unable to connect with desired Wifi Network programmatically

Question

I'm using following code to scan and connect my desired network. It works fine if my Network is already connected, in that case it disconnects and reconnects while i click my scan button. But when no network is connected and wifi is ON , then it doesn't connect. What could be the possible issue. Any suggestion would be highly appreciated.

WifiBroadCastReceiver:

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.ScanResult;
import android.net.wifi.SupplicantState;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.util.Log;
import android.widget.Toast;

import java.util.List;

public class WifiBroadReceiver extends BroadcastReceiver {

    final static String networkSSID = "myDevice";
    final static String networkPass = "password";
    Context context;

    @Override
    public void onReceive(Context context, Intent intent) {
        this.context = context;
        String action = intent.getAction();
        if (WifiManager.SUPPLICANT_STATE_CHANGED_ACTION.equals(action)) {
            SupplicantState state = intent.getParcelableExtra(WifiManager.EXTRA_NEW_STATE);

            if (SupplicantState.isValidState(state)
                    && (
                    state == SupplicantState.COMPLETED
                            || state == SupplicantState.DISCONNECTED
                            || state == SupplicantState.SCANNING
            )) {

                boolean connected = checkConnectedToDesiredWifi();

                if (!connected) {
                    try {
                        addMyNetwork(context);
                    } catch (Exception e) {
                    }
                }
            }
        }
    }

    /**
     * Detect you are connected to a specific network.
     */
    private boolean checkConnectedToDesiredWifi() {
        boolean connected = false;

        String desiredMacAddress = networkSSID;

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

        WifiInfo wifi = wifiManager.getConnectionInfo();
        if (wifi != null) {
            // get current router Mac address
            String bssid = wifi.getBSSID();
            connected = desiredMacAddress.equals(bssid);
              }

        return connected;
    }


    private void addMyNetwork(Context context) {

        WifiConfiguration conf = new WifiConfiguration();
        conf.SSID = "\"" + networkSSID + "\"";   // Please note the quotes. String should contain ssid in quotes
        //Then, for WEP network you need to do this
        conf.wepKeys[0] = "\"" + networkPass + "\"";
        conf.wepTxKeyIndex = 0;
        conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
        //For WPA network you need to add passphrase like this:
        conf.preSharedKey = "\"" + networkPass + "\"";
        //For Open network you need to do this:
        //conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

        //  Then, you need to add it to Android wifi manager settings:
        WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);

        //--------
        wifiManager.setWifiEnabled(true);

        wifiManager.addNetwork(conf);

        List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
        for (WifiConfiguration i : list) {
            if (i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
                wifiManager.disconnect();
                wifiManager.enableNetwork(i.networkId, true);
                wifiManager.reconnect();
                break;
            }
        }
    }

}

onButtonClick:

public void onWifiClick(View view) {

        BroadcastReceiver broadcastReceiver = new WifiBroadcastReceiver();
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
        registerReceiver(broadcastReceiver, intentFilter);
    }

does `addMyNetwork` get called? – Vladyslav Matviienko Sep 13 '17 at 06:25 — Vladyslav Matviienko, Sep 13 '17 at 06:25
This isn't an Android Studio issue. Don't use that tag – Zoe Sep 13 '17 at 06:27 — Zoe, Sep 13 '17 at 06:27
@VladMatvienko yes it gets called. – Usman Rana Sep 13 '17 at 07:00 — Usman Rana, Sep 13 '17 at 07:00

score 0 · Answer 1 · answered Jun 03 '19 at 06:04

0

Please check my answer here for an optimal solution!, tested and works well for Oreo+

Happy Coding!

answered Jun 03 '19 at 06:04

SaadurRehman

622
8
20

unable to connect with desired Wifi Network programmatically

1 Answers1