I'm working on an application with a number of activities, including a MapViewActivity. The map has markers drawn on it as overlays. The marker data is retrieved by regularly polling a web server, which returns a JSON document. The data can change from time to time, and when it does the map must be updated promptly.
What's the recommended way to poll the web server in the background and update the map? I considered using a service, but ran into problems with accessing the map overlays variables. The other approach which springs to mind is to user a TimerTask (maybe calling an AsyncTask if necessary to avoid blocking the UI thread) from the MapViewActivity. Another consideration is that it would be nice to continue polling when in other activities within the same application. This way when the user switches to the map activity, the map is already up to date. This is not a hard requirement though. Thoughts? -- 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
