flutter_package / mobile_scanner

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Julian Steenbakker
c1abba22 1 parent 78cc11d6

feat: add macos support

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Showing 12 changed files with 385 additions and 23 deletions
## 0.1.0
We now have MacOS support using Apple's Vision framework!
Keep in mind that for now, only the raw value is supported.
## 0.0.3
* Added some API docs and README
* Updated the example app
... ...
... ... @@ -26,6 +26,7 @@
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33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
5225F51353DA345E2811B6A4 /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 65E614A1DF8B88C7B0CE1B97 /* Pods_Runner.framework */; };
/* End PBXBuildFile section */
/* Begin PBXContainerItemProxy section */
... ... @@ -54,7 +55,7 @@
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335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
33CC10ED2044A3C60003C045 /* mobile_scanner_example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "mobile_scanner_example.app"; sourceTree = BUILT_PRODUCTS_DIR; };
33CC10ED2044A3C60003C045 /* mobile_scanner_example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = mobile_scanner_example.app; sourceTree = BUILT_PRODUCTS_DIR; };
33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
... ... @@ -66,8 +67,12 @@
33E51913231747F40026EE4D /* DebugProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = DebugProfile.entitlements; sourceTree = "<group>"; };
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... ... @@ -75,12 +80,23 @@
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runOnlyForDeploymentPostprocessing = 0;
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/* End PBXFrameworksBuildPhase section */
/* Begin PBXGroup section */
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isa = PBXGroup;
children = (
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D522F9F6F348C5944077606B /* Pods-Runner.release.xcconfig */,
F63009B5E287A1C82F9D7D2F /* Pods-Runner.profile.xcconfig */,
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path = Pods;
sourceTree = "<group>";
};
33BA886A226E78AF003329D5 /* Configs */ = {
isa = PBXGroup;
children = (
... ... @@ -98,7 +114,8 @@
33FAB671232836740065AC1E /* Runner */,
33CEB47122A05771004F2AC0 /* Flutter */,
33CC10EE2044A3C60003C045 /* Products */,
D73912EC22F37F3D000D13A0 /* Frameworks */,
20F8C9AA20C2A495C125E194 /* Pods */,
3539353E79638640B4999C09 /* Frameworks */,
);
sourceTree = "<group>";
};
... ... @@ -145,9 +162,10 @@
path = Runner;
sourceTree = "<group>";
};
D73912EC22F37F3D000D13A0 /* Frameworks */ = {
3539353E79638640B4999C09 /* Frameworks */ = {
isa = PBXGroup;
children = (
65E614A1DF8B88C7B0CE1B97 /* Pods_Runner.framework */,
);
name = Frameworks;
sourceTree = "<group>";
... ... @@ -159,11 +177,13 @@
isa = PBXNativeTarget;
buildConfigurationList = 33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */;
buildPhases = (
696298230BDAD783AEC51C81 /* [CP] Check Pods Manifest.lock */,
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33CC10EA2044A3C60003C045 /* Frameworks */,
33CC10EB2044A3C60003C045 /* Resources */,
33CC110E2044A8840003C045 /* Bundle Framework */,
3399D490228B24CF009A79C7 /* ShellScript */,
8A90D2BC4083C5ACCEEBF32B /* [CP] Embed Pods Frameworks */,
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buildRules = (
);
... ... @@ -270,6 +290,45 @@
shellPath = /bin/sh;
shellScript = "\"$FLUTTER_ROOT\"/packages/flutter_tools/bin/macos_assemble.sh && touch Flutter/ephemeral/tripwire";
};
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isa = PBXShellScriptBuildPhase;
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files = (
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inputFileListPaths = (
);
inputPaths = (
"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
"${PODS_ROOT}/Manifest.lock",
);
name = "[CP] Check Pods Manifest.lock";
outputFileListPaths = (
);
outputPaths = (
"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
);
runOnlyForDeploymentPostprocessing = 0;
shellPath = /bin/sh;
shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n # print error to STDERR\n echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
showEnvVarsInLog = 0;
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outputFileListPaths = (
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showEnvVarsInLog = 0;
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... ... @@ -344,7 +403,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
MACOSX_DEPLOYMENT_TARGET = 10.11;
MACOSX_DEPLOYMENT_TARGET = 10.13;
MTL_ENABLE_DEBUG_INFO = NO;
SDKROOT = macosx;
SWIFT_COMPILATION_MODE = wholemodule;
... ... @@ -366,6 +425,7 @@
"$(inherited)",
"@executable_path/../Frameworks",
);
MACOSX_DEPLOYMENT_TARGET = 10.13;
PROVISIONING_PROFILE_SPECIFIER = "";
SWIFT_VERSION = 5.0;
};
... ... @@ -423,7 +483,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
MACOSX_DEPLOYMENT_TARGET = 10.11;
MACOSX_DEPLOYMENT_TARGET = 10.13;
MTL_ENABLE_DEBUG_INFO = YES;
ONLY_ACTIVE_ARCH = YES;
SDKROOT = macosx;
... ... @@ -470,7 +530,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
MACOSX_DEPLOYMENT_TARGET = 10.11;
MACOSX_DEPLOYMENT_TARGET = 10.13;
MTL_ENABLE_DEBUG_INFO = NO;
SDKROOT = macosx;
SWIFT_COMPILATION_MODE = wholemodule;
... ... @@ -492,6 +552,7 @@
"$(inherited)",
"@executable_path/../Frameworks",
);
MACOSX_DEPLOYMENT_TARGET = 10.13;
PROVISIONING_PROFILE_SPECIFIER = "";
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_VERSION = 5.0;
... ... @@ -512,6 +573,7 @@
"$(inherited)",
"@executable_path/../Frameworks",
);
MACOSX_DEPLOYMENT_TARGET = 10.13;
PROVISIONING_PROFILE_SPECIFIER = "";
SWIFT_VERSION = 5.0;
};
... ...
... ... @@ -4,4 +4,7 @@
<FileRef
location = "group:Runner.xcodeproj">
</FileRef>
<FileRef
location = "group:Pods/Pods.xcodeproj">
</FileRef>
</Workspace>
... ...
... ... @@ -6,6 +6,8 @@
<true/>
<key>com.apple.security.cs.allow-jit</key>
<true/>
<key>com.apple.security.device.camera</key>
<true/>
<key>com.apple.security.network.server</key>
<true/>
</dict>
... ...
... ... @@ -2,6 +2,8 @@
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>NSCameraUsageDescription</key>
<string>The camera is required to scan barcodes or QR codes</string>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
... ...
... ... @@ -4,5 +4,7 @@
<dict>
<key>com.apple.security.app-sandbox</key>
<true/>
<key>com.apple.security.device.camera</key>
<true/>
</dict>
</plist>
... ...
... ... @@ -86,6 +86,9 @@ class MobileScannerController {
final barcode = Barcode.fromNative(data);
barcodesController.add(barcode);
break;
case 'barcodeMac':
barcodesController.add(Barcode(rawValue: data['payload']));
break;
default:
throw UnimplementedError();
}
... ...
... ... @@ -18,7 +18,7 @@ class Barcode {
/// Returns raw bytes as it was encoded in the barcode.
///
/// Returns null if the raw bytes can not be determined.
final Uint8List rawBytes;
final Uint8List? rawBytes;
/// Returns barcode value as it was encoded in the barcode. Structured values are not parsed, for example: 'MEBKM:TITLE:Google;URL://www.google.com;;'.
///
... ... @@ -63,6 +63,8 @@ class Barcode {
/// Gets parsed WiFi AP details.
final WiFi? wifi;
Barcode({this.corners, this.format = BarcodeFormat.ean13, this.rawBytes, this.type = BarcodeType.text, this.calendarEvent, this.contactInfo, this.driverLicense, this.email, this.geoPoint, this.phone, this.sms, this.url, this.wifi, required this.rawValue});
/// Create a [Barcode] from native data.
Barcode.fromNative(Map<dynamic, dynamic> data)
: corners = toCorners(data['corners']),
... ...
import Cocoa
import AVFoundation
import FlutterMacOS
import Vision
public class MobileScannerPlugin: NSObject, FlutterPlugin {
public static func register(with registrar: FlutterPluginRegistrar) {
let channel = FlutterMethodChannel(name: "mobile_scanner", binaryMessenger: registrar.messenger)
let instance = MobileScannerPlugin()
registrar.addMethodCallDelegate(instance, channel: channel)
}
public class MobileScannerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler, FlutterTexture, AVCaptureVideoDataOutputSampleBufferDelegate {
let registry: FlutterTextureRegistry
// Sink for publishing event changes
var sink: FlutterEventSink!
