Question

I have a service which polls every hour attempts to sync data automatically to the web from the device.

I have it working but I need to find a way to establish an internet connection if there is not one available.

For example – If my phone is in standby mode (screen locked for a period of time) the internet connection is dropped and it is unable to sync when it needs to.

I would like to attempt to connect via wifi if available, then using 3G if required.
Is there a reliable way to do this?

UPDATE –
I found an article online which uses this code to attempt connection via 3G if there is no wifi available :

int resultInt = connectivityManager.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, "enableHIPRI");

unfortunately it doesn’t seem to work on all devices, maybe I need to try other options than “enableHIPRI” ??

Any ideas?

Answer 1

OK, although I haven’t been able to solve this problem I have discovered that the main cause for the delay in between sync attempts is because the cpu gets stopped during sleep mode, this means my timer task was paused..

My workaround was to rewrite the service using a wakeful intent to get around the timer issue.

This makes my solution much more reliable so I am closing this question! 🙂