In this tutorial I will show you how to bind array to a string using an ArrayAdapter to listview in android apps using c sharp with Xamarin.
Follow these steps to display an array of string in a listivew.
v Create new Project
v Expand resource folder
v Click on layout folder as shown below image
v Open layout Main.axml and paste below code
<?xml version=“1.0“ encoding=“utf-8“?>
<LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android“
android:orientation=“vertical“
android:layout_width=“match_parent“
android:layout_height=“match_parent“>
<Button
android:text=“Load Data“
android:layout_width=“match_parent“
android:layout_height=“wrap_content“
android:id=“@+id/button1“ />
<ListView
android:minWidth=“25px“
android:minHeight=“25px“
android:layout_width=“match_parent“
android:layout_height=“match_parent“
android:id=“@+id/listView1“ />
</LinearLayout>
v Open MainActivity.cs
In MainActivity create two event one button click event and another Listview item click.overriding ItemClick allows us to handle item selection.
public class MainActivity : Activity
{
Button btnclick;
private List<string> mitem;
private ListView mlistview;
protected override voidOnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the “main” layout resource
SetContentView (Resource.Layout.Main);
btnclick = FindViewById<Button>(Resource.Id.button1);
mlistview = FindViewById<ListView>(Resource.Id.listView1);
btnclick.Click += btn_Click;
mlistview.ItemClick += List_Click;
}
private voidList_Click(object sender, AdapterView.ItemClickEventArgs e)
{
Toast.MakeText(this,mitem[e.Position].ToString(),ToastLength.Short).Show();
}
private voidbtn_Click(object sender, EventArgs e)
{
mitem = new List<string>();
mitem.Add(“Computer”);
mitem.Add(“Keyboard”);
mitem.Add(“Mouse”);
mitem.Add(“Harddisk”);
mitem.Add(“Monitor”);
ArrayAdapter adapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleExpandableListItem1, mitem);
mlistview.Adapter = adapter;
}
}
