├── .gitignore ├── 1.gif ├── Card ├── Card.xcodeproj │ ├── project.pbxproj │ └── project.xcworkspace │ │ ├── contents.xcworkspacedata │ │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist └── Card │ ├── Assets.xcassets │ ├── AccentColor.colorset │ │ └── Contents.json │ ├── AppIcon.appiconset │ │ └── Contents.json │ └── Contents.json │ ├── Card.entitlements │ ├── CardApp.swift │ ├── CardView.swift │ ├── ContentView.swift │ ├── Info.plist │ ├── Preview Content │ └── Preview Assets.xcassets │ │ └── Contents.json │ └── SwipeCardView.swift ├── LICENSE └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## User settings 6 | xcuserdata/ 7 | 8 | ## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9) 9 | *.xcscmblueprint 10 | *.xccheckout 11 | 12 | ## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4) 13 | build/ 14 | DerivedData/ 15 | *.moved-aside 16 | *.pbxuser 17 | !default.pbxuser 18 | *.mode1v3 19 | !default.mode1v3 20 | *.mode2v3 21 | !default.mode2v3 22 | *.perspectivev3 23 | !default.perspectivev3 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | 28 | ## App packaging 29 | *.ipa 30 | *.dSYM.zip 31 | *.dSYM 32 | 33 | ## Playgrounds 34 | timeline.xctimeline 35 | playground.xcworkspace 36 | 37 | # Swift Package Manager 38 | # 39 | # Add this line if you want to avoid checking in source code from Swift Package Manager dependencies. 40 | # Packages/ 41 | # Package.pins 42 | # Package.resolved 43 | # *.xcodeproj 44 | # 45 | # Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata 46 | # hence it is not needed unless you have added a package configuration file to your project 47 | # .swiftpm 48 | 49 | .build/ 50 | 51 | # CocoaPods 52 | # 53 | # We recommend against adding the Pods directory to your .gitignore. However 54 | # you should judge for yourself, the pros and cons are mentioned at: 55 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 56 | # 57 | # Pods/ 58 | # 59 | # Add this line if you want to avoid checking in source code from the Xcode workspace 60 | # *.xcworkspace 61 | 62 | # Carthage 63 | # 64 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 65 | # Carthage/Checkouts 66 | 67 | Carthage/Build/ 68 | 69 | # Accio dependency management 70 | Dependencies/ 71 | .accio/ 72 | 73 | # fastlane 74 | # 75 | # It is recommended to not store the screenshots in the git repo. 76 | # Instead, use fastlane to re-generate the screenshots whenever they are needed. 77 | # For more information about the recommended setup visit: 78 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 79 | 80 | fastlane/report.xml 81 | fastlane/Preview.html 82 | fastlane/screenshots/**/*.png 83 | fastlane/test_output 84 | 85 | # Code Injection 86 | # 87 | # After new code Injection tools there's a generated folder /iOSInjectionProject 88 | # https://github.com/johnno1962/injectionforxcode 89 | 90 | iOSInjectionProject/ 91 | -------------------------------------------------------------------------------- /1.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/zjinhu/CardStack-SwiftUI/4f2fdae6bb34591cb468c8c1ed94ff1af79c7aa5/1.gif -------------------------------------------------------------------------------- /Card/Card.