我正在尝试添加一个(角半径为 25.0 的自定义)UIButton 以悬停在我的 View Controller 中的键盘上方。
我尝试通过使用以下代码将此按钮添加到工具栏来自行完成此操作，但是，我并不是在寻找工具栏:
let toolbar = UIToolbar(frame: CGRectMake(0, 0, self.view.frame.size.width, 50))
toolbar.barStyle = UIBarStyle.Default
loginButton.titleLabel?.textColor = UIColor.whiteColor()
loginButton.backgroundColor = UIColor.redColor()
loginButton.titleLabel?.text = "Sign Up"
loginButton.addTarget(self, action: #selector(signUp), forControlEvents: .TouchUpInside)
let customButton = UIBarButtonItem(customView: loginButton)
toolbar.items = [customButton]
toolbar.sizeToFit()
//...
//When credentials are valid, show/enable button...
usernameEmailField.inputAccessoryView = toolbar
如何添加一个 UIButton 以始终悬停在键盘上方？
谢谢。
最佳答案
这个对我有用。请试试这个
//create toolbar object
let doneToolBar: UIToolbar = UIToolbar(frame:CGRect(x: 0, y: 0, width: UIScreen.mainScreen().bounds.size.width, height: 44))
doneToolBar.barStyle = UIBarStyle.BlackTranslucent
//add barbuttonitems to toolbar
let flexsibleSpace: UIBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil) // flexible space to add left end side
let doneButton: UIBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Done, target: self, action: #selector(UITextField.didPressDoneButton))
doneToolBar.items = [flexsibleSpace,doneButton]
//assing toolbar as inputAccessoryView
textField.inputAccessoryView = doneToolBar
doneToolBar.sizeToFit()
关于Swift:以编程方式在键盘上方添加 UIButton，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38577435/