Getting WiFi signal strength in Android

Question

I can get WiFi signal level in dBm using following code.

for (ScanResult result : wifiScanResultList) {
    int signalLevel = result.level;
}

Answer 1

Yes, exactly. This is how dBm values for received signal power are represented. Here are some details at Wikipedia.

-100 means lowest value (no signal at all), and 0 means extremely good signal (100%)