Android App Development with

C#.Net(using Xamarin Studio)

Vasistan Shakkaravarthi

2

In this module

• About Xamarin Studio. • Xamarin.Android architecture• Xamarin Studio IDE• Nice to know• Sample app: Layout design• Sample app: Activity code• Sample app creation demo.

Android App Development using Xamarin Studio

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Xamarin Studio

Build better apps for iOS, Android and Mac with Xamarin Studio.

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Xamarin.Android Architecture

Xamarin.Android applications run within the Mono execution environment. This execution environment runs side-by-side with the Dalvik Virtual Machine. Both runtime environments run on top of the Linux kernel and expose various APIs to the user code that allows developers to access the underlying system. Both Mono and Dalvik are runtimes written in the C language.

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Xamarin Studio IDE

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Xamarin Studio IDE

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Nice to know

• Layouts• Activity• Resources• C# features (generic class, delegate etc.)

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Layout Design

TextView control

EditText control

Button control

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Activity Codeusing System;using System.Collections.Generic;using System.Linq;using System.Text;

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

namespace SampleApp{    [Activity (Label = "Sample", MainLauncher=true)]                public class CalcActivity : Activity    {        protected override void OnCreate (Bundle bundle)        {            base.OnCreate (bundle);

            SetContentView (Resource.Layout.CalcForm);

            Button button = FindViewById<Button> (Resource.Id.button1);            button.Click += delegate {                EditText txt1 = FindViewById<EditText> (Resource.Id.editText1);                EditText txt2 = FindViewById<EditText> (Resource.Id.editText2);                TextView tvResult = FindViewById<TextView> (Resource.Id.textView4);                tvResult.Text=  (int.Parse( txt1.Text.Trim()) + int.Parse( txt2.Text.Trim())).ToString();            };

        }    }}

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Demo

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Reference

• http://developer.xamarin.com/guides/android/under_the_hood/architecture/• https://xamarin.com/studio• http://developer.xamarin.com/

Thank youCheck the other resources

Bloghttp://vasistan.blogspot.in

YouTube http://www.youtube.com/playlist?list=PL-CcORxeaUcgXHO7UW9sGNbue9wH-4No3