Maggots in Compost - Anything I can do to help them?

I have a barrel that I removed the ends of to create a tube, and I've been filling it with alternating layers of food scraps and woodchips (to add carbon and prevent smell).

I went out there today and saw a bunch of maggots in my bin, probably due to all of the cooked and raw meat I've been adding. Is there anything I can do to help them decompose everything?
I've noticed that they seem to be staying in the shade, would covering half of the top with something be a good idea? Should I add water?

I gave them some more meat (which they started eating very quickly) as well as some anaerobic compost that had been sealed for half a year. They seemed to really like that as well, but I'm not sure if they were eating it or just enjoying the moisture.