How to pass variables on long press on ListView?

Question

I would have listview and a lot of items inside. I want that user can long press on item and set it as Favorite. To do that, I need to get DB id to this menu on long press.

Answer 1

The ContextMenu.ContextMenuInfo you get passed contains information about which item in the list was clicked. You can probably use this to get the information you need.

Update:

Somewhat like dziobas mentions in his answer you can do something like this to get to know which position the selected item has in your adapter:

AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
long arrayAdapterPosition = menuInfo.position;

Now you know the position, and can fetch it from your ArrayAdapter. If you have this ArrayAdapter instance stored in a member variable (in this example I have named it myArrayAdapter), you can then proceed to get the item with ArrayAdapter.getItem(int position):

ToDoItem todoItem = (ToDoItem)myArrayAdapter.getItem(arrayAdapterPosition);
String task = todoItem.getTask();
int id = todoItem.getId();

You could now proceed to set the menu header title as follows:

menu.setHeaderTitle("Favorite: " + task + Integer.toString(id));

Answer 2

If your adapter supports getting Id, so it should look like this:

@Override
public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
    long id = menuInfo.id;
    ...