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iOS: Increase spacing to UIBarButtonItem

I made a custom UINavigationBar looks like this:[1]

Now I want to increase spacing between left and left bar button. I tried to do that this way using UIEdgeInsets this way:

self.navigationItem.leftBarButtonItem?.imageInsets = UIEdgeInsetsMake(0, 20, 0, 0)

Then it gets shrieked 2]:

Solution

  • You can add extra spacing item before button:

        let button = UIBarButtonItem(title: "<", style: .plain, target: self, action: "someSelector")
    let spacing = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil)
    spacing.width = 20;
    navigationItem.leftBarButtonItems = [spacing, button]