added possibility to load gpx track files

[v1r0x]

See #65 for more info
fixes #39

cc @jancborchardt @Henni @DJaeger @brantje

[jancborchardt]

cc @Frank1604 as well of the GPX viewer app (source) just as on the other pull request.

[v1r0x]

Thanks @jancborchardt totally forgot to add him

[jancborchardt]

Also here, cc'ing the relevant folks of the other GPX apps:

• @Frank1604 of the GPX viewer app (source code)
• @eneiluj of GpxPod (source code)

@Frank1604 @eneiluj let’s work together on one nice Maps app with proper functionality. :)

[Henni]

I fixed a syntax error (a657443)
Seems to work with the example gpx file from https://wiki.openstreetmap.org/wiki/GPX
Great work @v1r0x!

Also there is still some stuff missing:

• zoom to the loaded gpx file
• implement upload
• implement MyTracks functionality
• show more information like direction, height map

[v1r0x]

@Henni thanks for your comments and your fix! After we finished 0.1 milestone I'll get back to this one. Maybe @Frank1604 or @eneiluj can help with that one. :)

show more information like direction, height map

[jancborchardt]

So should this be merged for now and improvements made in further PRs?

[Henni]

@jancborchardt currently clicking "MyTracks" doesn't do anything and clicking "upload" shows an alert.
These two points should be solved before we merge this in by either removing these options for now or implementing their functionality.

[jancborchardt]

In any case, is this smth for 0.1 or rather 0.2?

[v1r0x]

IMO this is 0.2, nothing what a basic maps app should have, but of course a nice feature. I would first finish 0.1 and then try to finish and merge this one.
We should focus on close pending PRs and and open 0.1 tickets.

[jancborchardt]

Then we should hide all tracks functionality for 0.1, right? Also the device tracking stuff?

[v1r0x]

I don't know how and if the device tracking works. If yes, I think we don't have to hide it.
All the other track stuff shouldn't be visible on master right now.

[jancborchardt]

Yeah, I'm kinda thinking about hiding all non-essential Maps stuff for 0.1 and totally focus on the basics. Then after we release 0.1, we can work on polishing all the flows. Cause while these things might work when you fiddle around with them, it's not easily apparent. What do you think @v1r0x @Henni and others?

[Henni]

@jancborchardt Probably a good idea. Let's hide the devices for now

[v1r0x]

Sounds good.