QR / Barcode Scanner
QR / Barcode Scanner recognizes QR / Barcode.
Create Instants
Starting / Stopping the Scanner
Using the Scanning Information
Create Instants
>QR_BarcodeViewController.swift
var cameraDevice:MasCameraDevice = MasCameraDevice() var backgroundRenderer:MasBackgroundRenderer = MasBackgroundRenderer() var trackingManager:MasTrackerManager = MasTrackerManager()
Starting / Stopping the Scanner
To start / stop Scanner, refer to the following code.
>QR_BarcodeViewController.swift
@objc func resumeAR() { ... trackingManager.start(.TRACKER_TYPE_CODE_SCANNER) } @objc func pauseAR() { trackingManager.stopTracker() ... }
Using the Scanning Information
When you illuminate QR / Barcode, the code name is displayed on the screen. Refer to the following code to use the scanning information.
>QR_BarcodeViewController.swift
override func glkView(_ view: GLKView, drawIn rect: CGRect) { ... let trackingState:MasTrackingState = trackingManager.updateTrackingState() guard let backgroundTexture = backgroundRenderer.getBackgroundTexture() else { return } backgroundRenderer.begin(backgroundTexture) backgroundRenderer.renderBackgroundToTexture() backgroundRenderer.end() backgroundQuad.draw(texture: backgroundTexture, projectionMatrix: cameraDevice.getBackgroundPlaneProjectionMatrix()) glEnable(GLenum(GL_DEPTH_TEST)) let codeScanResult:String = trackingState.getCodeScanResult() if codeScanResult != "" { let objectData:Data = codeScanResult.data(using: String.Encoding.utf8)! let json = try! JSONSerialization.jsonObject(with: objectData, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String: String] self.formatLabel.text = json["Format"] self.codeLabel.text = json["Value"] trackingManager.stopTracker() self.scanButton.alpha = 1.0 self.scanButton.isEnabled = true self.scanButton.setTitle("Start Scan", for: .normal) } glDisable(GLenum(GL_DEPTH_TEST)) }