Hi Ilan,
I've tried your application. I've tried it on both my phone (Galaxy S5) and Galaxy 10.1 tablet.
There may be a bug, the further down the screen I draw, the further up the screen the pixel actually draws. for example, the top row is fine, but by the time I try to draw on the middle row, it actually draws one row above my stylus, at the bottom of the screen it draws two pixels above. How are you translating the touch position to the drawing grid???? this only happens on my tablet, not on my phone.
By default it would be good to be able to draw over pixels, rather than having to clear them first then draw over them, this may be because you want to change the colour of something by drawing over it, or in my case, I loaded the pulp fiction demo picture and wanted to add a gold watch to the characters arm, but found I had to clear the pixels before I could draw the gold watch strap.
When the menu is on screen, it would good to minimize the menu again when the user clicks on the picture.
As an older user, I used to use Deluxe paint 4 on the Amiga computer, this had an animation tool called onion skinning, which took the previous frame, then showed it faded behind the current frame, you could do this in your app by showing the previous frames pixels at double brightness to make them look faded, then draw the current frames pixels on top.
I see there is a grid size option, but it would be good to know how big the grid it, if designing sprites for games, you'll need to know what size you are working with. MAybe use a toast popup message to show the dimensions of the grid when you change grid size.
The community section is very good, however the previews don't seem to be working for me.
On the select a color box, clicking the colour selected at the top should open the custom colour screen that the paint bucket icon opens.
when downloading a community file, it would be nice to have an option to open the file straight away, with out having to then exit the community menu then open the file downloaded from the load menu.
I will try drawing something and uploading to the community when I get more spare time.
good application though, good luck with any future improvements you make to it.
oh, how are you handling the community side, is it an online Database on a free server somewhere? running b4j or PHP based?