键盘问题上方的文本字段

Question

我正在开发有评论和用户的应用程序，我需要用户将评论插入 table 视图，我面临的问题是关于键盘，当用户按下用于编写评论的文本字段，键盘出现，文本字段位于其上方，如下面的代码。

但问题是当我更改键盘语言、将键盘更改为表情符号或打开自动更正时，文本字段被覆盖并且不会随键盘布局移动。

override func viewWillAppear(animated: Bool) {

    super.viewWillAppear(animated)

    // KeyBoard Show and Hide

    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(Commants_Page.keyboardWillShow(_:)), name: UIKeyboardWillShowNotification, object:nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(Commants_Page.keyboardWillHide(_:)), name: UIKeyboardWillHideNotification, object: nil)


    NSNotificationCenter.defaultCenter().addObserver(self,selector: #selector(Commants_Page.adjustForKeyboard(_:)),name: UIKeyboardWillChangeFrameNotification,object: nil)

}


// KeyBoard Show and Hide Function

func keyboardWillShow(notification: NSNotification) {

    if KeyBoardMove == false {

        if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
            self.view.frame.origin.y -= keyboardSize.height

            KeyBoardMove = true
        }
    }
}

func keyboardWillHide(notification: NSNotification) {

    if KeyBoardMove == true {

        if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.CGRectValue() {
            self.view.frame.origin.y += keyboardSize.height

            KeyBoardMove = false
        }
    }
}

Answer 1

有一次我遇到了同样的问题并找到了如下解决方法。我不确定这是否是完美的解决方案，但它按我的预期工作。所以你可以试试看。

我做的是：

在viewWillAppear中添加UITextInputCurrentInputModeDidChangeNotification通知
执行changeInputMode方法来确定键盘类型

处理 keyboardWillShow 和 keyboardWillHide

var isEmoji = Bool()

override func viewWillAppear(animated: Bool) {

super.viewWillAppear(animated)

isEmoji = false
 NSNotificationCenter.defaultCenter().addObserver(self, selector: "changeInputMode:", name:UITextInputCurrentInputModeDidChangeNotification, object: nil)

}

func changeInputMode(notification : NSNotification)
{
    //Emoji keyboard does not have any primary language whereas normal text keyboard does have. Therefore, on the bases of it we can determine the keyboard type

    if let lang = txtComment.textInputMode?.primaryLanguage
    {
        isEmoji = false
    }
    else{
        isEmoji = true
    }
}

func keyboardWillShow(notification: NSNotification) {
    if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.CGRectValue() {
        print(isEmoji)
        if(!isEmoji){                

            writeCommentView.frame.origin.y -= keyboardSize.height
        }
        else{
            writeCommentView.frame.origin.y -= 37 //where 37 is the height differece between normal keyboard and emoji keyboard. Change this value accordingly
        }


    }
}

func keyboardWillHide(notification: NSNotification) {
    if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
        //Handle this method accordingly. For example..
        if(!isEmoji){                

            writeCommentView.frame.origin.y += keyboardSize.height
        }
        else{
            writeCommentView.frame.origin.y += 37
        }
    }
}

希望对您有所帮助。

键盘问题上方的文本字段

TextFiled above the Keyboard issue

keyboard

nsnotifications

uitextfield

uikeyboard

swift