Identify the item clicked on ListActivity method onListItemClick

Question

Hello.

I'm developing an Android application.

I have several objects loaded on a ListActivity. I want to know the item clicked on event onListItemClick.

I see method onListItemClick has a parameter called id. How can I setup this id?

My objects are identified by an ID, how can I add this ID to listItem?

Thanks.

Answer 1

Use the following;

listView.getItemAtPosition(position);

Where listView is the name of your list view.

Answer 2

What is the source of your list data? If you are using a cursor - then the id passed in 'onListItemClick(ListView l, View v, int position, long id)' will automatically be the id of the cursor row.

Answer 3

In this case, just access the id. The id you will get, will the id of selected item. (Remember you are using the onItemClickListener, which will be fired only when user clicks on the list item and returns the clicked item.)

Answer 4

if SectionObj is your object that you want to access later, set that in the adapter when you set the source.

ArrayList<SectionObj> li

ArrayAdapter<SectionObj> adapter=new ArrayAdapter<SectionObj>(getApplicationContext(),android.R.layout.simple_list_item_1, li);
    setListAdapter(adapter);

then in ur listener method..

protected void onListItemClick(ListView l, View v, int position, long id) {

SectionObj o=(SectionObj)getListView().getItemAtPosition(position);

}