Change-Id: Ia78d9c0f4f7e58f500aef55413b911904d0c40cd
Also make use of fragment arguments and targets to simplify code. Change-Id: I79884854f4c7ff4fdc35c68087b5b2235a75c79f
Also re-arrange all preference API demos to go in their own package, since the preferfence APIs themselves are in their own package. Change-Id: I305f77dc09748bb60d1de8a23d063db64c11bb1e