// Texture id of the camera preview
var textureId: Int64!
// Capture session of the camera
var captureSession: AVCaptureSession!
// The selected camera
var device: AVCaptureDevice!
// Image to be sent to the texture
var latestBuffer: CVImageBuffer!
var analyzeMode: Int = 0
var analyzing: Bool = false
var position = AVCaptureDevice.Position.back
public static func register(with registrar: FlutterPluginRegistrar) {
let instance = MobileScannerPlugin(registrar.textures)
let method = FlutterMethodChannel(name:
"dev.steenbakker.mobile_scanner/scanner/method", binaryMessenger: registrar.messenger)
let event = FlutterEventChannel(name:
"dev.steenbakker.mobile_scanner/scanner/event", binaryMessenger: registrar.messenger)
registrar.addMethodCallDelegate(instance, channel: method)
event.setStreamHandler(instance)
}
init(_ registry: FlutterTextureRegistry) {
self.registry = registry
super.init()
}
public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
switch call.method {
case "state":
checkPermission(call, result)
case "request":
requestPermission(call, result)
case "start":
start(call, result)
case "torch":
switchTorch(call, result)
case "analyze":
switchAnalyzeMode(call, result)
case "stop":
stop(result)
default:
result(FlutterMethodNotImplemented)
}
}
// FlutterStreamHandler
public func onListen(withArguments arguments: Any?, eventSink events: @escaping FlutterEventSink) -> FlutterError? {
sink = events
return nil
}
// FlutterStreamHandler
public func onCancel(withArguments arguments: Any?) -> FlutterError? {
sink = nil
return nil
}
// FlutterTexture
public func copyPixelBuffer() -> Unmanaged<CVPixelBuffer>? {
if latestBuffer == nil {
return nil
}
return Unmanaged<CVPixelBuffer>.passRetained(latestBuffer)
}
var i = 0
// Gets called when a new image is added to the buffer
public func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
i = i + 1;
latestBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)
registry.textureFrameAvailable(textureId)
switch analyzeMode {
case 1: // barcode
// Limit the analyzer because the texture output will freeze otherwise
if i / 10 == 1 {
i = 0
} else {
break
}
let imageRequestHandler = VNImageRequestHandler(
cvPixelBuffer: latestBuffer,
orientation: .right)
do {
try imageRequestHandler.perform([VNDetectBarcodesRequest { (request, error) in
if error == nil {
if let results = request.results as? [VNBarcodeObservation] {
for barcode in results {
let barcodeType = String(barcode.symbology.rawValue).replacingOccurrences(of: "VNBarcodeSymbology", with: "")
let event: [String: Any?] = ["name": "barcodeMac", "data" : ["payload": barcode.payloadStringValue, "symbology": barcodeType]]
self.sink?(event)
// if barcodeType == "QR" {
// let image = CIImage(image: source)
// image?.cropping(to: barcode.boundingBox)
// self.qrCodeDescriptor(qrCode: barcode, qrCodeImage: image!)
// }
}
}
} else {
print(error!.localizedDescription)
}
}])
} catch {
print(error)
}
default: // none
break
}
}
func checkPermission(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
if #available(macOS 10.14, *) {
let status = AVCaptureDevice.authorizationStatus(for: .video)
switch status {
case .notDetermined:
result(0)
case .authorized:
result(1)
default:
result(2)
}
} else {
result(1)
}
}
func requestPermission(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
if #available(macOS 10.14, *) {
AVCaptureDevice.requestAccess(for: .video, completionHandler: { result($0) })
} else {
result(0)
}
}
func start(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
textureId = registry.register(self)
captureSession = AVCaptureSession()
let argReader = MapArgumentReader(call.arguments as? [String: Any])
// let ratio: Int = argReader.int(key: "ratio")
let torch: Bool = argReader.bool(key: "torch") ?? false
let facing: Int = argReader.int(key: "facing") ?? 1
public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
switch call.method {
case "getPlatformVersion":
result("macOS " + ProcessInfo.processInfo.operatingSystemVersionString)
default:
result(FlutterMethodNotImplemented)
// Set the camera to use
position = facing == 0 ? AVCaptureDevice.Position.front : .back
// Open the camera device
if #available(macOS 10.15, *) {
device = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: .video, position: position).devices.first
} else {
device = AVCaptureDevice.devices(for: .video).filter({$0.position == position}).first
}
// Enable the torch if parameter is set and torch is available
if (device.hasTorch) {
do {
try device.lockForConfiguration()
device.torchMode = torch ? .on : .off
device.unlockForConfiguration()
} catch {
result(FlutterError(code: error.localizedDescription, message: nil, details: nil))
}
}
device.addObserver(self, forKeyPath: #keyPath(AVCaptureDevice.torchMode), options: .new, context: nil)
captureSession.beginConfiguration()
// Add device input
do {
let input = try AVCaptureDeviceInput(device: device)
captureSession.addInput(input)
} catch {
result(FlutterError(code: error.localizedDescription, message: nil, details: nil))
}
captureSession.sessionPreset = AVCaptureSession.Preset.photo;
// Add video output.
