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

WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

// Level of a Scan Result
List wifiList = wifiManager.getScanResults();
for (ScanResult scanResult : wifiList) {
  int level = WifiManager.calculateSignalLevel(scanResult.level, 5);
  System.out.println("Level is " + level + " out of 5");
}

// Level of current connection
int rssi = wifiManager.getConnectionInfo().getRssi();
int level = WifiManager.calculateSignalLevel(rssi, 5);
System.out.println("Level is " + level + " out of 5");