.startScan(params)

Launches the camera and starts scanning for barcodes and QR codes.

Parameters:

• params Table Contains parameters for the call.

title _optional
String Title text.
Default is SCAN BARCODE

useFrontCamera _optional
Boolean Set to true to use the front camera if it’s available. If it’s not available, the rear camera will be used.
Default is false.

beepEnabled _optional
Boolean Set to true to hear a beep sound when the barcode/qrcode is scanned.
Default is false.

barcodeFormat _optional
String scan barcode format.
Default is all
    Available formats:
        "one-d": includes 'UPC_A', 'UPC_E', 'EAN_8', 'EAN_13', 'CODE_39', 'CODE_93', 'CODE_128', 'ITF', 'RSS_14', 'RSS_EXPANDED'
        "qrcode": includes 'QR_CODE'
        "product": includes 'UPC_A', 'UPC_E', 'EAN_8', 'EAN_13', 'RSS_14'
        "data-matrix": includes 'DATA_MATRIX'
        "all": includes all previous formats + 'PDF417', 'Aztec'.


onScanComplete _optional
Listener Listener which receives the scan complete event when the scanning has been completed.

Example

local qrreader = require("plugin.qrreader")
qrreader.startScan( {
    onScanComplete = function(event) 
        print(event.state) -- "completed" or "cancelled"
        print(tostring(event.isError)) -- "true" or "false"
        print(event.result) -- scanned data
    end,
    title = "SCAN QR CODE",
    useFrontCamera = false,
    barcodeFormat = "qrcode",
    beepEnabled = true,
} )