How to create ListView disabled item labels for sections of list items?

Question

I have a customized Cursor based adapter for my ListView. Each Cursor has a few columns of data, sorted by the priority column.

I know you can create a disabled list item to act as a sort of header, like in the Market app (the little green labels).

What I would like to do is display a header for each group of items with a different priority. They are already sorted by priority.

Example data:

title, priority
note1, high
note3, high
note2, low
note4, low

Example of what I want in ListView:

===High Priority====
-note1
-note3
===Low Priority=====
-note2
-note4

Any ideas on how I could do this?

Answer 1

Having heading rows in a ListView is a matter of custom-crafting an appropriate ListAdapter. Have areAllItemsEnabled() return false and implement isItemEnabled() as needed.

Where things get tricky is in your chosen data model. Your ListAdapter will need to return 6 from getCount(), since you want six rows in your list. Your underlying data has four rows. That means you are going to have to write a fair bit of code to translate positions from what the ListView thinks (6) to what your data thinks (4), and handling the header rows for the other two positions.