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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311 | PRODUCT_BUNDLE_IDENTIFIER = hu.Card; 312 | PRODUCT_NAME = "$(TARGET_NAME)"; 313 | SUPPORTS_MACCATALYST = YES; 314 | SWIFT_VERSION = 5.0; 315 | TARGETED_DEVICE_FAMILY = "1,2"; 316 | }; 317 | name = Release; 318 | }; 319 | /* End XCBuildConfiguration section */ 320 | 321 | /* Begin XCConfigurationList section */ 322 | 812463B325BFB7AF00138267 /* Build configuration list for PBXProject "Card" */ = { 323 | isa = XCConfigurationList; 324 | buildConfigurations = ( 325 | 812463C525BFB7B000138267 /* Debug */, 326 | 812463C625BFB7B000138267 /* Release */, 327 | ); 328 | defaultConfigurationIsVisible = 0; 329 | defaultConfigurationName = Release; 330 | }; 331 | 812463C725BFB7B000138267 /* Build configuration list for PBXNativeTarget "Card" */ = { 332 | isa = XCConfigurationList; 333 | buildConfigurations = ( 334 | 812463C825BFB7B000138267 /* Debug */, 335 | 812463C925BFB7B000138267 /* Release */, 336 | ); 337 | defaultConfigurationIsVisible = 0; 338 | defaultConfigurationName = Release; 339 | }; 340 | /* End XCConfigurationList section */ 341 | }; 342 | rootObject = 812463B025BFB7AF00138267 /* Project object */; 343 | } 344 | -------------------------------------------------------------------------------- /Card/Card.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Card/Card.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /Card/Card/Assets.xcassets/AccentColor.colorset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "colors" : [ 3 | { 4 | "idiom" : "universal" 5 | } 6 | ], 7 | "info" : { 8 | "author" : "xcode", 9 | "version" : 1 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /Card/Card/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "scale" : "2x", 6 | "size" : "20x20" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "scale" : "3x", 11 | "size" : "20x20" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "scale" : "2x", 16 | "size" : "29x29" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "scale" : "3x", 21 | "size" : "29x29" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "scale" : "2x", 26 | "size" : "40x40" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "scale" : "3x", 31 | "size" : "40x40" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "scale" : "2x", 36 | "size" : "60x60" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "scale" : "3x", 41 | "size" : "60x60" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "scale" : "1x", 46 | "size" : "20x20" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "scale" : "2x", 51 | "size" : "20x20" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "scale" : "1x", 56 | "size" : "29x29" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "scale" : "2x", 61 | "size" : "29x29" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "scale" : "1x", 66 | "size" : "40x40" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "scale" : "2x", 71 | "size" : "40x40" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "scale" : "1x", 76 | "size" : "76x76" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "scale" : "2x", 81 | "size" : "76x76" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "scale" : "2x", 86 | "size" : "83.5x83.5" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "scale" : "1x", 91 | "size" : "1024x1024" 92 | } 93 | ], 94 | "info" : { 95 | "author" : "xcode", 96 | "version" : 1 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /Card/Card/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /Card/Card/Card.entitlements: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | com.apple.security.app-sandbox 6 | 7 | com.apple.security.network.client 8 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /Card/Card/CardApp.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CardApp.swift 3 | // Card 4 | // 5 | // Created by iOS on 2021/1/26. 6 | // 7 | 8 | import SwiftUI 9 | 10 | @main 11 | struct CardApp: App { 12 | var body: some Scene { 13 | WindowGroup { 14 | ContentView() 15 | } 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Card/Card/CardView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CardView.swift 3 | // Card 4 | // 5 | // Created by iOS on 2021/1/26. 