BarButtonItem EdgeInsets不起作用

Question

我想添加一个导航栏rightBarButtonItems在按钮之间，但它现在正在工作的一个填充。

这里的按钮创建代码与给定的插图：

lazy var previewBarButtonItem: UIBarButtonItem = { 
    let buttonItem = UIBarButtonItem(title: "Preview", style: .plain, target: self, action: #selector(handlePreview)) 
    buttonItem.tintColor = UIColor.black 
    buttonItem.setTitleTextAttributes([NSFontAttributeName: UIFont.systemFont(ofSize: 14)], for: .normal) 
    buttonItem.imageInsets = UIEdgeInsetsMake(0, -15, 0, 15) 
    return buttonItem 
}() 

override func viewDidLoad() { 
    super.viewDidLoad() 
    setupRightNavItems() 
} 

fileprivate func setupRightNavItems() { 
    navigationItem.rightBarButtonItems = [submitBarButtonItem, previewBarButtonItem] 
} 

你能给为什么这不工作的一个暗示？

由于

Answer 1

我设法解决这个问题，只是增加了一个fixedSpace栏按钮项目在中间如下：

1）除去任何EdgeInsets 2）添加以下固定空间：

fileprivate func setupRightNavItems() { 
    let spacing = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil) 
    spacing.width = 25 //change to your desired space width 
    navigationItem.rightBarButtonItems = [submitBarButtonItem, spacing, previewBarButtonItem] 
}