[android-developers] Re: Live traffic events as icons on a map
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 hakkinen1...@gmail.com 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. alistair.rutherf...@googlemail.com 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,Lexhakkinen1...@gmail.com 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Live traffic events as icons on a map
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 hakkinen1...@gmail.com wrote: Hi everyone, I am developing a prototype application which features basic navigation (updating of own location on the map) and displays live traffic events as traffic sign icons on the map. The traffic events will be fetched from a server over a UDP connection. (I haven't implemented this as I don't have the traffic message specs yet). The idea is to display traffic events 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. fetch traffic data from server 2. populate an ItemizedOverlay object containing traffic events 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Live traffic events as icons on a map
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 the traffic message 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. alistair.rutherf...@googlemail.com 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 hakkinen1...@gmail.com wrote: Hi everyone, I am developing a prototype application which features basic navigation (updating of own location on the map) and displays live traffic events as traffic sign icons on the map. The traffic events will be fetched from a server over a UDP connection. (I haven't implemented this as I don't have the traffic message specs yet). The idea is to display traffic events 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. fetch traffic data from server 2. populate an ItemizedOverlay object containing traffic events 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
