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Merge pull request #39 from carousell/feature/live-preview
Live Preview
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2 changes: 1 addition & 1 deletion
2
Pickle.xcodeproj/xcshareddata/xcschemes/Pickle-Example.xcscheme
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22 changes: 22 additions & 0 deletions
22
Pickle/Assets/Images.xcassets/camera-icon.imageset/Contents.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| { | ||
| "images" : [ | ||
| { | ||
| "idiom" : "universal", | ||
| "scale" : "1x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "[email protected]", | ||
| "scale" : "2x" | ||
| }, | ||
| { | ||
| "idiom" : "universal", | ||
| "filename" : "[email protected]", | ||
| "scale" : "3x" | ||
| } | ||
| ], | ||
| "info" : { | ||
| "version" : 1, | ||
| "author" : "xcode" | ||
| } | ||
| } |
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Pickle/Assets/Images.xcassets/camera-icon.imageset/[email protected]
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // | ||
| // This source file is part of the carousell/pickle open source project | ||
| // | ||
| // Copyright © 2019 Carousell and the project authors | ||
| // Licensed under Apache License v2.0 | ||
| // | ||
| // See https://github.com/carousell/pickle/blob/master/LICENSE for license information | ||
| // See https://github.com/carousell/pickle/graphs/contributors for the list of project authors | ||
| // | ||
|
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||
|
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| import Foundation | ||
| import AVFoundation | ||
|
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| final class CameraSessionHandler { | ||
|
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| enum CameraSessionError: Error { | ||
| case noDeviceInput, noPermission | ||
| } | ||
|
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| private let session = AVCaptureSession() | ||
|
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| weak var previewView: LiveView? { | ||
| didSet { | ||
| previewView?.session = session | ||
| } | ||
| } | ||
|
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| var isRunning: Bool { | ||
| return session.isRunning | ||
| } | ||
|
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| var hasPermssion: Bool { | ||
| return AVCaptureDevice.authorizationStatus(for: .video) == .authorized | ||
| } | ||
|
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| private let sessionQueue = DispatchQueue(label: "pickle.liveView.sessionQueue") | ||
|
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| init() throws { | ||
| guard hasPermssion else { throw CameraSessionError.noPermission } | ||
| } | ||
|
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| func startSession() throws { | ||
| guard | ||
| let input = AVCaptureDevice.default(for: .video), | ||
| let deviceInput = try? AVCaptureDeviceInput(device: input) else { | ||
| throw CameraSessionError.noDeviceInput | ||
| } | ||
| if session.inputs.count == 0 { | ||
| session.addInput(deviceInput) | ||
| } | ||
| sessionQueue.async { [weak self] in | ||
| guard self?.session.isRunning == .some(false) else { return } | ||
| self?.session.startRunning() | ||
| } | ||
| } | ||
|
|
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| func stopSession() { | ||
| sessionQueue.async { [weak self] in | ||
| self?.session.stopRunning() | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| // | ||
| // This source file is part of the carousell/pickle open source project | ||
| // | ||
| // Copyright © 2019 Carousell and the project authors | ||
| // Licensed under Apache License v2.0 | ||
| // | ||
| // See https://github.com/carousell/pickle/blob/master/LICENSE for license information | ||
| // See https://github.com/carousell/pickle/graphs/contributors for the list of project authors | ||
| // | ||
|
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| import AVFoundation | ||
| import UIKit | ||
|
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| final class LiveView: UIView { | ||
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| override class var layerClass: AnyClass { | ||
| return AVCaptureVideoPreviewLayer.self | ||
| } | ||
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| private var videoPreviewLayer: AVCaptureVideoPreviewLayer { | ||
| guard let layer = self.layer as? AVCaptureVideoPreviewLayer else { | ||
| fatalError("Expected `AVCaptureVideoPreviewLayer` type for layer. Check LiveView.layerClass implementation.") | ||
| } | ||
| layer.videoGravity = .resizeAspectFill | ||
| return layer | ||
| } | ||
|
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| var session: AVCaptureSession? { | ||
| get { | ||
| return videoPreviewLayer.session | ||
| } | ||
| set { | ||
| videoPreviewLayer.session = newValue | ||
| } | ||
| } | ||
| } |
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