Android notifyDataSetChanged

Question

I have a list which is filled with a custom ArrayAdapter.

I want to update a progress bar every second, so I am trying to use notifyDataSetChanged

Answer 1

How are you updating the List data structure that is feeding ArrayAdapter?

Please see my answer here: notifyDataSetChanged example

for issues regarding ArrayAdapters and updating the List that holds data for notifyDataSetChanged to work.

Answer 2

I probably have the answer. Try this:

((BaseAdapter) arrayAdapter).notifyDataSetChanged();

I had the same problem and this was the solution for mine :)

Answer 3

If you are not calling this from the main thread try having the main thread call this function. That is usually the problem when notifyDataSetChanged isn't updating the actual screen contents.