mdg:geolocation ~ position won't be watched / asked again after error

[hems]

When onError is triggered we should set watchingPosition to false, so then we can call startWatchingPosition again ( and try to fetch the location again ).

At the moment if i received a TIMEOUT error, it doesn't retry and it seems that the app will only update the position if you refresh the page, when you could actually just call watchPosition again and get onPosition callback called.

[lorensr]

I can reproduce this bug. To replicate, eg on Android:

• Turn off system GPS
• Open app
• Turn on system GPS
• Return to app, currentLocation() does not update
• Quit and reopen app, currentLocation() gives location

It would be preferable if this package picks up on the fact that the permissions changed and it can now access GPS.

[hems]

@lorensr in case you need a quickfix, it's pretty simple to roll your own "geolocation api", in my case i preferred to have it as an event emitter and just call "start" when i actually need to ask for permissions.

https://gist.github.com/hems/52823bf5a63d842abfee
( this came straight from my app code, so you need to tweak a couple of things.. )

[lorensr]

Okay, so solution is to repeat the watchPosition call on a timer.

[hems]

@lorensr i believe so, my solution isn't 100% ideal as well, but it did the job of asking permissions again if you go change your settings and come back to the app.

need some fine tuning though, once i make sure it's 100% i'll do a pull request