Hi everyone,

I want to write an app that scans for WiFi networks and displays their
signal strengths, continually updating. It seems like a no-brainer to
use android.net.wifi.WifiManager.startScan() and get the results; but
how?

startScan() says: "The availability of the results is made known later
by means of an asynchronous event sent on completion of the scan". How
do I get this asynchronous event? I can't see any API to register a
listener.
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