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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,56 @@ | ||
| // | ||
| // Extensions.swift | ||
| // Laffey | ||
| // | ||
| // Created by 戴元平 on 8/15/20. | ||
| // Copyright © 2020 Wei Dai. All rights reserved. | ||
| // | ||
|
|
||
| import SwiftUI | ||
|
|
||
| public extension Color { | ||
| static let salmon = Color(rgb: 0xFF7E79) | ||
|
|
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| init(red: Int, green: Int, blue: Int) { | ||
| assert(red >= 0 && red <= 255, "Invalid red component") | ||
| assert(green >= 0 && green <= 255, "Invalid green component") | ||
| assert(blue >= 0 && blue <= 255, "Invalid blue component") | ||
|
|
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| self.init(red: Double(red) / 255.0, green: Double(green) / 255.0, blue: Double(blue) / 255.0) | ||
| } | ||
|
|
||
| init(rgb: Int) { | ||
| self.init( | ||
| red: (rgb >> 16) & 0xFF, | ||
| green: (rgb >> 8) & 0xFF, | ||
| blue: rgb & 0xFF | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| struct KeyboardResponsiveModifier: ViewModifier { | ||
| @State private var offset: CGFloat = 0 | ||
|
|
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| func body(content: Content) -> some View { | ||
| content | ||
| .padding(.bottom, offset) | ||
| .onAppear { | ||
| NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillShowNotification, object: nil, queue: .main) { notif in | ||
| let value = notif.userInfo![UIResponder.keyboardFrameEndUserInfoKey] as! CGRect | ||
| let height = value.height | ||
| let bottomInset = UIApplication.shared.windows.first?.safeAreaInsets.bottom | ||
| self.offset = height - (bottomInset ?? 0) | ||
| } | ||
|
|
||
| NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillHideNotification, object: nil, queue: .main) { notif in | ||
| self.offset = 0 | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension View { | ||
| func keyboardResponsive() -> ModifiedContent<Self, KeyboardResponsiveModifier> { | ||
| return modifier(KeyboardResponsiveModifier()) | ||
| } | ||
| } |
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