[android-developers] Re: [Google Map] Handle click on route

On Feb 20, 4:19 pm, TreKing <treking...@gmail.com> wrote:
> Tip: Don't post a giant blob of unformatted, unreadable code. Post the
> least bit of code that will get the point across. No one is going to read
> through all that, it makes your post hard to read, and increases the
> chances of people ignoring your post because they never get to the bottom
> where the real substance is.
>

You're right, I'll remember it.

> > For information, I was thinking about something which would probably
> > be inefficient, but I'll tell it, we never knows :)
>
> Try it. See how fast it is. Profile it. Optimize it, if necessary.
>
> > Since the route establishement is basicaly a succession of drawings
> > beetween two geopoints (segments), we could prehaps handle route
> > clicking this way :
>
> >  - Using the `onTouchEvent` method of the map overlay, we can get the
> > geopoint associated to a click.
> >  - Then we try to establish if the clicked geopoint is part of a route
> > segment.
>
> You probably want to determine if the clicked geopoint is "close enough" to
> a route segment, as it's unlikely the user will always perfectly tap on a
> route segment or point on said segment.
>
> > One last information : Several routes will be drawn on the map at the same
> > instant, so the click must be associated to a unique route and not all of
> > them.
>
> Then stop processing the tap event after you find one valid route.
>

The main message of this post was 'Am I missing something ?', is there
another solution to manage route clicking than the one I briefly
exposed.
Since I didn't found any additional information, I'm going to test the
route clicking management this way, finding if the clicked geopoint is
close to a route segment (depending on the road drawing heavyness).

Thank you.

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