6 | // 7 | 8 | import SwiftUI 9 | 10 | public let CardNotification = "CardNotification" 11 | 12 | public struct CardStack: View where Data.Index: Hashable { 13 | 14 | @State var index: Data.Index 15 | 16 | private let data: Data 17 | private let id: KeyPath 18 | private let content: (Data.Element) -> Content 19 | 20 | public init(index: Int, 21 | data: Data, 22 | id: KeyPath, 23 | @ViewBuilder content: @escaping (Data.Element) -> Content) { 24 | 25 | self.data = data 26 | self.id = id 27 | self.content = content 28 | self._index = State(initialValue: index as! Data.Index) 29 | } 30 | 31 | public var body: some View { 32 | ZStack { 33 | ForEach(data.indices.reversed(), id: \.self) { index -> AnyView in 34 | let relativeIndex = self.data.distance(from: self.index, to: index) 35 | if relativeIndex >= 0 && relativeIndex < 5 { 36 | return AnyView(self.card(index: index, relativeIndex: relativeIndex)) 37 | } else { 38 | return AnyView(EmptyView()) 39 | } 40 | } 41 | } 42 | .onReceive(NotificationCenter.default.publisher(for: Notification.Name.init(CardNotification)), perform: { noti in 43 | if let num : Int = noti.object as? Int { 44 | index = num as! Data.Index 45 | } 46 | }) 47 | } 48 | 49 | private func card(index: Data.Index, relativeIndex: Int) -> some View { 50 | CardView(onSwipe: { 51 | self.index = self.data.index(after: index) 52 | }, content: { 53 | self.content(self.data[index]) 54 | .offset(x: 0,y: CGFloat(relativeIndex) * 10) 55 | .scaleEffect(1 - 0.1 * CGFloat(relativeIndex),anchor: .bottom) 56 | }) 57 | } 58 | } 59 | 60 | extension CardStack where Data.Element: Identifiable, ID == Data.Element.ID { 61 | 62 | public init(index: Int, 63 | data: Data, 64 | @ViewBuilder content: @escaping (Data.Element) -> Content ) { 65 | self.init(index: index, data: data, id: \Data.Element.id, content: content) 66 | } 67 | 68 | } 69 | 70 | extension CardStack where Data.Element: Hashable, ID == Data.Element { 71 | 72 | public init(index: Int, 73 | data: Data, 74 | @ViewBuilder content: @escaping (Data.Element) -> Content ) { 75 | self.init(index: index, data: data, id: \Data.Element.self, content: content) 76 | } 77 | 78 | } 79 | 80 | 81 | struct CardView: View { 82 | 83 | @State private var offset: CGSize = .zero 84 | private var contentView: () -> Content 85 | private let swipe: () -> Void 86 | 87 | init(onSwipe: @escaping () -> Void, 88 | @ViewBuilder content: @escaping () -> Content) { 89 | contentView = content 90 | swipe = onSwipe 91 | } 92 | 93 | var body: some View { 94 | GeometryReader{ geo in 95 | contentView() 96 | .offset(offset) 97 | .rotationEffect(.degrees(Double(offset.width/geo.size.width))) 98 | .gesture(dragGesture(geo)) 99 | } 100 | .animation(.spring()) 101 | } 102 | 103 | private func dragGesture(_ geometry: GeometryProxy) -> some Gesture { 104 | DragGesture() 105 | .onChanged { value in 106 | offset = value.translation 107 | } 108 | .onEnded { value in 109 | offset = value.translation 110 | 111 | let threshold = min(geometry.size.width, geometry.size.height) / 2 112 | let distance = hypot(offset.width, offset.height) 113 | 114 | if distance > threshold { 115 | withAnimation { swipe()} 116 | } else { 117 | withAnimation { offset = .zero} 118 | } 119 | } 120 | } 121 | } 122 | -------------------------------------------------------------------------------- /Card/Card/ContentView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ContentView.swift 3 | // Card 4 | // 5 | // Created by iOS on 2021/1/26. 