlEvents.touchUpInside)
myBackButton.setTitle("YOUR TITLE", for: UIControlState.normal)
myBackButton.setTitleColor(UIColor.blue, for: UIControlState.normal)
myBackButton.sizeToFit()
myBackButton.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let myCustomBackButtonItem:UIBarButtonItem = UIBarButtonItem(customView: myBackButton)
self.navigationItem.leftBarButtonItem  = myCustomBackButtonItem

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我不确定我是否理解您的问题，但为什么要更改导航栏的框架？如果需要左两个按钮和右一个按钮，可以使用navigationItem.LeftBarButtonims.Ems的可能副本我不确定是否理解您的问题，但为什么要更改导航栏的框架？如果需要左两个按钮和右一个按钮，可以使用navigationItem.LeftBarButtonims