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androidlistviewcursorandroid-cursoradapter

listview cursor get item on itemclick

I have a listview with some elements that are saved on a database and I access them using a custom content provider.

In my main activity, I have implemented a ResourceCursorAdapter.

What I need is, when I click on a element of the list, the cursor have to access to this item's parameters and send them to another activity. I have almost this done, but I think I'm not getting right the cursor's position. The true is that I don't know how to do this, if I have to use the ID to access the item on the database, or using the position is enough.

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

    Cursor cursor = getContentResolver().query(TravelsProvider.CONTENT_URI, null, null, null, null);

    while(cursor.moveToPosition(position)) {

        Intent intent = new Intent(this, TravelActivity.class);

        intent.putExtra(TravelActivity.EXTRA_CITY, cursor.getString(cursor.getColumnIndex(Travels.CITY)));
        intent.putExtra(TravelActivity.EXTRA_COUNTRY, cursor.getString(cursor.getColumnIndex(Travels.COUNTRY)));
        intent.putExtra(TravelActivity.EXTRA_YEAR, cursor.getInt(cursor.getColumnIndex(Travels.YEAR)));
        intent.putExtra(TravelActivity.EXTRA_NOTE, cursor.getString(cursor.getColumnIndex(Travels.NOTE)));

        cursor.close();

        startActivity(intent);
        super.onListItemClick(l, v, position, id);
    }
}

UPDATE

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

    Cursor cursor = ((CursorAdapter)l.getAdapter()).getCursor();
    cursor.moveToPosition(position);

        Intent intent = new Intent(this, TravelActivity.class);

        intent.putExtra(TravelActivity.EXTRA_CITY, cursor.getString(cursor.getColumnIndex(Travels.CITY)));
        intent.putExtra(TravelActivity.EXTRA_COUNTRY, cursor.getString(cursor.getColumnIndex(Travels.COUNTRY)));
        intent.putExtra(TravelActivity.EXTRA_YEAR, cursor.getInt(cursor.getColumnIndex(Travels.YEAR)));
        intent.putExtra(TravelActivity.EXTRA_NOTE, cursor.getString(cursor.getColumnIndex(Travels.NOTE)));

        startActivity(intent);
        cursor.close();           
    }
}

Also, this is my onCreate method:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getTravelsAdapter();

    //...
}

public void getTravelsAdapter() {

    Cursor c = getContentResolver().query(TravelsProvider.CONTENT_URI, PROJECTION, null, null, null);

    mAdapter = new TravelsCursorAdapter(this, c);
    setListAdapter(mAdapter);
}
Solution

  • you should be able to get the adapter through

    l.getAdapter()

    and safely cast the returned value to your implementation of ResourceCursorAdapter. Than you can use getCursor on the returned value of the previous call, and get the cursor. Once you get the cursor you can move to position with Cursor.moveToPosition(position); and retrieve your data

    Example:

    Cursor cursor = ((TravelsCursorAdapter)l.getAdapter()).getCursor();
cursor.moveToPosition(position);