Joining cursors and sorting

Question

I\'m writing a \"gallery-type\" app for Android. In the \"master activity\", I have a GridView which I want to load/fill with thumbnails from photos on the device. So I\'ve writ

Answer 1

Hah, it seems one can "trick" Android into allowing CursorJoiner with descending sort by simply ordering by ID*(-1) (ascending):

Cursor c_thumbs = getContext().getContentResolver().query(
                baseUri, 
                MS_proj_thumbs_array, null, null, 
                "(" + PhotoContract.ThumbEntry.COLUMN_IMAGE_ID + "*(-1))"  // NB!
       );

So that solves my problem; newest images on top!

See full answer here: Querying the MediaStore: Joining thumbnails and images (on ID)