SwiftUI Network Reachability with NWPathMonitor and Observation

Knowing if the device is online isn't enough — you also need to know how it's connected.

What this video covers:

  • Setting up NWPathMonitor for network monitoring
  • Detecting connection type: Wi‑Fi, cellular, wired, or none
  • Identifying expensive networks (cellular, personal hotspot)
  • Reacting to changes using @Observable and @Environment
  • Showing user‑friendly messages for different connection states

Real example: A video streaming app that warns users when on cellular, or a download manager that pauses on expensive networks.

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