Hey guys! I have "found" a way to make a Zombie Pigmen Spawner! The guy that you should give the credit to is Megaenzo
He made the iOS version so check out his topics to find out the way for iOS.
Anyway, here is how you do it on Android. You will need: MCPE on an Android device and PocketInveditor (Google Play app) Materials in Minecraft PE needed: One diamond block and one Nether Reactor Core.
First, place the Nether Reactor Core on top of a diamond block Second, go to PocketInveditor and click on that world Subsequently, Go to "Edit Tile Entities" and click the Nether Reactor Core Now, make the Core say "is initialized" in PocketInveditor Go back onto MCPE and wait for the glowing obsidian to spawn Return to PocketInveditor and click on "Has Finished" in the "Edit Tile entities" section Now, you have unlimited Zombie Pigmen
I hope you enjoyed!
PS: If you have any questions, please leave a comment and I will get back to you ASAP.