[JAVA, ANDROID] Use joda-time-android dependency when using android as target

[hoeggi]

As mentioned in #3413 use 'net.danlew:android.joda:$jodatime_version' instead of "joda-time:joda-time:$jodatime_version" for performance improvements

First idea to make this work is wrapping the compile and version definition calls into
if(hasProperty('target') && target == 'android') but I'm not sure if this is the best solution for this.

Maybe someone could point me in a better direction?

[wing328]

@hoeggi that's one way to do it.

Another one is to use CLI option is the owner of the SDK for sure knows that the SDK will be use din Android environment only.

I prefer the way you suggested by checking the target

[cbornet]

We could also use https://github.com/JakeWharton/ThreeTenABP for "java8" dateLibrary

[cbornet]

After checking how these libs works, I don't think this should be part of what we generate: the way to register the libs is to init them from the application context in the create() method. This is out of scope of the API client lib.
Maybe we could generate indications in the README, docs, code on how to use these libraries on android.

[wing328]

Maybe we could generate indications in the README, docs, code on how to use these libraries on android.

Good idea to include more instructions in the doc.

If anyone from the community wants to enhancement the doc for Android API client, please reply to let us know.