Version 1.0.0
This commit is contained in:
Daniel Arantes Loverde
274
Sources/LCEssentials/SwiftUI/LCENavigationView.swift
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274
Sources/LCEssentials/SwiftUI/LCENavigationView.swift
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//
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// Copyright (c) 2024 Loverde Co.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#if canImport(SwiftUI)
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import SwiftUI
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@available(iOS 15, *)
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class LCENavigationState: ObservableObject {
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@Published var rightButtonImage: AnyView? = nil
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@Published var rightButtonText: Text = Text("")
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@Published var rightButtonAction: () -> Void = {}
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@Published var leftButtonImage: AnyView? = nil
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@Published var leftButtonText: Text = Text("")
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@Published var leftButtonAction: () -> Void = {}
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@Published var hideNavigationBar: Bool = false
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@Published var title: (any View) = Text("")
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@Published var subTitle: (any View) = Text("")
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}
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@available(iOS 15, *)
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public struct LCENavigationView<Content: View>: View {
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@ObservedObject private var state: LCENavigationState
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let content: Content
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public init(
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title: (any View) = Text(""),
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subTitle: (any View) = Text(""),
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@ViewBuilder content: () -> Content
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) {
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self.content = content()
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self._state = ObservedObject(
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wrappedValue: LCENavigationState()
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)
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self.state.title = title
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self.state.subTitle = subTitle
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}
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public var body: some View {
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VStack {
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if !state.hideNavigationBar {
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NavigationBarView
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}
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content
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}
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.navigationBarHidden(true)
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}
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private var NavigationBarView: some View {
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HStack {
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NavLeftButton
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Spacer()
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TitleView
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Spacer()
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NavRightButton
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}
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.font(.headline)
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.padding()
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.background {
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Color.clear.ignoresSafeArea(edges: .top)
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}
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}
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private var TitleView: some View {
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VStack {
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AnyView(state.title)
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if (try? state.subTitle.getTag() ?? "hidden" ) != "hidden" {
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AnyView(state.subTitle)
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}
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}
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}
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private var NavLeftButton: some View {
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Button(action: state.leftButtonAction) {
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HStack {
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if let image = state.leftButtonImage {
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image
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}
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state.leftButtonText
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}
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}
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}
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private var NavRightButton: some View {
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Button(action: state.rightButtonAction) {
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HStack {
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state.rightButtonText
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if let image = state.rightButtonImage {
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image
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}
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}
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}
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}
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public func setRightButton(
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text: Text = Text(""),
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image: (any View)? = nil,
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action: @escaping () -> Void
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) -> LCENavigationView {
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if let image {
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state.rightButtonImage = AnyView(image)
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} else {
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state.rightButtonImage = nil
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}
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state.rightButtonText = text
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state.rightButtonAction = action
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if let string = state.leftButtonText.string, string.isEmpty {
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state.leftButtonText = text.foregroundColor(.clear)
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}
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if state.leftButtonImage == nil {
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state.leftButtonImage = image?.foregroundColor(.clear) as? AnyView
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}
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return self
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}
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public func setLeftButton(
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text: Text = Text(""),
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image: (any View)? = nil,
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action: @escaping () -> Void
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) -> LCENavigationView {
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if let image {
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state.leftButtonImage = AnyView(image)
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} else {
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state.leftButtonImage = nil
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}
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state.leftButtonText = text
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state.leftButtonAction = action
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if let string = state.rightButtonText.string, string.isEmpty {
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state.rightButtonText = text.foregroundColor(.clear)
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}
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if state.rightButtonImage == nil {
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state.rightButtonImage = image?.foregroundColor(.clear) as? AnyView
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}
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return self
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}
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public func setTitle(
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text: (any View) = Text(""),
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subTitle: (any View)? = nil
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) -> LCENavigationView {
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state.title = text
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state.subTitle = subTitle ?? Text("").tag("hidden")
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return self
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}
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public func hideNavigationView(_ hide: Bool) -> LCENavigationView {
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state.hideNavigationBar = hide
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return self
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}
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}
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@available(iOS 15.0, *)
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extension FormatStyle {
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func format(any value: Any) -> FormatOutput? {
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if let v = value as? FormatInput {
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return format(v)
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}
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return nil
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}
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}
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@available(iOS 15.0, *)
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extension LocalizedStringKey {
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var resolved: String? {
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let mirror = Mirror(reflecting: self)
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guard let key = mirror.descendant("key") as? String else {
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return nil
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}
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guard let args = mirror.descendant("arguments") as? [Any] else {
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return nil
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}
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let values = args.map { arg -> Any? in
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let mirror = Mirror(reflecting: arg)
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if let value = mirror.descendant("storage", "value", ".0") {
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return value
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}
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guard let format = mirror.descendant("storage", "formatStyleValue", "format") as? any FormatStyle,
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let input = mirror.descendant("storage", "formatStyleValue", "input") else {
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return nil
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}
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return format.format(any: input)
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}
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let va = values.compactMap { arg -> CVarArg? in
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switch arg {
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case let i as Int: return i
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case let i as Int64: return i
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case let i as Int8: return i
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case let i as Int16: return i
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case let i as Int32: return i
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case let u as UInt: return u
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case let u as UInt64: return u
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case let u as UInt8: return u
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case let u as UInt16: return u
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case let u as UInt32: return u
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case let f as Float: return f
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case let f as CGFloat: return f
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case let d as Double: return d
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case let o as NSObject: return o
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default: return nil
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}
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}
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if va.count != values.count {
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return nil
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}
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return String.localizedStringWithFormat(key, va)
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}
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}
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@available(iOS 15.0, *)
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extension Text {
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var string: String? {
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let mirror = Mirror(reflecting: self)
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if let s = mirror.descendant("storage", "verbatim") as? String {
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return s
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} else if let attrStr = mirror.descendant("storage", "anyTextStorage", "str") as? AttributedString {
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return String(attrStr.characters)
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} else if let key = mirror.descendant("storage", "anyTextStorage", "key") as? LocalizedStringKey {
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return key.resolved
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} else if let format = mirror.descendant("storage", "anyTextStorage", "storage", "format") as? any FormatStyle,
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let input = mirror.descendant("storage", "anyTextStorage", "storage", "input") {
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return format.format(any: input) as? String
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} else if let formatter = mirror.descendant("storage", "anyTextStorage", "formatter") as? Formatter,
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let object = mirror.descendant("storage", "anyTextStorage", "object") {
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return formatter.string(for: object)
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}
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return nil
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}
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}
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//@available(iOS 15.0, *)
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//struct LCENavigationView_Previews: PreviewProvider {
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// static var previews: some View {
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// LCENavigationView {
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// Text("Hello, World!")
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// }
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// .setTitle(text: Text("Hellow Nav Title"))
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// .setLeftButton(text: "Back") {
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// print("Button tapped!")
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// }
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// }
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//}
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#endif
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