VCInputId.swift
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import UIKit
class VCInputId: UIViewController {
@IBOutlet weak var edtId: UITextField!
@IBOutlet weak var topMargin: NSLayoutConstraint!
static func getInstance() -> VCInputId {
let storyboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let vcOpen = storyboard.instantiateViewController(withIdentifier: "VCInputId") as! VCInputId
return vcOpen
}
override func viewDidLoad() {
super.viewDidLoad()
registerKeyBoardEvent()
edtId.text = getVcRoot()?.id
}
@IBAction func btnUnknowClick(_ sender: Any) {
}
@IBAction func btnNextClick(_ sender: Any) {
_ = getVcRoot()?.changeCurrentController(VCSendTraoDoi.getInstance())
}
@IBAction func edtActionTrigerClick(_ sender: Any) {
edtId.endEditing(true)
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
unregisterKeyBoardEvent()
}
func getVcRoot() -> VCRoot? {
return self.parent as? VCRoot
}
//region ======= keyboard process ====
private func registerKeyBoardEvent() {
NotificationCenter.default.setObserver(self, selector: #selector(VCInputId.keyboardWillShow(_:)), name: NSNotification.Name.UIKeyboardWillShow.rawValue, object: nil);
NotificationCenter.default.setObserver(self, selector: #selector(VCInputId.keyboardWillHide(_:)), name: NSNotification.Name.UIKeyboardWillHide.rawValue, object: nil);
}
private func unregisterKeyBoardEvent() {
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillHide, object: nil)
}
func keyboardWillShow(_ notification: Notification) {
guard let userInfo = notification.userInfo else {
return
}
guard let keyboardFrame = (userInfo[UIKeyboardFrameEndUserInfoKey] as AnyObject).cgRectValue else {
return
}
guard let duration = (userInfo[UIKeyboardAnimationDurationUserInfoKey] as AnyObject).doubleValue else {
return
}
topMargin.constant = 50 - keyboardFrame.height
UIView.animate(withDuration: duration, delay: 0.0, usingSpringWithDamping: 1.0, initialSpringVelocity: 0.5, options: .curveLinear, animations: { () -> Void in
self.view.layoutIfNeeded()
}, completion: nil)
}
func keyboardWillHide(_ notification: Notification) {
guard let userInfo = notification.userInfo else {
return
}
guard let duration = (userInfo[UIKeyboardAnimationDurationUserInfoKey] as AnyObject).doubleValue else {
return
}
topMargin.constant = 50
UIView.animate(withDuration: duration, delay: 0.0, usingSpringWithDamping: 1.0, initialSpringVelocity: 0.5, options: .curveLinear, animations: { () -> Void in
self.view.layoutIfNeeded()
}, completion: nil)
}
//endregion
}