swift - 创建后在 UITextView 的 inputAccessoryView 中更改 UIBarButtonItem 的按钮标题？

Question

我创建了一个inputAccessoryViewfor UITextViewin viewDidLoad：

var keyBoardToolBar: UIToolbar = UIToolbar(frame: CGRectMake(0, 0, self.view.frame.size.width, 50)) keyBoardToolBar.barStyle = UIBarStyle.Default

var firstButton: UIBarButtonItem = UIBarButtonItem(title: "firstButton", style: UIBarButtonItemStyle.Plain, target: self, action: Selector("firstButtonAction"))

var flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)

var done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: Selector("doneButtonAction"))

var items = NSMutableArray()

items.addObject(firstButton)
items.addObject(flexSpace)
items.addObject(done)

keyBoardToolBar.items = items as [AnyObject]
keyBoardToolBar.sizeToFit()

self.tv.inputAccessoryView = keyBoardToolBar

我想更改firstButton其他功能中的按钮文本（之后viewDidLoad）。那我该怎么办？谢谢！

Answer 1

我只是在之前var的firstButton: UIBarButtonItem班级里面，viewDidLoad并改变了它的标题使用firstButton.title。:)