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The Unexpected Costs of Background Fetch

David Smith talks about how one of iOS 7’s most important features can unexpectedly increase costs for developers, as data is more frequently requested in the background.

My first example of this was when I added Background Fetch to Check the Weather. A weather app’s primary function is displaying up-to-the-minute, constantly changing data so in my initial iOS 7 update I experimented with adding highly frequent background updates. The result was far more dramatic than I’d expected. […]