Android Resource Tool (art): Finds android resource references, and manipulates them.
Example usage:
# Build indices (speed up subsequent commands, required).
art -j java -r res index
# Counts defined, used, and unused string resources:
art -j java -r res counts
# Lists unused string resources
art -j java -r res ls-unused
# Lists unused string resources with definition locations
art -j java -r res ls-unused -s
# Deletes all references to unused string resources with the prefix foo_
art -j java -r res rm-unused -p foo_