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() in order to repaint the list but it doesn't seem to work.

score 14 · Accepted Answer · edited May 23 '17 at 12:26

14

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.

edited May 23 '17 at 12:26

Community

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answered Feb 23 '11 at 14:53

jnosek

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score 2 · Answer 2 · answered Feb 27 '10 at 07:28

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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.

answered Feb 27 '10 at 07:28

snctln

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I believe so, whenever i have to update my graphics form a thread I post a message to a handler that I create in my main view. – snctln Feb 27 '10 at 19:43
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please provide an example of how to call it from the main thread – Sheehan Alam Aug 30 '10 at 21:49

score 0 · Answer 3 · answered Sep 15 '16 at 19:57

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I probably have the answer. Try this:

((BaseAdapter) arrayAdapter).notifyDataSetChanged();

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

answered Sep 15 '16 at 19:57

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Android notifyDataSetChanged

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