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ARC and GCD Compatible Reachability Class for iOS and MacOS
Reachability is a lightweight Objective-C wrapper around Apple’s SCNetworkReachability that reports whether the network is reachable and via which interface (Wi-Fi or cellular). It exposes both notifications and blocks so you can react to connectivity changes without polling. Typical usage is to gate network requests, disable online-only UI, and show graceful messaging when connectivity drops. The implementation is careful about threading and runloop scheduling so events arrive reliably...
...(The kid got emails from the archdiocese of New Orleans, no lie.) Over time, anything that I'd use often for different projects would wind up in tapku after I felt it was A. something that would be helpful to share between projects and B. up to the standard of sharing with the community.