UIView中有几个TextField . 我想在用户编辑TextField时向上移动视图 . 然后我尝试引用Move view with keyboard using Swift
我的核心代码如下：
//MARK: Properties
@IBOutlet weak var userAccountTextField: UITextField!
@IBOutlet weak var passwordTextField: UITextField!
@IBOutlet weak var confirmPasswordTextField: UITextField!
@IBOutlet weak var emailTextField: UITextField!
@IBOutlet weak var phoneTextField: UITextField!
//MARK: Callback
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillShow, object: self.view.window)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillHide, object: self.view.window)
}
func keyboardWillShow(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue.size {
if self.view.frame.origin.y == 0{
//self.view.frame.origin.y -= keyboardSize.height
self.view.frame.origin.y -= 150
}
}
}
func keyboardWillHide(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue.size {
if self.view.frame.origin.y != 0{
//self.view.frame.origin.y += keyboardSize.height
self.view.frame.origin.y += 150
}
}
}
有两个问题：
1.带键盘的keyboardSize.height比键盘大小更高，显示键盘 . 然后键盘隐藏后会出现黑色字段 . 所以现在我必须使用一个常数 .
2.键盘显示后视图向上移动，它好's good.But the view move down again when i type some chars or i click other TextFiled.It' s如果我将这些TextFields放入ScrollView.But我不要't it' s为什么 . 如下图所示：enter image description here
任何帮助将不胜感激 .
1 回答
你的“viewDidLoad”方法包含一个错误，你必须添加而不是删除观察者，你必须在“viewWillDisappear”中删除它