├── Camera-SwiftUI ├── Assets.xcassets │ ├── Contents.json │ ├── AccentColor.colorset │ │ └── Contents.json │ └── AppIcon.appiconset │ │ └── Contents.json ├── Preview Content │ └── Preview Assets.xcassets │ │ └── Contents.json ├── Info.plist ├── SampleCode.xcconfig ├── Camera_SwiftUIApp.swift ├── ContentView.swift ├── ViewModel.swift ├── CameraView.swift └── CameraManager.swift ├── resources ├── CreatewithSwift-Hero.gif ├── createwithswift-articles.png ├── createwithswift-followonx.png ├── createwithswift-linkedin.png └── createwithswift_icon_circle.png ├── LICENSE ├── .gitignore ├── README.md └── Camera-SwiftUI.xcodeproj └── project.pbxproj /Camera-SwiftUI/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /resources/CreatewithSwift-Hero.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/create-with-swift/Camera-capture-setup-in-SwiftUI/HEAD/resources/CreatewithSwift-Hero.gif -------------------------------------------------------------------------------- /Camera-SwiftUI/Preview Content/Preview Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /resources/createwithswift-articles.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/create-with-swift/Camera-capture-setup-in-SwiftUI/HEAD/resources/createwithswift-articles.png -------------------------------------------------------------------------------- /resources/createwithswift-followonx.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/create-with-swift/Camera-capture-setup-in-SwiftUI/HEAD/resources/createwithswift-followonx.png -------------------------------------------------------------------------------- /resources/createwithswift-linkedin.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/create-with-swift/Camera-capture-setup-in-SwiftUI/HEAD/resources/createwithswift-linkedin.png -------------------------------------------------------------------------------- /resources/createwithswift_icon_circle.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/create-with-swift/Camera-capture-setup-in-SwiftUI/HEAD/resources/createwithswift_icon_circle.png -------------------------------------------------------------------------------- /Camera-SwiftUI/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /Camera-SwiftUI/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 | -------------------------------------------------------------------------------- /Camera-SwiftUI/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "platform" : "ios", 6 | "size" : "1024x1024" 7 | } 8 | ], 9 | "info" : { 10 | "author" : "xcode", 11 | "version" : 1 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /Camera-SwiftUI/SampleCode.xcconfig: -------------------------------------------------------------------------------- 1 | // 2 | // SampleCode.xcconfig 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 28/03/24. 6 | // 7 | 8 | // Configuration settings file format documentation can be found at: 9 | // https://help.apple.com/xcode/#/dev745c5c974 10 | 11 | SAMPLE_CODE_DISAMBIGUATOR=${DEVELOPMENT_TEAM} 12 | -------------------------------------------------------------------------------- /Camera-SwiftUI/Camera_SwiftUIApp.swift: -------------------------------------------------------------------------------- 1 | // 2 | // Camera_SwiftUIApp.swift 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 27/02/24. 6 | // 7 | 8 | import SwiftUI 9 | 10 | @main 11 | struct Camera_SwiftUIApp: App { 12 | var body: some Scene { 13 | WindowGroup { 14 | ContentView() 15 | } 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Camera-SwiftUI/ContentView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ContentView.swift 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 27/02/24. 6 | // 7 | 8 | import SwiftUI 9 | 10 | struct ContentView: View { 11 | 12 | @State 13 | private var viewModel = ViewModel() 14 | 15 | var body: some View { 16 | CameraView(image: $viewModel.currentFrame) 17 | .ignoresSafeArea() 18 | } 19 | } 20 | 21 | #Preview { 22 | ContentView() 23 | } 24 | -------------------------------------------------------------------------------- /Camera-SwiftUI/ViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewModel.swift 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 27/02/24. 6 | // 7 | 8 | import Foundation 9 | import CoreImage 10 | 11 | @Observable 12 | class ViewModel { 13 | 14 | var currentFrame: CGImage? 15 | 16 | private let cameraManager = CameraManager() 17 | 18 | init() { 19 | Task { 20 | await handleCameraPreviews() 21 | } 22 | } 23 | 24 | func handleCameraPreviews() async { 25 | for await image in cameraManager.previewStream { 26 | Task { @MainActor in 27 | currentFrame = image 28 | } 29 | } 30 | } 31 | } 32 | 33 | -------------------------------------------------------------------------------- /Camera-SwiftUI/CameraView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CameraView.swift 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 27/02/24. 6 | // 7 | 8 | import SwiftUI 9 | 10 | struct CameraView: View { 11 | 12 | @Binding var image: CGImage? 13 | 14 | var body: some View { 15 | GeometryReader { geometry in 16 | if let image = image { 17 | Image(decorative: image, scale: 1) 18 | .resizable() 19 | .scaledToFit() 20 | .frame(width: geometry.size.width, 21 | height: geometry.size.height) 22 | } else { 23 | ContentUnavailableView("Camera feed interrupted", systemImage: "xmark.circle.fill") 24 | .frame(width: geometry.size.width, 25 | height: geometry.size.height) 26 | } 27 | } 28 | } 29 | } 30 | 31 | #Preview { 32 | CameraView(image: .constant(nil)) 33 | } 34 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License. 2 | 3 | Copyright (c) 2024 Create with Swift. 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. -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | 3 | .DS_Store 4 | 5 | # User settings 6 | 7 | xcuserdata/ 8 | 9 | # compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9) 10 | 11 | *.xcscmblueprint 12 | *.xccheckout 13 | 14 | # compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4) 15 | 16 | build/ 17 | DerivedData/ 18 | *.moved-aside 19 | *.pbxuser 20 | !default.pbxuser 21 | *.mode1v3 22 | !default.mode1v3 23 | *.mode2v3 24 | !default.mode2v3 25 | *.perspectivev3 26 | !default.perspectivev3 27 | 28 | # Obj-C/Swift specific 29 | 30 | *.hmap 31 | 32 | ## App packaging 33 | 34 | *.ipa 35 | *.dSYM.zip 36 | *.dSYM 37 | 38 | # Playgrounds 39 | 40 | timeline.xctimeline 41 | playground.xcworkspace 42 | 43 | # Swift Package Manager 44 | 45 | Packages/ 46 | Package.pins 47 | Package.resolved 48 | .swiftpm 49 | 50 | .build/ 51 | 52 | # CocoaPods 53 | 54 | Pods/ 55 | *.xcworkspace 56 | 57 | # Carthage 58 | 59 | Carthage/Build/ 60 | 61 | # Accio dependency management 62 | 63 | Dependencies/ 64 | .accio/ 65 | 66 | # fastlane 67 | 68 | fastlane/report.xml 69 | fastlane/Preview.html 70 | fastlane/screenshots/**/*.png 71 | fastlane/test_output 72 | 73 | # Code Injection 74 | 75 | iOSInjectionProject/ -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Camera capture setup in SwiftUI: The easiest way 2 | 3 |

