动态监听键盘高度调整文本输入框

来源：互联网发布：双程网络剧土豆编辑：程序博客网时间：2024/06/06 13:03

//自定义键盘key事件

func addCustomKeyboardEvent() {

NSNotificationCenter.defaultCenter().removeObserver(self)

NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillChange:", name:UIKeyboardWillChangeFrameNotification, object:nil)

}

func keyboardWillChange(sender: NSNotification) {

let_ = UITextInputMode().primaryLanguage

let userInfo: NSDictionary = sender.userInfo!

//let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey]!.doubleValue

let keyboardFrame = userInfo[UIKeyboardFrameEndUserInfoKey]!.CGRectValue

//let newsCtr = self.childViewControllers[0] as? NewsTableController

weak var this =self

UIView.animateWithDuration(0.2, animations: { () ->Void in

if keyboardFrame.origin.y >self.view.frame.height {

this?.comment.frame.origin.y = keyboardFrame.origin.y - 41

}else {

this?.comment.frame.origin.y = keyboardFrame.origin.y - 41

}

})

}

注意监听键盘高度的方法是UIKeyboardWillChangeFrameNotification，不要写成别的，萌萌大

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