swift键盘处理方式
发布时间:2020-12-14 01:43:56 所属栏目:百科 来源:网络整理
导读://MARK:属性列表 var toolBarCons: NSLayoutConstraint? //MARK:视图生命周期 override func viewDidLoad() { super.viewDidLoad() //注册通知 NSNotificationCenter.defaultCenter().addObserver(self,selector: "keyboardChangeAction:",name: UIKeyboardW
//MARK:属性列表 //MARK:视图生命周期 override func viewDidLoad() {super.viewDidLoad() //注册通知 NSNotificationCenter.defaultCenter().addObserver(self,selector: "keyboardChangeAction:",name: UIKeyboardWillChangeFrameNotification,object: nil) } override func viewDidAppear(animated: Bool) { super.viewDidAppear(animated) //弹出键盘 textView.becomeFirstResponder() } deinit{ //移除通知 NSNotificationCenter.defaultCenter().removeObserver(self) } //MARK:自定义方法 //通知调用方法 @objc private func keyboardChangeAction(notification: NSNotification){ let keyboardRect = notification.userInfo![UIKeyboardFrameEndUserInfoKey]!.CGRectValue let duration = notification.userInfo![UIKeyboardAnimationDurationUserInfoKey]!.doubleValue //取到你自己toolBar的约束 toolBarCons?.constant = -UIScreen.mainScreen().bounds.size.height + keyboardRect.origin.y UIView.animateWithDuration(duration) { () -> Void in self.view.layoutIfNeeded() } } //懒加载 -- 工具栏 private lazy var toolBar:UIToolbar = { let toolBar = UIToolbar() toolBar.backgroundColor = UIColor(white: 0.8,alpha: 1) return toolBar }()(编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |