xamarin andriod popupwindow custom listview itemclick event not working - xamarin

Question

list.ItemClick+= not working. How I can perform item click on popup window custom listview? In simple listview the itemclick event works, but in the popup window the event is not fired. I need to get the listview item value.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="500dp"
android:gravity="center"
android:descendantFocusability="blocksDescendants"
android:layout_height="wrap_content"
android:background="#android:color/background_light"
android:weightSum="100">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_weight="10"
android:layout_height="40dp">
<TextView
android:text="Vælg din afdeling"
android:textSize="20sp"
android:textColor="#FF222222"
android:paddingLeft="30dp"
android:focusable="false"
android:focusableInTouchMode="false"
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minWidth="25px"
android:minHeight="25px"
android:id="#+id/textView1" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="10">
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_weight="50">
<ListView
android:minWidth="25px"
android:minHeight="25px"
android:focusable="false"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/listView1" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="35dp">
<View
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1"/>
<Button
android:id="#+id/btnAddExpense"
android:layout_width="wrap_content"
android:layout_height="45dp"
android:textColor="#61222222"
android:background="#null"
android:text="Annuller"
android:layout_marginLeft="20dp"
android:layout_gravity="right"
android:layout_marginRight="15dp" />
<Button
android:id="#+id/btnok"
android:layout_width="wrap_content"
android:layout_height="45dp"
android:textColor="#FFF62F5E"
android:text="Gem"
android:background="#null"
android:layout_marginLeft="1dp"
android:layout_gravity="right"
android:layout_marginRight="15dp" />
</LinearLayout>
</LinearLayout>
In this function, I set item click event on listview but it is not working. How can I perform itemclick?
private void DepartmentPicker_Click(object sender, EventArgs e)
{
ButtonNext.Visibility = ViewStates.Invisible;
GetListView.Adapter = new DepartmentListAdapter(this, departments);
bool focusable = true;
int width = 350;// LinearLayout.LayoutParams.WrapContent;
int height = 450;//LinearLayout.LayoutParams.WrapContent;
_view.FindViewById<Button>(Resource.Id.btnok).SetOnClickListener(this);
var list= _view.FindViewById<ListView>(Resource.Id.listView1);
popupWindow = new PopupWindow(_view, width, height, focusable);
popupWindow.ContentView = _view;
popupWindow.ShowAtLocation(_view, GravityFlags.CenterVertical, 0, 0);
popupWindow.Focusable = true;
popupWindow.Touchable = true;
//listView.ChoiceMode = ChoiceMode.Single;
}

Answer 1

I wrote a demo about it, this is running GIF.
There is my code of MainActivity.cs
public class MainActivity : AppCompatActivity
{
List<News> data;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
Button button1 = FindViewById<Button>(Resource.Id.button1);
button1.Click += (o, e) =>
{
var popup = OnClick();
popup.ShowAsDropDown((View)o, 0, 0);
};
data = new List<News>() {
new News ("aaaaaaaa",1200),
new News ("bbbbbbbbb",560),
new News ("ccccccccc",158200),
new News ("ddddddddd",900),
};
// adapter = new NewsAdapter(data, this);
}
private PopupWindow OnClick()
{
PopupWindow _popupWindow = new PopupWindow(this);
LayoutInflater inflater= (LayoutInflater)this.GetSystemService(Context.LayoutInflaterService);
View popup=inflater.Inflate(Resource.Layout.window_popup_content,null);
ListView listView1 = popup.FindViewById<ListView>(Resource.Id.listView1);
NewsAdapter adapter = new NewsAdapter(data, this);
listView1.Adapter = adapter;
listView1.ItemClick += (sender, args) =>
{
Toast.MakeText(this, data[args.Position].Title + "", ToastLength.Short).Show();
_popupWindow.Dismiss();
};
_popupWindow.Width = ViewGroup.LayoutParams.WrapContent;
_popupWindow.Height = ViewGroup.LayoutParams.WrapContent;
_popupWindow.ContentView = popup;
return _popupWindow;
}
}
There is adapter of listview.
public class NewsAdapter : BaseAdapter
{
private List<News> data;
private Context context;
public override int Count
{
get
{
return data.Count;
}
}
public NewsAdapter(List<News> data, Context context)
{
this.data = data;
this.context = context;
}
public override Java.Lang.Object GetItem(int position)
{
return null;
}
public override long GetItemId(int position)
{
return position;
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
convertView = LayoutInflater.From(context).Inflate(Resource.Layout.lv_test, parent, false);
TextView title = convertView.FindViewById<TextView>(Resource.Id.tv_title);
TextView pv = convertView.FindViewById<TextView>(Resource.Id.tv_pv);
pv.Text = data[position].Pv.ToString();
title.Text = data[position].Title;
return convertView;
}
xaml of ListviewItem
<?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"
android:background="#ffffff"
>
<LinearLayout
android:id="#+id/layout_content"
android:layout_width="match_parent"
android:layout_height="30dp"
android:orientation="horizontal"
android:gravity="center_vertical">
<TextView
android:id="#+id/tv_title"
android:layout_height="20dp"
android:layout_width="0dp"
android:layout_weight="5"
android:textColor="#000000"
android:text="aaaaaaaaa"
android:textSize="16dp" />
<TextView
android:id="#+id/tv_pv"
android:layout_height="10dp"
android:layout_width="0dp"
android:layout_weight="1"
android:textColor="#808080"
android:textSize="10dp"
android:text="19665"
android:gravity="right|center_vertical" />
</LinearLayout>
<View
android:layout_height="1dp"
android:layout_width="match_parent"
android:background="#dedede" />
</LinearLayout>
There is my demo. you could refer to it.
https://github.com/851265601/ListviewPopUpWindowDemo