Pyjnius import jar file

Question

Pyjnius allows you to create a python wrapper for java classes like:

Hardware = autoclass('org.myapp.Hardware')

Is there a way to import an existing *.jar file like that? What does the syntax look like?

Answer 1

You can add the jar into CLASSPATH, then import pyjnius and use autoclass as normal :-):

import os
os.environ['CLASSPATH'] = "path/to/your.jar"

from jnius import autoclass


Bla = autoclass('bla.bla.BlaClass')

Answer 2

As much as jar file relevant only for android, you need to add jar file in your buildozer.spec like

android.add_jars = java/myjar.jar

and in your App's build method

from kivy.utils import platform
...
if platform() == 'android':
    BlaClass = autoclass('java.bla.BlaClass')
...