I have created a debug APK with apportable, by typing apportable
in the directory of my xcode project.
Now I'm trying to create a signed APK with apportable for submission.
Have a look at http://docs.apportable.com/publishing.html
Long story short:
.android
-folder using keytool -genkey -v -keystore release.keystore -alias mykey -keyalg RSA -keysize 2048 -validity 10000
(or similar)BUILD=release ANDROID_KEYSTORE=release.keystore ANDROID_KEYSTORE_PASS=mypassword apportable build
Don't forget to save your keys in a safe place as your app-updates need to be signed by the same key.