Could some explain or point me in the right direction the relationship between thumbnails and images, including:
How are thumbnails generated?
Why some photos don't have thumbnails others do?
The correct method getting a list of thumbnails for each photo?
The table schema behind the photos
Who responsibility it is to generate a thumbnail if I download and save an image. (as the MediaScanner doesn't seem to want to do it)
I looked at various posts but all seem to have slightly different solutions for displaying gallerys which produce different results on different platforms. (ie. on a G1 works perfectly, on a HTC desire lots of blank thumbnails).