[英]View above keyboard don't show up
当键盘显示时,我想在键盘上方有一个带textField和一个发送按钮的View。 但这是行不通的。
我已经在代码中实现了这一点:
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource = self
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide(_ :)), name: UIResponder.keyboardWillHideNotification, object: nil)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
tabBarController?.tabBar.isHidden = true
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
tabBarController?.tabBar.isHidden = false
}
// MARK: - Keyboard stuff
@objc func keyboardWillShow(_ notification: NSNotification) {
let keyboardFrame = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as AnyObject).cgRectValue
print("hier ist \(keyboardFrame!)")
UIView.animate(withDuration: 0.1) {
self.bottomConstraint.constant = keyboardFrame!.height
self.view.layoutIfNeeded()
}
}
@objc func keyboardWillHide(_ notification: NSNotification) {
UIView.animate(withDuration: 0.1) {
self.bottomConstraint.constant = 0
self.view.layoutIfNeeded()
}
}
签出textField inputAccessoryView。 有一个教程在这里 ,说明你想要做什么。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.