Any fast way to get the list of folders which contains image?

Asked Dec 23 '11 at 03:58

Active Dec 23 '11 at 03:58

Viewed 1,346 times

I am working on a gallery. Here is the work flow: (1) Display a list of folders which contain images (2) Display a Gallery View that shows selected folder. (I can do it)

I know I can write a loop to find all image folders by look up every folders and files. But it is very slow.

String[] projection = {MediaStore.Images.Media.DATA};
Cursor tmpCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    projection, // Which columns to return
                    null,     // Return all rows
            null, 
                    null);

But it is too slow too.

Is it any alternative way to do it?

The OS Gallery app can load the image folders in a reasonable time. I think it should be some better way to get the list.

asked Dec 23 '11 at 03:58

mobile app Beginner

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Are you executing the query on the UI Thread? – st0le Dec 23 '11 at 06:09
Yes. But I execute it on a new thread, which one is faster? – mobile app Beginner Dec 23 '11 at 13:42
Here's the actual answer to your question http://stackoverflow.com/questions/4195660/get-list-of-photo-galleries-on-android – Fedor Jan 06 '13 at 14:50

Any fast way to get the list of folders which contains image?

0 Answers0