-
Oliver Wiese authoredOliver Wiese authored
Code owners
Assign users and groups as approvers for specific file changes. Learn more.
KeyboardChecker.swift 1.13 KiB
//
// KeyboardChecker.swift
// enzevalos_iphone
//
// Created by hanneh00 on 17.03.20.
// Copyright © 2020 fu-berlin. All rights reserved.
//
import SwiftUI
final class KeyboardResponder: ObservableObject {
private var notificationCenter: NotificationCenter
@Published private(set) var currentHeight: CGFloat = 0
init(center: NotificationCenter = .default) {
notificationCenter = center
notificationCenter.addObserver(self, selector: #selector(keyBoardWillShow(notification:)), name: UIResponder.keyboardWillShowNotification, object: nil)
notificationCenter.addObserver(self, selector: #selector(keyBoardWillHide(notification:)), name: UIResponder.keyboardWillHideNotification, object: nil)
}
deinit {
notificationCenter.removeObserver(self)
}
@objc func keyBoardWillShow(notification: Notification) {
if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
currentHeight = keyboardSize.height
}
}
@objc func keyBoardWillHide(notification: Notification) {
currentHeight = 0
}
}