iOS键盘事件

UIKeyboard

【iOS中有关键盘事件】

let notificationCenter = NSNotificationCenter.defaultCenter()
        notificationCenter.addObserver(self, selector: "adjustForKeyboard:", name: UIKeyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: "adjustForKeyboard:", name: UIKeyboardWillChangeFrameNotification, object: nil)


func adjustForKeyboard(notification: NSNotification) {
        let userInfo = notification.userInfo!
        
        let keyboardScreenEndFrame = (userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue).CGRectValue()
        let keyboardViewEndFrame = view.convertRect(keyboardScreenEndFrame, fromView: view.window)
        
        if notification.name == UIKeyboardWillHideNotification {
            script.contentInset = UIEdgeInsetsZero
        }else {
            script.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardViewEndFrame.height, right: 0)
        }
        
        script.scrollIndicatorInsets = script.contentInset
        let selectedRange = script.selectedRange
        script.scrollRangeToVisible(selectedRange)
    }

PS： 其中script为UITextView