Hello again, I can receive and decode traffic messages now. I'm doing this in a service and the next step is to update the ItemizedOverlay object in the map activity as messages are coming. I figured out that a service cannot directly access it's overlying activity. What is a good practice to bring the messages created in the service to the activity?
Lex On Jun 22, 4:10 pm, Lex <[email protected]> wrote: > I am sure about updating the map in real time - how the users are > going to use the application isn't the concern at the moment. I just > got thetrafficmessage specs, so I'll do that and see how far I get > with updating the events on the map. > > Thanks Al! > > On Jun 22, 1:37 pm, "Alistair." <[email protected]> > wrote: > > > Are you sure you want to update the map in real time? In terms of a > > mobile application users are not going to have the application open > > to the map view constantly they will open the app and observe the > > current state of the road location they are interested in. > > > All you really need to do is fetch the latest data when the view is > > opened and update the current event list. > > > Al. > > > On Jun 21, 12:19 pm,Lex<[email protected]> wrote: > > > > Hi everyone, > > > > I am developing a prototype application which features basic > > > navigation (updating of own location on the map) and displays live > > >trafficevents astrafficsign icons on the map. Thetrafficevents > > > will be fetched from a server over a UDP connection. (I haven't > > > implemented this as I don't have thetrafficmessage specs yet). > > > > The idea is to displaytrafficevents in real-time and also delete > > > them when they have expired. I figured out that what I need for this > > > is one or more ItemizedOverlays with dynamic items. I found this post, > > > >http://groups.google.com/group/android-developers/browse_thread/threa... > > > > which seems to be similar to my application. So the circular process > > > is: > > > 1. fetchtrafficdata from server > > > 2. populate an ItemizedOverlay object containingtrafficevents > > > 3. update the map accordingy when the items in the overlay have > > > changed > > > > Apparently in the MapView (or Map Activity?) I need some sort of a > > > listener for changes in the ItemizedOverlay object. What is the best > > > practice for doing this? > > > > Thanks,Lex --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
