ios - Disable button when no internet connection -

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How can I disable a button when there is no connection to a network / internet in iOS?

Look for Accessibility Code from Apple.

And use it like this: 

  Richability * Accessibility Capabilities = [[Retouchability Possibility for Internet connection]]; [Reach notifier]; NetworkStatus Networks Stats = [Current Reachability Stands] [Accessibility]; BOOL connect = (network status == retinal viii = network status == recyclable wavadon);

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