Add periodic refresh

[Guardiola31337]

Description

Adds periodic refresh functionality

• Fixes Trigger Directions Refresh request every 5 minutes, and then subsequently trigger a faster route check in NavigationView #1763

What's the goal?

Add a polling mechanism to refresh traffic and ETAs on a regular basis (5 minutes) when in navigation

How is it being implemented?

RouteRefresher includes a check method which 👀 if the refresh interval has been met. This is checked within RouteProcessorRunnable and if true, RouteRefresher#refresh is called which calls RouteRefresh#refresh and updates a flag to prevent refresh from being called multiple times until the route response is received. At this point, the refreshed route is passed in via mapboxNavigation.startNavigation(directionsRoute, DirectionsRouteType.FRESH_ROUTE); which updates traffic and ETAs data. Finally, everything is reset in preparation for the next interval check.

TODOs

• Add a new option to MapboxNavigationOptions to enable / disable refresh route (enabled by default every 5 minutes) and remove hardcoded default interval

  mapbox-navigation-android/libandroid-navigation/src/main/java/com/mapbox/services/android/navigation/v5/navigation/MapboxNavigation.java

  Line 935 in 4c5b556

  routeRefresher = new RouteRefresher(this, new RouteRefresh(accessToken), 5 * 60 * 1000);

• Add a new option to MapboxNavigationOptions to customize the refresh interval (defaulted to 5 minutes)

How has this been tested?

• Added "debug" logs to ensure that refresh calls were done on a regular basis / specified interval and data was refreshed properly 👀 that the route line was updated

Checklist

• I have tested locally / staging (including SNAPSHOT upstream dependencies if needed)
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[Guardiola31337]

Enabling refresh by default

[danesfeder]

@Guardiola31337 this is looking great, let's add the options you have marked in the TODOs and 🚢

[Guardiola31337]

Remaining TODOs were addressed and this is updated and ready for a final round of 👀

[codecov-io]

Codecov Report

Merging #1855 into master will increase coverage by 0.23%.
The diff coverage is 72.54%.

@@             Coverage Diff              @@
##             master    #1855      +/-   ##
============================================
+ Coverage     33.59%   33.83%   +0.23%     
- Complexity     1015     1026      +11     
============================================
  Files           254      256       +2     
  Lines          8701     8746      +45     
  Branches        660      662       +2     
============================================
+ Hits           2923     2959      +36     
- Misses         5518     5525       +7     
- Partials        260      262       +2