导航栏右栏按钮项间距

Question

我创建了一个导航栏http://oi61.tinypic.com/r0p8w4.jpg,从故事板,titleView和代码中的三个右键按钮项添加了左栏按钮项.

这是代码:

override func viewDidLoad() {
    super.viewDidLoad()

    var screenWidth = UIScreen.mainScreen().bounds.width
    // custom title view
    var navBarWidth: CGFloat = self.navigationController!.navigationBar.frame.size.width
    let customTitleView = UIView(frame: CGRectMake(0, 0, navBarWidth, 44))
    titleLabel = UILabel(frame: CGRectMake(20, 0, navBarWidth, 40))
    titleLabel.text = conversationName
    if let titleFont = UIFont(name: "Roboto-Regular", size: 20) {
        titleLabel.font = titleFont
    }
    titleLabel.textColor = UIColor.whiteColor()

    customTitleView.addSubview(titleLabel)
    self.navigationItem.titleView = customTitleView

    // right bar buttons
    var searchImage = UIImage(named: "search")!
    var clipImage = UIImage(named: "clip")!
    var pencilImage = UIImage(named: "pencil")!

    var searchBtn = UIBarButtonItem(image: searchImage, style: UIBarButtonItemStyle.Plain, target: self, action: Selector("searchBtnPressed"))
    searchBtn.tintColor = UIColor.whiteColor()
    var clipBtn = UIBarButtonItem(image: clipImage, style: UIBarButtonItemStyle.Plain, target: self, action: Selector("clipBtnPressed"))
    clipBtn.tintColor = UIColor.whiteColor()
    var pencilBtn = UIBarButtonItem(image: pencilImage, style: UIBarButtonItemStyle.Plain, target: self, action: Selector("pencilBtnPressed"))
    pencilBtn.tintColor = UIColor.whiteColor()

    self.navigationItem.setRightBarButtonItems([pencilBtn, clipBtn, searchBtn], animated: false)
}

我的问题是我想改变右键之间的间距,但我不知道如何.

我试图在它们之间添加一个fixedButton,但它只是增加了现有的空间.

有人能帮我吗？谢谢.

Answer 1

我用这种方式解决了我的问题:

var searchImage = UIImage(named: "search-selected")!
var clipImage = UIImage(named: "clip")!
var pencilImage = UIImage(named: "pencil")!

let searchBtn: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton
searchBtn.setImage(searchImage, forState: UIControlState.Normal)
searchBtn.addTarget(self, action: "searchBtnPressed", forControlEvents: UIControlEvents.TouchUpInside)
searchBtn.frame = CGRectMake(0, 0, 30, 30)
let searchBarBtn = UIBarButtonItem(customView: searchBtn)

let clipBtn: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton
clipBtn.setImage(clipImage, forState: UIControlState.Normal)
clipBtn.addTarget(self, action: "clipBtnPressed", forControlEvents: UIControlEvents.TouchUpInside)
clipBtn.frame = CGRectMake(0, 0, 30, 30)
let clipBarBtn = UIBarButtonItem(customView: clipBtn)

let pencilBtn: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! UIButton
pencilBtn.setImage(pencilImage, forState: UIControlState.Normal)
pencilBtn.addTarget(self, action: "pencilBtnPressed", forControlEvents: UIControlEvents.TouchUpInside)
pencilBtn.frame = CGRectMake(0, 0, 30, 30)
let pencilBarBtn = UIBarButtonItem(customView: pencilBtn)

self.navigationItem.setRightBarButtonItems([pencilBarBtn, clipBarBtn, searchBarBtn], animated: false)

现在看起来不错,

Swift 4.1的更新

let testButton : UIButton = UIButton.init(type: .custom)
testButton.setImage(editImage, for: .normal)
testButton.addTarget(self, action: #selector(didTapCameraButton), for: .touchUpInside)
testButton.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let addButton = UIBarButtonItem(customView: testButton)

Answer 2

对于Swift 3:

let searchBtn: UIButton = UIButton(type: UIButtonType.custom)
searchBtn.setImage(UIImage(named: "search"), for: [])
searchBtn.addTarget(self, action: #selector(ViewController.searchBtnPressed(_:)), for: UIControlEvents.touchUpInside)
searchBtn.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let searchButton = UIBarButtonItem(customView: searchBtn)

let clipBtn: UIButton = UIButton(type: UIButtonType.custom)
clipBtn.setImage(UIImage(named: "clip"), for: [])
clipBtn.addTarget(self, action: #selector(ViewController.clipBtnPressed(_:)), for: UIControlEvents.touchUpInside)
clipBtn.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let clipButton = UIBarButtonItem(customView: clipBtn)

let pencilBtn: UIButton = UIButton(type: UIButtonType.custom)
pencilBtn.setImage(UIImage(named: "pencil"), for: [])
pencilBtn.addTarget(self, action: #selector(ViewController.pencilBtnPressed(_:)), for: UIControlEvents.touchUpInside)
pencilBtn.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let pencilButton = UIBarButtonItem(customView: pencilBtn)

self.navigationItem.rightBarButtonItems = [pencilButton, clipButton, searchButton]

替换ViewController为您的视图控制器

Answer 3

设置testButton.frame没有帮助。

这个解决方案对我来说是正确的！

rightButton.imageEdgeInsets = UIEdgeInsets(top: 3, left: 10, bottom: 7, right: 0)