语法变动

注:name变动 如下

       NotificationCenter.default.addObserver(self,
                                               selector: #selector(keyBoardWillShow(notification:)), name: UIResponder.keyboardWillShowNotification,
                                               object: nil)

以下是相关的key

    public class let keyboardWillShowNotification: NSNotification.Name
    public class let keyboardDidShowNotification: NSNotification.Name
    public class let keyboardWillHideNotification: NSNotification.Name
    public class let keyboardDidHideNotification: NSNotification.Name

相关通知

        // MARK: - 键盘即将弹出
        NotificationCenter.default.addObserver(self,
                                               selector: #selector(keyBoardWillShow(notification:)), name: NSNotification.Name.UIKeyboardWillShow,
                                               object: nil)
        // MARK: - 键盘即将回收
        NotificationCenter.default.addObserver(self,
                                               selector: #selector(keyBoardWillHide(notification:)), name: NSNotification.Name.UIKeyboardWillHide,
                                               object: nil)

处理对应事件

 // MARK: - 键盘即将弹出
    @objc func keyBoardWillShow(notification: Notification) {
        let userInfo = notification.userInfo! as Dictionary
        let value = userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue
        let keyBoardRect = value.cgRectValue
        // 得到键盘高度
        let keyBoardHeight = keyBoardRect.size.height
        // 得到键盘弹出所需时间
        let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey] as! NSNumber
    }

    // MARK: - 键盘即将回收
    @objc func keyBoardWillHide(notification: Notification) {
         let userInfo = notification.userInfo! as Dictionary
        let value = userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue
        let keyBoardRect = value.cgRectValue
        // 得到键盘高度
        let keyBoardHeight = keyBoardRect.size.height
        // 得到键盘弹出所需时间
        let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey] as! NSNumber
    }

删除键盘监听

deinit {
        HWPrint("释放")
        // 删除键盘监听
        HWPrint("删除键盘监听")
        NotificationCenter.default.removeObserver(self)
    }

未整理

// MARK: - 键盘事件
    func initKeyboardObserver()  {
        NotificationCenter.default.removeObserver(self)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(notification:)), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
        
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardDidShow(notification:)), name: NSNotification.Name.UIKeyboardDidShow, object: nil)
        
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(notification:)), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
        
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardDidHide(notification:)), name: NSNotification.Name.UIKeyboardDidHide, object: nil)
    }

 @objc func keyboardWillShow(notification:NSNotification){
        weak var weakSelf = self // 弱引用
        //获取userInfo
        let kbInfo = notification.userInfo
        //获取键盘的size
        let kbRect = (kbInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue
        //键盘弹出的时间
        let duration = kbInfo?[UIKeyboardAnimationDurationUserInfoKey] as? Double
        if duration != nil {
            UIView.animate(withDuration: duration!, animations: {
                weakSelf!.frame = CGRect(x: 0, y: (weakSelf!.HWScreenH()-205-kbRect!.size.height), width: weakSelf!.HWScreenW(), height: 205)
                weakSelf!.layoutIfNeeded()
                weakSelf!.layoutSubviews()
            })
        } else {
            UIView.animate(withDuration: 2.5, animations: {
                weakSelf!.frame = CGRect(x: 0, y: (weakSelf!.HWScreenH()-205-260), width: weakSelf!.HWScreenW(), height: 205)
                weakSelf!.layoutIfNeeded()
                weakSelf!.layoutSubviews()
            })
        }
    }
    
    @objc func keyboardDidShow(notification:NSNotification){
    }
    @objc func keyboardWillHide(notification:NSNotification){
        weak var weakSelf = self // 弱引用
        UIView.animate(withDuration: 3, animations: {
            weakSelf!.frame = CGRect(x: 0, y: (weakSelf!.HWScreenH()-205), width: weakSelf!.HWScreenW(), height: 205)
            weakSelf!.layoutIfNeeded()
            weakSelf!.layoutSubviews()
        })
    }
    @objc func keyboardDidHide(notification:NSNotification){
    }