Cannot capture listview itemselected-CodePudding

I'm trying to capture the item clicked on in a listview. Everything I've seen here deals with Xamarin Forms, I am NOT using Xamarin Forms. I build my listview and display it fine, but I cannot figure out how to capture the item click. My build code:

ListView PhoneNumberList;
PhoneNumberList = FindViewById<ListView>(Resource.Id.listViewNumbers);

ListOfPhoneNumbers = new List<string>();
if (PhoneNumberData.Tables[0].Rows.Count > 0)
{
    foreach (DataRow MyDataRow in PhoneNumberData.Tables[0].Rows)
    {
        ListOfPhoneNumbers.Add(MyDataRow["FirstName"].ToString()   " "   MyDataRow["LastName"].ToString()   " "   MyDataRow["PhoneNumber"].ToString());
    }
}
else
{
    ListOfPhoneNumbers.Add("Currently there are no phone numbers available in this list
}
ArrayAdapter adapter = new ArrayAdapter(this,    Android.Resource.Layout.SimpleListItemMultipleChoice, ListOfPhoneNumbers);
PhoneNumberList.Adapter = adapter;

This code displays the name and phone number as intended, but I cannot figure out how to detect when the Listview is clicked. I tried:

PhoneNumberList.ItemSelected  = (sender, args) =>
{
    var Sel = PhoneNumberList.SelectedItem;
};

But it never gets called on the click. I've also tried:

PhoneNumberList.ItemSelected  = delegate (object sender, AdapterView.ItemSelectedEventArgs args) { PhoneNumberList_ItemSelected(); };

PhoneNumberList_ItemSelected never gets called either.

My Listview XML:

<ListView
    android:minWidth="25px"
    android:minHeight="25px"
    android:layout_width="match_parent"
    android:layout_height="148.4dp"
    android:id="@ id/listViewNumbers" />

So what am I doing wrong?

CodePudding user response：

Ok, after slogging around the internet for a few hours, I was able to work it out. It was rather simple and I had already discovered the answer, I just formated one statement wrong and it sent me on a wild goose chase to find the answer. My updated code:

ListView PhoneNumberList;
PhoneNumberList = FindViewById<ListView>(Resource.Id.listViewNumbers);

ListOfPhoneNumbers = new List<string>();
if (PhoneNumberData.Tables[0].Rows.Count > 0)
{
    foreach (DataRow MyDataRow in PhoneNumberData.Tables[0].Rows)
    {
        ListOfPhoneNumbers.Add(MyDataRow["FirstName"].ToString()   " "   MyDataRow["LastName"].ToString()   " "   MyDataRow["PhoneNumber"].ToString());
    }
}
else
{
    ListOfPhoneNumbers.Add("Currently there are no phone numbers available in this list
}
ArrayAdapter adapter = new ArrayAdapter(this,      Android.Resource.Layout.SimpleListItemMultipleChoice, ListOfPhoneNumbers);
PhoneNumberList.Adapter = adapter;

Exactly the same, now I add the one line of code I just couldn't get right (duh):

PhoneNumberList.ItemClick  = PhoneNumberList_ItemClick;

Originally I had used PhoneNumberList.ItemClick = PhoneNumberList_ItemClick(); and the error it generated sent me off on that aforementioned wild goose chase and there went several hours of my life I'll never get back, lol. The PhoneNumberList_ItemClick code:

void PhoneNumberList_ItemClick(object sender, AdapterView.ItemClickEventArgs e)
{
    // We now can write code here to set the checkbox in the listview to checked
    // All I got to do now is figure out how to do THAT.  Stay tuned ....
}

So, hopefully this will save someone the ordeal I put myself through.

**** Update ****

Didn't take long to figure out how to set the item clicked's checkbok, changes to PhoneNumberList_ItemClick code below:

void PhoneNumberList_ItemClick(object sender, AdapterView.ItemClickEventArgs e)
{
    ListView MyListView = (ListView)sender;
    if (MyListView.IsItemChecked(e.Position))
    {
        MyListView.SetItemChecked(e.Position, true);
    }
    else
    {
        MyListView.SetItemChecked(e.Position, false);
    }
}

.... And that's all folks ....