- 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("键盘弹起")
print(keyboardheight)
}
func keyboardWilldisappear(notification:NSNotification){
print("键盘落下")
}