Rooted Nexus 7 v2: Using Tor and Adblock Plus
Yes they both use a proxy. Root rqd. Proxies on the wireless nic I believe. They don't interfere with each other. Abp uses port 2020 which I dont think you can configure. So configure tor to use localhost:2020 and if abp is running all good. 

Sorry for bad english. Usibg android keyboa rd and no good on them. 

Part axe.