Consume a Web Service in an Android application with C# MonoAnDroid application

Description:

In this application I will describe how to consume a web service in your MonoDroid application using VS 2010. (MonoDroid will not work in VS 2010 Express edition). To install MonoDroid navigate to http://mono-android.net/Installation. Follow the instructions and download all the necessary files.

In the Figure 1. I have created a new MonoDroid application named monoAndroidapplication.

Now Like Figure 2 go to Project -> Add Web Reference. Enter in the URL of your web service and click Add Reference I will consume a webservice (http://soatest.parasoft.com/calculator.wsdl) which will add 2 values and will display. In this webservice you can also perform division and multiplication.

Now In the Activity.cs file you have to write the code below.

using System;

using Android.App;

using Android.Content;

using Android.Runtime;

using Android.Views;

using Android.Widget;

using Android.OS;

namespace MonoAndroidApplicationListView

{

    [Activity(Label = "MonoAndroidApplicationListView", MainLauncher = true)]

    public class Activity1 : Activity

    {

        int count = 1;

        protected override void OnCreate(Bundle bundle)

        {

            base.OnCreate(bundle);

            // Set our view from the "main" layout resource

            SetContentView(Resource.Layout.Main);

            // Get our button from the layout resource,

            // and attach an event to it

            // Create a new Button and set it as our view  

            //Button button = FindViewById<Button>(Resource.Id.MyButton);

            Button button = new Button(this);   

            button.Text = "Consume!";

            button.Click += button_Click;

            SetContentView(button);  

            //button.Click += delegate { button.Text = string.Format("{0} clicks!", count++); };

        }

        private void button_Click(object sender, System.EventArgs e)

        {

            // Create our web service and use it to add 2 numbers   

            var ws = new Calculator();

            var result = ws.add(25, 10);

            // Show the result in a toast   

            Toast.MakeText(this, result.ToString(), ToastLength.Long).Show();

        }  

    }

}

Now in the figure below you will see the web service marked in red.

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