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‎.github/workflows/test.yml‎

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# https://github.com/actions/virtual-environments
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name: GitHub Actions
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on:
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pull_request:
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push:
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branches:
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- main
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jobs:
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test:
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name: Test on macOS
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runs-on: macos-10.15
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strategy:
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matrix:
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xcode_version:
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- "12.4"
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env:
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DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode_version }}.app
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LEGACY_XCODE_APP: /Applications/Xcode_11.2.1.app
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LEGACY_TARGET_OS: 13.2.2
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LEGACY_RUNTIME_NAME: com.apple.CoreSimulator.SimRuntime.iOS-13-2
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LEGACY_TARGET_DEVICE: iPhone 11 Pro
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steps:
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- uses: actions/checkout@v2
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- name: Show environments
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run: |
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swift --version
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xcodebuild -version
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pod --version
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- name: Podspec lint
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run: pod lib lint Hooks.podspec --allow-warnings --verbose
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- name: Prepare legacy OS simulator
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run: |
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sudo mkdir -p /Library/Developer/CoreSimulator/Profiles/Runtimes
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sudo ln -s $LEGACY_XCODE_APP/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime /Library/Developer/CoreSimulator/Profiles/Runtimes/iOS\ $LEGACY_TARGET_OS.simruntime
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xcrun simctl list runtimes
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xcrun simctl list devices $LEGACY_TARGET_OS
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- name: Test for macOS
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run: set -o pipefail && xcodebuild build-for-testing test-without-building -scheme Hooks -configuration Release ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Test for iOS
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run: set -o pipefail && xcodebuild build-for-testing test-without-building -scheme Hooks -configuration Release -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 12 Pro' ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Test for tvOS
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run: set -o pipefail && xcodebuild build-for-testing test-without-building -scheme Hooks -configuration Release -sdk appletvsimulator -destination 'platform=tvOS Simulator,name=Apple TV' ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Build for watchOS
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run: set -o pipefail && xcodebuild build -scheme Hooks -configuration Release -sdk watchsimulator -destination 'platform=watchOS Simulator,name=Apple Watch Series 6 - 44mm' ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Build BasicExample
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run: set -o pipefail && xcodebuild build -scheme BasicExample -configuration Release -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 12 Pro' ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Build LegacyExample
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run: set -o pipefail && xcodebuild build -scheme LegacyExample -configuration Release -sdk iphonesimulator -destination "platform=iOS Simulator,name=$LEGACY_TARGET_DEVICE,OS=$LEGACY_TARGET_OS" ENABLE_TESTABILITY=YES | xcpretty -c
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- name: Build for Package.swift
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run: set -o pipefail && rm -rf SwiftUI-Hooks.xcodeproj && xcodebuild build -scheme Hooks -configuration Release -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 12 Pro' ENABLE_TESTABILITY=YES | xcpretty -c

‎.gitignore‎

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.DS_Store
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*/build/*
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*.pbxuser
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!default.pbxuser
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*.mode1v3
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!default.mode1v3
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*.mode2v3
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!default.mode2v3
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*.perspectivev3
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!default.perspectivev3
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xcuserdata
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profile
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*.moved-aside
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DerivedData
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.idea/
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*.hmap
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*.xccheckout
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*.xcuserstate
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build/
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archive/
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*.xcframework
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## Gem
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.bundle
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vendor
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## npm
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node_modules
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## Carthage
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Carthage/Build
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## CocoaPods
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Pods/
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## SwiftPM
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.swiftpm
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.build

