swift2.0 动态获取键盘高度 Get KeyboardHeight

概述列表内容 监听键盘起落 下面是可以监听到得四种状态 UIKeyboardWillShowNotification: String UIKeyboardDidShowNotification: String UIKeyboardWillHideNotification: String UIKeyboardDidHideNotification: String NSNotificationCenter 列表内容

监听键盘起落 下面是可以监听到得四种状态

UIKeyboarDWillShowNotification: String
UIKeyboardDIDShowNotification: String
UIKeyboarDWillHIDeNotification: String
UIKeyboardDIDHIDeNotification: String

NSNotificationCenter.defaultCenter().addobserver(self,selector: "keyboarDWillAppear:",name: UIKeyboarDWillShowNotification,object: nil)NSNotificationCenter.defaultCenter().addobserver(self,selector: "keyboarDWilldisappear:",name:UIKeyboarDWillHIDeNotification,object: nil)

func keyboarDWillAppear(notification: NSNotification) {        // 获取键盘信息        let keyboardinfo = notification.userInfo![UIKeyboardFrameBeginUserInfoKey]        let keyboardheight:CGfloat = (keyboardinfo?.CGRectValue.size.height)!        print("键盘d起")        print(keyboardheight)    }    func keyboarDWilldisappear(notification:NSNotification){        print("键盘落下")    }

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