How to delete item from listview using own ArrayAdapter?

Question

I Have problem, I want to delete a row frow listView and this element from ArrayList.

This is my new ArrayAdapter

private ExpenditureAdapter adapter = null;

and I adding to it data using:

adapter = new ExpenditureAdapter(this,R.layout.activity_show_list,addExpenditure.getExpidentures());
        setListAdapter(adapter);

It works correctly, but I want create OnItemClickListener and use it to delete data from listView and from ArrayList<Expenditure>, but how to do it ?

My effort:

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                addExpenditure.getExpidentures().remove();
            }
        });

But ofc it doesn't work.How get index to delete this ?

Remove the item from your arraylist then notify the arrayadapter(notifydatasetchanged) — dindinii
– dindinii, Commented Jun 8, 2016 at 14:00

dindinii · Accepted Answer · 2016-06-08 14:06:55Z

2

Try this

 YourListView.setOnItemClickListener(new OnItemClickListener()
   {
      @Override
      public void onItemClick(AdapterView<?> adapter, View v, int position,
            long arg3) 
      {
              YourArrayList.remove(position);
            YourArrayAdapter.notifyDataSetChanged();
      }
   });

edited Jun 8, 2016 at 14:06

answered Jun 8, 2016 at 14:03

dindinii

6551 gold badge4 silver badges7 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Ice Over a year ago

But how create Listener on Click ?

dindinii Over a year ago

you have to create onitemclicklistener not onclicklistener for the listview

Ice Over a year ago

Almost, now I have problem with listView = (ListView)findViewById(); i have this error Your content must have a ListView whose id attribute is 'android.R.id.list'

dindinii Over a year ago

If you are using ListActivity your xml file must specify the keyword android while mentioning to a ID <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent"/>

Rob · Accepted Answer · 2016-06-08 14:08:54Z

0

You almost have it working, change your listener to this:

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         addExpenditure.getExpidentures().remove(position);
         parent.notifyDataSetChanged();
     }
});

Basically, if you are changing the underlying data of an adapter (your ArrayList), you need to notify the adapter so it can update the list accordingly. This will remove the item and then redraw the list.

answered Jun 8, 2016 at 14:08

Rob

3151 silver badge9 bronze badges

Collectives™ on Stack Overflow

How to delete item from listview using own ArrayAdapter?

2 Answers 2

4 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related