6 | // 7 | 8 | import SwiftUI 9 | 10 | struct Card : Hashable{ 11 | let number: String 12 | } 13 | 14 | struct ContentView: View { 15 | 16 | @State private var cards = [Card]() 17 | 18 | var body: some View { 19 | 20 | VStack{ 21 | CardStack(index: 1, data: cards) { date in 22 | 23 | GeometryReader { geo in 24 | ZStack{ 25 | RoundedRectangle(cornerRadius: 25, style: .continuous) 26 | .foregroundColor(/*@START_MENU_TOKEN@*/.white/*@END_MENU_TOKEN@*/) 27 | 28 | Text("\(date.number)") 29 | } 30 | 31 | } 32 | .shadow(radius: 4) 33 | .padding(.all, 10.0) 34 | 35 | 36 | }.onAppear(perform: loadData) 37 | 38 | Button(action: { 39 | NotificationCenter.default.post(name: NSNotification.Name.init(CardNotification), object: 5) 40 | }, label: { 41 | Text("Button5") 42 | }) 43 | 44 | Button(action: { 45 | NotificationCenter.default.post(name: NSNotification.Name.init(CardNotification), object: 2) 46 | }, label: { 47 | Text("Button2") 48 | }) 49 | } 50 | } 51 | 52 | 53 | func loadData() { 54 | 55 | cards = [Card(number: "1"), 56 | Card(number: "2"), 57 | Card(number: "3"), 58 | Card(number: "4"), 59 | Card(number: "5"), 60 | Card(number: "6"), 61 | Card(number: "7"), 62 | Card(number: "8"), 63 | Card(number: "9"), 64 | Card(number: "10"), 65 | Card(number: "11"), 66 | Card(number: "12"), 67 | Card(number: "13"), 68 | Card(number: "14"), 69 | Card(number: "15"), 70 | Card(number: "16"), 71 | Card(number: "17"), 72 | Card(number: "18"), 73 | Card(number: "19"), 74 | Card(number: "20") 75 | ] 76 | } 77 | } 78 | 79 | struct ContentView_Previews: PreviewProvider { 80 | static var previews: some View { 81 | ContentView() 82 | } 83 | } 84 | -------------------------------------------------------------------------------- /Card/Card/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UIApplicationSceneManifest 24 | 25 | UIApplicationSupportsMultipleScenes 26 | 27 | 28 | UIApplicationSupportsIndirectInputEvents 29 | 30 | UILaunchScreen 31 | 32 | UIRequiredDeviceCapabilities 33 | 34 | armv7 35 | 36 | UISupportedInterfaceOrientations 37 | 38 | UIInterfaceOrientationPortrait 39 | UIInterfaceOrientationLandscapeLeft 40 | UIInterfaceOrientationLandscapeRight 41 | 42 | UISupportedInterfaceOrientations~ipad 43 | 44 | UIInterfaceOrientationPortrait 45 | UIInterfaceOrientationPortraitUpsideDown 46 | UIInterfaceOrientationLandscapeLeft 47 | UIInterfaceOrientationLandscapeRight 48 | 49 | 50 | 51 | -------------------------------------------------------------------------------- /Card/Card/Preview Content/Preview Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /Card/Card/SwipeCardView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SwipeCardView.swift 3 | // Card 4 | // 5 | // Created by iOS on 2021/1/26. 6 | // 7 | 8 | import SwiftUI 9 | 10 | struct SwipeCardView: View { 11 | @State var offset = CGSize.zero 12 | let card: Card 13 | var removal: (() -> Void)? = nil 14 | 15 | var body: some View { 16 | ZStack{ 17 | RoundedRectangle(cornerRadius: 25, style: .continuous) 18 | .background(Color.red) 19 | } 20 | .frame(width: 250, height: 450) 21 | .rotationEffect(.degrees(Double(offset.width/250))) 22 | .offset(offset) 23 | .gesture( 24 | DragGesture() 25 | .onChanged { gesture in 26 | self.offset = gesture.translation 27 | } 28 | 29 | .onEnded { _ in 30 | if abs(self.offset.width) > 100 { 31 | // 移除卡片 32 | self.removal?() 33 | } else { 34 | self.offset = .zero 35 | } 36 | 37 | 38 | } 39 | 40 | ) 41 | .animation(.spring()) 42 | } 43 | } 44 | 45 | struct SwipeCardView_Previews: PreviewProvider { 46 | static var previews: some View { 47 | SwipeCardView(card: Card(prompt: "", answer: "")) 48 | } 49 | } 50 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2021 jinhu 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # CardStack-SwiftUI 2 | SwiftUI实现的堆叠卡片，可以拖动切换下一张卡片 3 | 4 | ![](1.gif) --------------------------------------------------------------------------------