Create a cursor from hardcoded array instead of DB

android cursor
FaddishWorm picture FaddishWorm · Aug 17, 2013 · Viewed 18.3k times · Source

I am trying to make a drag-and-drop list for a little game app I am writing.

There are 6 entries in the list. However the library I added required a Cursor object that talks to a DB. This is overkill for my situation.

Is there a way to create a Cursor object that is based on a memory-based data structure like an array? Is there a way I can used a hard-coded array as my Cursor?

Thanks

Answer

Trinimon picture Trinimon · Aug 17, 2013

Check out the MatrixCursor documentation. Check for instance this example.

String[] columns = new String[] { "_id", "item", "description" };

MatrixCursor matrixCursor= new MatrixCursor(columns);
startManagingCursor(matrixCursor);

matrixCursor.addRow(new Object[] { 1, "Item A", "...." });

SimpleCursorAdapter adapter = 
        new SimpleCursorAdapter(this, R.layout.layout_row, matrixCursor, ...);

setListAdapter(adapter);

Related questions

What's the best way to iterate an Android Cursor?

I frequently see code which involves iterating over the result of a database query, doing something with each row, and then moving on to the next row. Typical examples are as follows. Cursor cursor = db.rawQuery(...); cursor.moveToFirst(); while (cursor.…

Read More
Android: Binding data from a database to a CheckBox in a ListView?

I'm trying to bind data from my SQLiteDatabase to a ListView. I'm currently using a SimpleCursorAdapter to fill in my ListView. Unfortunately this doesn't seem to work with setting a CheckBox's checked attribute. This is how I do it now; …

Read More
How to get contacts' phone number in Android

My code is as below: String[] columns = {ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.HAS_PHONE_NUMBER}; Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, columns, null, null, null); int ColumeIndex_ID = cursor.getColumnIndex(ContactsContract.Contacts._ID); int …

Read More