Building A Simple Android App For Beginners : Hello World Source Code Debuging

5. Next go to MainActivity.cs and add the code to read the text entered by the user and displaying it in dialog box.

using System;

using Android.App;

using Android.Content;

using Android.Runtime;

using Android.Views;

using Android.Widget;

using Android.OS;

namespace HelloWorld{

[Activity(Label = "HelloWorld", MainLauncher = true, Icon = "@drawable/icon")]

public class MainActivity : Activity

{ protected override void OnCreate(Bundle bundle)

{ base.OnCreate(bundle);

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

SetContentView(Resource.Layout.Main);

Button btn = FindViewById<Button>(Resource.Id.btnHello);

EditText et = FindViewById<EditText>(Resource.Id.textName);

btn.Click += delegate

{ String str = et.Text;

var bulider = new AlertDialog.Builder(this);

bulider.SetMessage("Welcome to My Application " + str);

bulider.SetCancelable(false);

bulider.SetPositiveButton("OK", delegate { });

var dialog1 = bulider.Create();

dialog1.Show(); };
}

}

6. Then debug the application. Emulator will take some time to start progress can be seen in output window: