Hyperloop.barcode

A barcode scanner example for Android using Hyperloop

Used library:

• https://github.com/dm77/barcodescanner
• https://github.com/zxing/zxing (zxing core)

Features:

• setFlash(true/false);
• getFlash();
• startCamera(id);
• getCamera();
• resume();
• stopCamera();
• getView();
• hasCameraPermissions();
• requestCameraPermissions(callback(true/false));

Example:

var scanner = require("scanner");
var whichCam = 0;

scanner.result(function(result) {
	$.lbl.text = result.getText() + "\n" + result.getBarcodeFormat();

	// just wait a bit to resume
	_.delay(function() {
		scanner.resume();
	}, 1000);
})

$.btn_start.addEventListener("click", function(e) {
	if (scanner.hasCameraPermissions()) {
		scanner.startCamera(whichCam);
	} else {
		scanner.requestCameraPermissions(function(val){
			if (val){
				scanner.startCamera(whichCam);
			} else {
				alert("Permissions needed");
			}
		});
	}
});

$.btn_stop.addEventListener("click", function(e) {
	scanner.stopCamera();

	whichCam = scanner.getCamera() + 1;
	if (whichCam > 1) {
		whichCam = 0;
	}
});

$.btn_flash.addEventListener("click", function(e) {
	scanner.setFlash(!scanner.getFlash());
});

$.index.addEventListener("open", function(e) {

});
$.view_cam.add(scanner.getView());
$.index.open();