[android]Polyline click listener

[SylvainHocq]

This is a sample evolution in PolylineActivity to show a solution to do an PolylineClickListener system.

[tobrun]

Hey @SylvainHocq, thank you for reaching out and contributing, we really appreciate the contribution but we prefer handling this kind of functionality in core/c++ instead of the android/java bindings. In core we can rely on geometry objects and using intersection methods oppose doing the calculations manually. This will not only be a more performant solution but will resolve the issue for multiple platforms at once.

[SylvainHocq]

Hello @tobrun, I have try this because i need this functionality.
And it seem to be enougth efficient even if it's code in Java.
The method getProximityPolyline take around 80ms, it's not so bad...

But yes i understand it's better to code this in C++ cause of more efficient and , for portability of all platform, but i'm not very confortable in c++ :-(

So do you have an idea of when this feature will be coded?
Thanks.

[tobrun]

Capturing from @1ec5 on the iOS side:

It's on the roadmap for iOS SDK v3.4.0, First we need #5165, then #5502 will be much simpler.

This will normally translate to a similar timeline for Android so 4.2.0 or the release afterwards. I feel your need for this functionality since I created the #3720 a while back. Sorry for not being able to get this functionality in at this point, we aware this is highly requested feature.