iOS Interview: Background Fetch || Background Task | by Ravi Ranjan | CodeX | Medium
swift - How to run a service in iOS background to receive local notification? - Stack Overflow
Using background tasks to update your app | Apple Developer Documentation
How to run background services in iOS using Swift - Quora
Background Modes Tutorial: Getting Started | Kodeco
swift - How to do a request in background each 5 minutes in iOS - Stack Overflow
Swift iOS CLLocationManager All-In-One | by Myrick Chow | ITNEXT
Top Swift Development Mistakes | Toptal®
Best practice: iOS background processing - Background App Refresh Task - Uy Nguyen
Best practice: How to deal with Bluetooth Low Energy in background - Uy Nguyen
Background Modes Tutorial: Getting Started | Kodeco
Background Transfer Service in iOS 7 SDK: Download File in Background
Rich notifications on iOS explained in Swift - SwiftLee
Beyond Scripting in Swift: Running background activities – The Eclectic Light Company
iOS Performance Tricks To Make Your App Feel More Performant — Smashing Magazine
About the background execution sequence | Apple Developer Documentation
Sure, Kids Can Develop iPhone Apps. But It's Not Easy | WIRED
Handling location updates in the background | Apple Developer Documentation
Downloading files in background with URLSessionDownloadTask
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Application states - Learn Swift by Building Applications [Book]
The Ultimate Guide to Apple's Core Bluetooth | Punch Through
objective c - Background Location Services not working in iOS 7 - Stack Overflow
