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Swift: How to check if my app has WLAN permission and the device is connected to a WIFI source?

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我寻月下人不归
我寻月下人不归 2021-01-14 11:11

I\'m developing an app in which I need to know:

  1. Does my app has the permission to access WLAN network.
  2. Is the device currently connected to a WIFI.
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  • 刺人心
    2021-01-14 11:33

    If you are worried that there may be a captive portal giving a false "connected" status to Reachability then you need to attempt to retrieve a known piece of data from a known website; then if you get the expected result you can be fairly confident that your app has network access.

    For example, http://captive.apple.com returns:

    <HTML>
  <HEAD>
   <TITLE>Success</TITLE>
  </HEAD>
  <BODY>
     Success
  </BODY>
</HTML>

    This is the web site that iOS and macOS attempt to access in order to determine whether the hotspot login helper window should be shown.

    If iOS doesn't get the expected "success" (as is the case if all access is redirected to a "login" screen) or the connection times out then the helper window is shown.

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