修改两个右 UIBarButtonItems 之间的间距

Question

我想在导航栏的右侧放置两个 UIBarButtonItems。我面临的主要问题是按钮之间的间距（最右边的按钮和导航视图边框之间的间距已经解决，多亏了这个post）。这是我使用的代码

// add buttons
        let buttonEdit: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
        buttonEdit.frame = CGRectMake(0, 0, 40, 40)
        buttonEdit.setImage(UIImage(named:"iconMap"), forState: UIControlState.Normal)
        buttonEdit.addTarget(self, action: "rightNavItemEditClick:", forControlEvents: UIControlEvents.TouchUpInside)
        var rightBarButtonItemEdit: UIBarButtonItem = UIBarButtonItem(customView: buttonEdit)


        let buttonDelete: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
        buttonDelete.frame = CGRectMake(0, 0, 40, 40)
        buttonDelete.setImage(UIImage(named:"iconMap"), forState: UIControlState.Normal)
        buttonDelete.addTarget(self, action: "rightNavItemDeleteClick:", forControlEvents: UIControlEvents.TouchUpInside)

        var rightBarButtonItemDelete: UIBarButtonItem = UIBarButtonItem(customView: buttonDelete)


        let spaceFix: UIBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FixedSpace, target: nil, action: nil)
        spaceFix.width = -10 
 // add multiple right bar button items
 self.navigationItem.setRightBarButtonItems([spaceFix,rightBarButtonItemDelete,rightBarButtonItemEdit], animated: true)

如果我尝试在两个按钮之间放置一个额外的垫片（如图所示 here），则没有明显效果。我需要让按钮靠近一点，我该怎么做？

Answer 1

您实际上无法控制 UIBarButtonItem 之间的间距。您可以更改 UIBarButtonItem 的 width，仅此而已。 UIButtonItem 不是 UIView；它没有框架，所以你不能说它的位置。如果你想更好地控制界面的外观，你将不得不使用一个 UIBarButtonItem，它本身包含一个自定义视图 (init(customView:))。现在你在 UIView 的世界里，你可以设置它的子视图的框架，它可以是真正的按钮或任何东西。

修改两个右 UIBarButtonItems 之间的间距

Modifying spacing between two right UIBarButtonItems

swift

ios8

uinavigationbar

uibarbuttonitem

spacing