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Developer
Bluenoser
Posts: 257
Registered: ‎04-04-2012
My Device: BlackBerry Z10/Z10LE/Q10/PlayBook

Re: Problems with the barcode reader sample

[ Edited ]
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Developer
Bluenoser
Posts: 257
Registered: ‎04-04-2012
My Device: BlackBerry Z10/Z10LE/Q10/PlayBook

Re: Problems with the barcode reader sample

Here is my source example.

 

import bb.cascades 1.0
import bb.cascades.multimedia 1.0
import bb.multimedia 1.0

Page {
    Container {
        Camera {
            id: camera
            preferredWidth: 768.0
            preferredHeight: 768.0
            onCameraOpened: {
                // Apply some settings after the camera was opened successfully
                getSettings(cameraSettings)
                cameraSettings.focusMode = CameraFocusMode.ContinuousAuto
                cameraSettings.shootingMode = CameraShootingMode.Stabilization
                applySettings(cameraSettings)

                // Start the view finder as it is needed by the barcode detector
                camera.startViewfinder()
            }
            onViewfinderStarted: {
                // Setup the barcode detector with the camera object now
                barcodeDetector.camera = camera
            }
            onViewfinderStartFailed: {
                resultLabel.text = error;
            }
            attachedObjects: [
                CameraSettings {
                    id: cameraSettings
                }
            ]
        }
        Container {
            id: resultArea
            horizontalAlignment: HorizontalAlignment.Fill
            Label {
                text: "QRCode Results"
            }
            Label {
                id: resultLabel
                multiline: true
            }
            Button {
                onClicked: {
                    camera.open();
                }
                text: "second camera.open()"
            }
        }
    }
    onCreationCompleted: {
        // Check to see if any cameras are currently accessible.
        if (camera.allCamerasAccessible) {
            // Open the rear camera.
            camera.open();
        }
    }
    attachedObjects: [
        BarcodeDetector {
            id: barcodeDetector
            formats: BarcodeFormat.Any
            onBarcodeDetected: {
                if (resultLabel.text != data) {
                    resultLabel.text = data;
                    resultArea.visible = true;
                    scannedSound.play()
                }
            }
        },
        SystemSound {
            id: scannedSound
            sound: SystemSound.GeneralNotification
        }
    ]
}

 

Only when the button is pressed will it scan the QRCode.

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BlackBerry Development Advisor
PBernhardt
Posts: 749
Registered: ‎12-16-2008
My Device: BlackBerry Z30
My Carrier: Bell

Re: Problems with the barcode reader sample

Thanks Bluenoser. I'm tracking down the bug internally, and I'll update the DIT issue when I've found it.

Paul Bernhardt
Application Development Consultant
BlackBerry
@PBernhardt

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Developer
Bluenoser
Posts: 257
Registered: ‎04-04-2012
My Device: BlackBerry Z10/Z10LE/Q10/PlayBook

Re: Problems with the barcode reader sample

Paul,

 

  Is there any progress? Being able to scan barcodes/QR codes is more or less a necessity for any mobile app. I have a cascades apps that I am working on an QR Codes are required and the example app is cludgy and testers don't like it.

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BlackBerry Development Advisor
tolang
Posts: 47
Registered: ‎04-19-2013
My Device: I love them all!
My Carrier: Carriers rock!

Re: Problems with the barcode reader sample

Camera {
    attachedObjects: BarcodeDetector {
        camera: camera
        formats: BarcodeFormat.Any
        onDetected: {
           // Content of the barcode is delivered as 'data'
        }
    }
                   
    id: camera

    onCameraOpened: {
        camera.startViewfinder();
    }
}

Button {
    id: buttonCamera
    text: "Start Detector"

    onClicked: {
        camera.open();
    }
}

 That is the simplest barcode scanner I could come up with.  It would be left to the developer to do something with the data, like calling camera.close() after you have received the data from a scanned barcode.

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Developer
Bluenoser
Posts: 257
Registered: ‎04-04-2012
My Device: BlackBerry Z10/Z10LE/Q10/PlayBook

Re: Problems with the barcode reader sample

Hi,

 

  Did you try your app and was it able to scan QR Codes without any issues?

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BlackBerry Development Advisor
tolang
Posts: 47
Registered: ‎04-19-2013
My Device: I love them all!
My Carrier: Carriers rock!

Re: Problems with the barcode reader sample

I didn't experience any issues scanning barcodes, but perhaps I'm not looking for your specific issue?  Can you describe exactly what problems you're having?

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New Contributor
abbyyy
Posts: 4
Registered: ‎04-12-2013
My Device: none
My Carrier: ZTE

Re: Problems with the barcode reader sample

It is very simply to integrate barcode scanning component in your application with this free user-defined barcode reader implementation tutorial.

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Developer
simon_hain
Posts: 15,908
Registered: ‎07-29-2008
My Device: Z10 LE
My Carrier: O2 Germany

Re: Problems with the barcode reader sample


abbyyy wrote:

It is very simply to integrate barcode scanning component in your application with this free user-defined barcode reader implementation tutorial.


dotNet will not be very helpful on BB10

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Developer
Bluenoser
Posts: 257
Registered: ‎04-04-2012
My Device: BlackBerry Z10/Z10LE/Q10/PlayBook

Re: Problems with the barcode reader sample

For me, this problem has been fixed by the updates to the SDK.

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