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Although this option will not set up DataUsage properties and all that a real metered network
might provide, it will return a networkCostType of fixed, which allows you to see how your app
responds. You can also use the Show Estimated Data Usage menu item to watch how much traffic
your app generates during its normal operation, and you can reset the counter so that you can
take some accurate readings:
Running Offline
The other user experience that is sure to earn your app a better reputation is how it behaves when there
is no connectivity or when there’s a change in connectivity. Ask yourself the following questions:
• What happens if your app starts without connectivity, both from tiles (primary and secondary)
and through contracts such as search, share, and the file picker?
• What happens if your app runs the first time without connectivity?
• What happens if connectivity is lost while the app is running?
• What happens when connectivity comes back?
As described above in the “Connectivity Awareness” section, you can use the
networkstatus-changed event to handle these situations while running and your resuming handler to
check if connection status changed while the app was suspended. If you have a background task tied to
the networkStateChange trigger, it would primarily save state that your resuming handler would
then check.
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