‎.swift-format.json‎

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{
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"version": 1,
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"indentation": {
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"spaces": 4
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},
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"fileScopedDeclarationPrivacy": {
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"accessLevel": "private"
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},
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"indentConditionalCompilationBlocks": true,
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"lineBreakAroundMultilineExpressionChainComponents": true,
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"lineBreakBeforeControlFlowKeywords": true,
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"lineBreakBeforeEachArgument": true,
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"lineBreakBeforeEachGenericRequirement": true,
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"lineLength": 150,
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"maximumBlankLines": 1,
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"prioritizeKeepingFunctionOutputTogether": false,
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"respectsExistingLineBreaks": true,
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"rules": {
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"AllPublicDeclarationsHaveDocumentation": true,
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"AlwaysUseLowerCamelCase": true,
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"AmbiguousTrailingClosureOverload": true,
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"BeginDocumentationCommentWithOneLineSummary": false,
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"DoNotUseSemicolons": true,
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"DontRepeatTypeInStaticProperties": true,
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"FileprivateAtFileScope": true,
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"FullyIndirectEnum": true,
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"GroupNumericLiterals": true,
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"IdentifiersMustBeASCII": true,
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"NeverForceUnwrap": true,
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"NeverUseForceTry": true,
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"NeverUseImplicitlyUnwrappedOptionals": true,
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"NoAccessLevelOnExtensionDeclaration": false,
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"NoBlockComments": true,
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"NoCasesWithOnlyFallthrough": true,
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"NoEmptyTrailingClosureParentheses": true,
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"NoLabelsInCasePatterns": true,
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"NoLeadingUnderscores": false,
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"NoParensAroundConditions": true,
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"NoVoidReturnOnFunctionSignature": true,
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"OneCasePerLine": true,
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"OneVariableDeclarationPerLine": true,
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"OnlyOneTrailingClosureArgument": true,
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"OrderedImports": true,
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"ReturnVoidInsteadOfEmptyTuple": true,
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"UseLetInEveryBoundCaseVariable": true,
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"UseShorthandTypeNames": true,
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"UseSingleLinePropertyGetter": true,
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"UseSynthesizedInitializer": false,
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"UseTripleSlashForDocumentationComments": true,
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"ValidateDocumentationComments": false
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}
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}

‎.version‎

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0.0.1

‎Examples/Basic/APIRequestPage.swift‎

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import Hooks
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import SwiftUI
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struct Post: Codable {
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let id: Int
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let title: String
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let body: String
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}
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func useFetchPosts() -> (status: AsyncStatus<[Post], Error>, fetch: () -> Void) {
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let url = URL(string: "https://jsonplaceholder.typicode.com/posts").unsafelyUnwrapped
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let (status, subscribe) = usePublisherSubscribe {
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URLSession.shared.dataTaskPublisher(for: url)
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.map(\.data)
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.decode(type: [Post].self, decoder: JSONDecoder())
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.receive(on: DispatchQueue.main)
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}
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return (status: status, fetch: subscribe)
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}
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struct APIRequestPage: HookView {
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var hookBody: some View {
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let (status, fetch) = useFetchPosts()
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return ScrollView {
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VStack {
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switch status {
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case .running:
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ProgressView()
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case .success(let posts):
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postRows(posts)
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case .failure(let error):
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errorRow(error, retry: fetch)
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case .pending:
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EmptyView()
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}
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}
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.padding(.vertical, 16)
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.padding(.horizontal, 24)
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}
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.navigationTitle("API Request")
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.background(Color(.systemBackground).ignoresSafeArea())
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.onAppear(perform: fetch)
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}
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func postRows(_ posts: [Post]) -> some View {
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ForEach(posts, id: \.id) { post in
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VStack(alignment: .leading) {
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Text(post.title).bold()
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Text(post.body).padding(.vertical, 16)
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Divider()
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}
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.frame(maxWidth: .infinity)
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}
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}
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func errorRow(_ error: Error, retry: @escaping () -> Void) -> some View {
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VStack {
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Text("Error: \(error.localizedDescription)").fixedSize(horizontal: false, vertical: true)
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Divider()
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Button("Refresh", action: retry)
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}
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}
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}

‎Examples/Basic/App.swift‎

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import SwiftUI
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@main
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struct HooksApp: App {
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var body: some Scene {
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WindowGroup {
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IndexPage()
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}
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}
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}

‎Examples/Basic/CounterPage.swift‎

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import Hooks
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import SwiftUI
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struct CounterPage: HookView {
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var hookBody: some View {
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let count = useState(0)
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let isAutoIncrement = useState(false)
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useEffect(.preserved(by: isAutoIncrement.wrappedValue)) {
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guard isAutoIncrement.wrappedValue else { return nil }
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let timer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: true) { _ in
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count.wrappedValue += 1
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}
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return timer.invalidate
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}
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return VStack(spacing: 50) {
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Text(String(format: "%02d", count.wrappedValue))
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.lineLimit(1)
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.minimumScaleFactor(0.1)
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.font(.system(size: 100, weight: .heavy, design: .rounded))
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.padding(30)
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.frame(width: 200, height: 200)
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.background(Color(.secondarySystemBackground))
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.shadow(color: Color(.sRGBLinear, white: 0, opacity: 0.2), radius: 3, y: 3)
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Stepper(value: count, in: 0...(.max)) { EmptyView() }.fixedSize()
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Toggle("Auto +", isOn: isAutoIncrement).fixedSize()
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}
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.navigationTitle("Counter")
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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.background(Color(.systemBackground).ignoresSafeArea())
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}
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}
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struct CounterPage_Previews: PreviewProvider {
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static var previews: some View {
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CounterPage()
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}
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}

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