Use connectiq android SDK instead of localhost webserver

[fm-sys]

Using the proper connectiq android SDK instead of a localhost webserver would help to avoid the problem that the Garmin Connect App refuses the connection from gimporter to gexporter, if the phone has no internet access...

https://developer.garmin.com/connect-iq/core-topics/mobile-sdk-for-android/

[haraldh]

Well, AFAIK there is no way to import data as FIT or GPS. At least there was not, when I created the app. Please let me know, if they added such API in the meantime.

[haraldh]

The only thing we could exchange is the listening port of the web server, so it would not have to be hardcoded.

[ravenfeld]

For having coded the same need there was nothing 2 months ago, that the http can have an answer with a fit.

https://developer.garmin.com/connect-iq/api-docs/Toybox/Communications.html