po2strings is useful to convert PO/POT gettext files into Apple .strings or Android/Java .xml files.
pip install po2strings
root@host$ po2strings <PO_FILE> <STRINGS_FILE>
e.g.
root@host$ po2strings en.po Localizable.strings root@host$ po2strings en.po values.xml
from po2strings import po2strings executed, error_message = po2strings.run("en.po", "Localizable.strings")