4 | Ignite logo 5 |

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21 | 22 | ## Content 23 | 24 | In this short tutorial you will learn how to set a camera feed capture in a SwiftUI app. 25 | 26 | You can find numerous guides discussing how to obtain a camera feed. Let’s explore a method that works on all devices that have at least one integrated camera. 27 | 28 | You will learn the easiest and quickest method to obtain a live feed and use it in an app created with SwiftUI. It serves as a foundation for incorporating a camera feed into projects that need so. 29 | 30 | [Read the full article](www.createwithswift.com/camera-capture-setup-in-a-swiftui-app) 31 | 32 | ## License 33 | 34 | MIT License. 35 | 36 | Copyright (c) 2024 Create with Swift. 37 | 38 | Permission is hereby granted, free of charge, to any person obtaining a copy 39 | of this software and associated documentation files (the "Software"), to deal 40 | in the Software without restriction, including without limitation the rights 41 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 42 | copies of the Software, and to permit persons to whom the Software is 43 | furnished to do so, subject to the following conditions: 44 | 45 | The above copyright notice and this permission notice shall be included in all 46 | copies or substantial portions of the Software. 47 | 48 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 49 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 50 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 51 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 52 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 53 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 54 | SOFTWARE. 55 | 56 |
57 | 58 | --- 59 | 60 |

 

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63 | 64 | Create With Swift Logo 65 | 66 | 67 |

