How to check for Network Connectivity in iOS

What you really want is a method such as (BOOL)networkIsAvailable, returning YES or NO. Apple made it several megabytes long and requires you to study several years before you get to YES or NO.

I hate that! This is such a basic function on an always-connected device that I find it appalling not to have this available to all developers without hassle at all times.

Apple do give us some example code called Reachability in their documentation, which – like so many things – is hopelessly outdated and doesn’t work with ARC anymore: http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html

Thank god for the wonderful Tony Million who has updated the project and made it available on GitHub: https://github.com/tonymillion/Reachability – works with ARC and everything. It’s a simple drop-in class, exactly what we all want and need.

I salute you, Tony! Thank you very much ;-)

Here’s how to add it to your project step by step:

  1. add both Reachability.h and Reachability.m to your project
  2. add the SystemConfiguration.framework to your project
  3. in the class that needs to check for network connectivity, #import Reachability.h
  4. create a method such as this to check which network connection you’ve got:

Obviously check which host you’d like to reach. There are several other methods in this class, such as reachabilityForInternetConnection. Check out Tony’s examples on GitHub for more:

https://github.com/tonymillion/Reachability

Jay is the CEO and founder of WP Hosting, a boutique style managed WordPress hosting and support service. He has been working with Plesk since version 9 and is a qualified Parallels Automation Professional. In his spare time he likes to develop iOS apps and WordPress plugins, or draw on tablet devices. He blogs about his coding journey at http://wpguru.co.uk and http://pinkstone.co.uk.

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