How to put a Bar button item to the bottom of a toolbar?

Question

I have a toolbar at the top of my app. I changed the height programmatically to make it a bit bigger.

    var constH = NSLayoutConstraint(item: toolbar, attribute: NSLayoutAttribute.Height,
    relatedBy: NSLayoutRelation.Equal, toItem: nil, 
    attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 64)
    toolbar.addConstraint(constH)

But now I have the problem when I add bar button items via storyboard, it automatically centers them vertically. Only the standard items stay at the bottom. How to solve?

[Please answer in Swift]

Answer 1

您应该使用IBOutlet连接条形按钮项，然后可以使用边缘插入轻松添加间距：

barButton.imageInsets = UIEdgeInsetsMake(0,10,0,0)

Answer 2

You can do this for programmatically added items as well: (Code in Swift3)

let search = UIBarButtonItem(image: UIImage(named: "Search"), style: .plain, target: nil, action: nil)
search.imageInsets = UIEdgeInsetsMake(10, 0, 0, 0)
navigationItem.rightBarButtonItem = search