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84 | -------------------------------------------------------------------------------- /Camera-SwiftUI/CameraManager.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CameraManager.swift 3 | // Camera-SwiftUI 4 | // 5 | // Created by Gianluca Orpello on 27/02/24. 6 | // 7 | 8 | import AVFoundation 9 | import CoreImage 10 | 11 | 12 | class CameraManager: NSObject { 13 | 14 | private let captureSession = AVCaptureSession() 15 | private var deviceInput: AVCaptureDeviceInput? 16 | private var videoOutput: AVCaptureVideoDataOutput? 17 | private let systemPreferredCamera = AVCaptureDevice.default(for: .video) 18 | 19 | private var sessionQueue = DispatchQueue(label: "video.preview.session") 20 | 21 | private var addToPreviewStream: ((CGImage) -> Void)? 22 | 23 | lazy var previewStream: AsyncStream = { 24 | AsyncStream { continuation in 25 | addToPreviewStream = { cgImage in 26 | continuation.yield(cgImage) 27 | } 28 | } 29 | }() 30 | 31 | private var isAuthorized: Bool { 32 | get async { 33 | let status = AVCaptureDevice.authorizationStatus(for: .video) 34 | 35 | // Determine if the user previously authorized camera access. 36 | var isAuthorized = status == .authorized 37 | 38 | // If the system hasn't determined the user's authorization status, 39 | // explicitly prompt them for approval. 40 | if status == .notDetermined { 41 | isAuthorized = await AVCaptureDevice.requestAccess(for: .video) 42 | } 43 | 44 | return isAuthorized 45 | } 46 | } 47 | 48 | override init() { 49 | super.init() 50 | 51 | Task { 52 | await configureSession() 53 | await startSession() 54 | } 55 | 56 | } 57 | 58 | private func configureSession() async { 59 | guard await isAuthorized, 60 | let systemPreferredCamera, 61 | let deviceInput = try? AVCaptureDeviceInput(device: systemPreferredCamera) 62 | else { return } 63 | 64 | captureSession.beginConfiguration() 65 | 66 | defer { 67 | self.captureSession.commitConfiguration() 68 | } 69 | 70 | let videoOutput = AVCaptureVideoDataOutput() 71 | 72 | videoOutput.setSampleBufferDelegate(self, queue: sessionQueue) 73 | 74 | guard captureSession.canAddInput(deviceInput) else { 75 | return 76 | } 77 | 78 | guard captureSession.canAddOutput(videoOutput) else { 79 | return 80 | } 81 | 82 | captureSession.addInput(deviceInput) 83 | captureSession.addOutput(videoOutput) 84 | 85 | //For a vertical orientation of the camera stream 86 | videoOutput.connection(with: .video)?.videoRotationAngle = 90 87 | } 88 | 89 | 90 | private func startSession() async { 91 | guard await isAuthorized else { return } 92 | captureSession.startRunning() 93 | } 94 | 95 | private func rotate(by angle: CGFloat, from connection: AVCaptureConnection) { 96 | guard connection.isVideoRotationAngleSupported(angle) else { return } 97 | connection.videoRotationAngle = angle 98 | } 99 | 100 | } 101 | 102 | extension CameraManager: AVCaptureVideoDataOutputSampleBufferDelegate { 103 | 104 | func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) { 105 | guard let currentFrame = sampleBuffer.cgImage else { 106 | print("Can't translate to CGImage") 107 | return 108 | } 109 | addToPreviewStream?(currentFrame) 110 | } 111 | 112 | } 113 | 114 | 115 | extension CMSampleBuffer { 116 | var cgImage: CGImage? { 117 | let pixelBuffer: CVPixelBuffer? = CMSampleBufferGetImageBuffer(self) 118 | guard let imagePixelBuffer = pixelBuffer else { return nil } 119 | return CIImage(cvPixelBuffer: imagePixelBuffer).cgImage 120 | } 121 | } 122 | 123 | extension CIImage { 124 | var cgImage: CGImage? { 125 | let ciContext = CIContext() 126 | guard let cgImage = ciContext.createCGImage(self, from: self.extent) else { return nil } 127 | return cgImage 128 | } 129 | } 130 | -------------------------------------------------------------------------------- /Camera-SwiftUI.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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