Broadcast receiver with RSSI_CHANGED_ACTION never called

Question

BroadcastReceiver doesn't work as expected. Its onReceive() method is not called.

Sample code:

public class MainActivity extends AppCompatActivity {

    private WifiManager wifiManager;
    private final WifiStateReceiver wifiStateReceiver = new WifiStateReceiver();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        IntentFilter intentFilter = new IntentFilter(WifiManager.RSSI_CHANGED_ACTION);
        registerReceiver(wifiStateReceiver, intentFilter);
        wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
        wifiManager.startScan();
    }

    @Override
    protected void onDestroy() {
        unregisterReceiver(wifiStateReceiver);
        super.onDestroy();
    }

    private class WifiStateReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.v("WifiStateReceiver", "WifiStateReceiver.onReceive() is called. Action: " + intent.getAction());
        }
    }

}

Permissions:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

All permissions are granted. I tested this code on Android 8 and Android 10.

https://stackoverflow.com/questions/8717741/application-never-receives-rssi-changed-action — ande, Nov 23 '20 at 18:04

score 0 · Answer 1 · answered Nov 21 '20 at 01:56

0

Refer to this article - https://link.medium.com/dMNM7lF9zbb and place this code:

wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
wifiManager.startScan();

inside your method onReceive()

This should help

answered Nov 21 '20 at 01:56

Nazarii Moshenskiy

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I tried to put startScan() in onReceive(). It didn't work. – Alex Nov 23 '20 at 11:04

Broadcast receiver with RSSI_CHANGED_ACTION never called

1 Answers1