let videoOutput = AVCaptureVideoDataOutput()
videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32BGRA]
videoOutput.alwaysDiscardsLateVideoFrames = true
videoOutput.setSampleBufferDelegate(self, queue: DispatchQueue.main)
captureSession.addOutput(videoOutput)
for connection in videoOutput.connections {
// connection.videoOrientation = .portrait
if position == .front && connection.isVideoMirroringSupported {
connection.isVideoMirrored = true
}
}
captureSession.commitConfiguration()
captureSession.startRunning()
let dimensions = CMVideoFormatDescriptionGetDimensions(device.activeFormat.formatDescription)
let size = ["width": Double(dimensions.width), "height": Double(dimensions.height)]
let answer: [String : Any?] = ["textureId": textureId, "size": size, "torchable": device.hasTorch]
result(answer)
}
func switchTorch(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
do {
try device.lockForConfiguration()
device.torchMode = call.arguments as! Int == 1 ? .on : .off
device.unlockForConfiguration()
result(nil)
} catch {
result(FlutterError(code: error.localizedDescription, message: nil, details: nil))
}
}
func switchAnalyzeMode(_ call: FlutterMethodCall, _ result: @escaping FlutterResult) {
analyzeMode = call.arguments as! Int
result(nil)
}
func stop(_ result: FlutterResult) {
captureSession.stopRunning()
for input in captureSession.inputs {
captureSession.removeInput(input)
}
for output in captureSession.outputs {
captureSession.removeOutput(output)
}
device.removeObserver(self, forKeyPath: #keyPath(AVCaptureDevice.torchMode))
registry.unregisterTexture(textureId)
analyzeMode = 0
latestBuffer = nil
captureSession = nil
device = nil
textureId = nil
result(nil)
}
// Observer for torch state
public override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
switch keyPath {
case "torchMode":
// off = 0; on = 1; auto = 2;
let state = change?[.newKey] as? Int
let event: [String: Any?] = ["name": "torchState", "data": state]
sink?(event)
default:
break
}
}
}
class MapArgumentReader {
let args: [String: Any]?
init(_ args: [String: Any]?) {
self.args = args
}
func string(key: String) -> String? {
return args?[key] as? String
}
func int(key: String) -> Int? {
return (args?[key] as? NSNumber)?.intValue
}
func bool(key: String) -> Bool? {
return (args?[key] as? NSNumber)?.boolValue
}
func stringArray(key: String) -> [String]? {
return args?[key] as? [String]
}
}
... ...
... ... @@ -15,8 +15,7 @@ An universal scanner for Flutter based on MLKit.
s.source = { :path => '.' }
s.source_files = 'Classes/**/*'
s.dependency 'FlutterMacOS'
s.platform = :osx, '10.11'
s.platform = :osx, '10.13'
s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
s.swift_version = '5.0'
end
... ...
name: mobile_scanner
description: A universal scanner for Flutter based on MLKit. Uses CameraX on Android and AVFoundation on iOS.
version: 0.0.3
version: 0.1.0
repository: https://github.com/juliansteenbakker/mobile_scanner
environment:
... ... @@ -24,3 +24,5 @@ flutter:
pluginClass: MobileScannerPlugin
ios:
pluginClass: MobileScannerPlugin
macos:
pluginClass: MobileScannerPlugin
\ No newline at end of file
... ...