barButtonItemの注意点を追加
509 ワード
let leftBarBtn = UIBarButtonItem(title: "", style: .plain, target: self,
action: #selector(backToPrevious))
leftBarBtn.image = UIImage(named: "back")
// ,
let spacer = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil,
action: nil)
spacer.width = -10;
// :
self.navigationItem.leftBarButtonItems = [spacer, leftBarBtn]