[TIMOB-28267] Ti.Barcode event handlers not working properly on iOS

const Barcode = require('ti.barcode');
const overlay = Ti.UI.createView({
	backgroundColor: 'transparent',
	top: 0,
	right: 0,
	bottom: 0,
	left: 0
});

var switchButton = Ti.UI.createButton({
	title: Barcode.useFrontCamera ? 'Back Camera' : 'Front Camera',
	textAlign: 'center',
	color: '#000',
	backgroundColor: '#fff',
	style: 0,
	font: {
		fontWeight: 'bold',
		fontSize: 16
	},
	borderColor: '#000',
	borderRadius: 10,
	borderWidth: 1,
	opacity: 0.5,
	width: 220,
	height: 30,
	bottom: 10
});

switchButton.addEventListener('click', function () {
	Barcode.useFrontCamera = !Barcode.useFrontCamera;
	switchButton.title = Barcode.useFrontCamera ? 'Back Camera' : 'Front Camera';
});

overlay.add(switchButton);

var cancelButton = Ti.UI.createButton({
	title: 'Cancel',
	textAlign: 'center',
	color: '#000',
	backgroundColor: '#fff',
	style: 0,
	font: {
		fontWeight: 'bold',
		fontSize: 16
	},
	borderColor: '#000',
	borderRadius: 10,
	borderWidth: 1,
	opacity: 0.5,
	width: 220,
	height: 30,
	top: 20
});
cancelButton.addEventListener('click', function () {
	Barcode.cancel();
});
overlay.add(cancelButton);


function barcodeAddEventListeners() {
    console.log('barcodeAddEventListeners');
    Barcode.addEventListener('success', barcodeSuccess);
    Barcode.addEventListener('cancelled', barcodeCancelled);
    Barcode.addEventListener('error', barcodeError);
}

function barcodeRemoveEventListeners() {
    console.log('barcodeRemoveEventListeners');
    Barcode.removeEventListener('success', barcodeSuccess);
    Barcode.removeEventListener('cancelled', barcodeCancelled);
    Barcode.removeEventListener('error', barcodeError);
}

function resetCapture() {
    barcodeRemoveEventListeners();
    barcodeAddEventListeners();
    barcodeCapture();
}

function barcodeSuccess() {
    console.log('barcodeSuccess');
}

function barcodeCancelled() {
    console.log('barcodeCancelled');
}

function barcodeError() {
    console.log('barcodeError');
}


var cameraPermission = (callback) => {
	if (OS_ANDROID) {
		if (Ti.Media.hasCameraPermissions()) {
			if (callback) {
				callback(true);
			}
		} else {
			Ti.Media.requestCameraPermissions(function (e) {
				if (e.success) {
					if (callback) {
						callback(true);
					}
				} else {
					if (callback) {
						callback(false);
					}
					console.log('No camera permission'); // eslint-disable-line no-alert
				}
			});
		}
	}

	if (OS_IOS) {
		if (callback) {
			callback(true);
		}
	}
};

function barcodeCapture() {
    cameraPermission(success => {
        console.log('gotPermission', {success: success});
        if(success) {
            Barcode.capture({
                animate: true,
                showCancel: false,
                showRectangle: false,
                keepOpen: false,
                allowInstructions: false,
                allowMenu: true,
                overlay: overlay,
                acceptedFormats: [
                    Barcode.FORMAT_QR_CODE
                ]
            });
        }
    })
    
}


$.index.open();

<Alloy>
	<Window id="index" layout="vertical">		
		<Button left="0" right="0" top="50" onClick="barcodeAddEventListeners">Add Event Listeners</Button>
		<Button left="0" right="0" top="10" onClick="barcodeRemoveEventListeners">Remove Event Listeners</Button>
		<Button left="0" right="0" top="10" onClick="barcodeCapture">barcodeCapture</Button>
		<Button left="0" right="0" top="10" onClick="resetCapture">resetCapture</Button>
	</Window>
</Alloy>