zxing.MonoDroid

ZXing (pronounced "zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java. Our focus is on using the built-in camera on mobile phones to photograph and decode barcodes on the device, without communicating with a server. This project is built from the official csharp port from SVN and may be missing functionality.

Usage

A simple example of using zxing.MonoDroid might look like this:

using System;
using System.Net;
using System.Net.Sockets;
using System.Drawing;
using com.google.zxing;
using com.google.zxing.common;

using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

namespace Camera.MonoDroid
{
    [Activity(Label = "BarcodeScanner.NET", MainLauncher = true)]
    public class Activity1 : Activity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.layout.main);

            TextView text = FindViewById<TextView>(Resource.id.barcodeText);

            try
            {
                var webRequest = (HttpWebRequest)WebRequest.Create(
                    "http://www.theipadfan.com/wp-content/uploads/2010/07/barcode.png"
                );
                var response = webRequest.GetResponse();
                var stream = response.GetResponseStream();
                var _backbitmap = Android.Graphics.BitmapFactory.DecodeStream(stream);
                var image = new System.Drawing.Bitmap(_backbitmap);

                Reader barcodeReader = new MultiFormatReader();
                LuminanceSource source = new RGBLuminanceSource(image, _backbitmap.Width, _backbitmap.Height);
                BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
                var result = barcodeReader.decode(bitmap);
                text.Text = result.Text;
            }
            catch (Exception ex)
            {
                text.Text = ex.ToString();
            }
        }
    }
}

zxing

ZXing is released under the Apache 2.0 license. ZXing can be found here: http://code.google.com/p/zxing/ A copy of the Apache 2.0 license can be found here: http://www.apache.org/licenses/LICENSE-2.0

System.Drawing

The System.Drawing classes included are from the mono source code which is property of Novell. Copyright notice is intact in source code files.