41 lines
1.1 KiB
Swift
41 lines
1.1 KiB
Swift
//
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// KeyboardReader.swift
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// ComposeUI
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//
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// Created by Shadowfacts on 3/7/23.
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//
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#if !os(visionOS)
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import UIKit
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import Combine
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@available(iOS, obsoleted: 16.0)
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class KeyboardReader: ObservableObject {
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@Published var keyboardHeight: CGFloat = 0
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var isVisible: Bool {
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// when a hardware keyboard is connected, the height is very short, so we don't consider that being "visible"
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keyboardHeight > 72
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}
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init() {
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NotificationCenter.default.addObserver(self, selector: #selector(willShow), name: UIResponder.keyboardWillShowNotification, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(willHide), name: UIResponder.keyboardWillHideNotification, object: nil)
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}
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@objc func willShow(_ notification: Foundation.Notification) {
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let endFrame = notification.userInfo![UIResponder.keyboardFrameEndUserInfoKey] as! CGRect
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keyboardHeight = endFrame.height
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}
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@objc func willHide() {
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// sometimes willHide is called during a SwiftUI view update
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DispatchQueue.main.async {
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self.keyboardHeight = 0
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}
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}
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}
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#endif
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