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Asked: 2020-02-29 13:29:30 +0800 CST 2020-02-29 13:29:30 +0800 CST

How to tell my Android application to always connect to the same Wi-Fi network?

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The device in which the application will be will always be in the same place but in that same place there are many Wi-Fi networks.

Investigating I found that there is the class: WifiManager and its methods: WIFI_STATE_ENABLED, getConfiguredNetworks well I don't know if what I want to do can be done and I also have no idea where to start can someone tell me if it is possible or not?

UPDATE

Apparently what I mentioned above is possible. So far I can get it to connect to a Wi-Fi network it has previously been connected to with the following:

public class MainActivity extends AppCompatActivity {

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

          WifiManager wifiManager= (WifiManager)getSystemService(Context.WIFI_SERVICE);
          wifiManager.setWifiEnabled(true);
    }
}

However, I don't know how to specify which Wi-Fi network it should connect to.

android

1 Answers

  1. Best Answer

    If you want to specify which Wi-Fi network we want our app to connect to, we can use the following code:

        public class MainActivity extends AppCompatActivity {

    String networkSSID = "REDWIFI";
    String networkPass = "password";
    WifiConfiguration conf = new WifiConfiguration();

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

        conf.SSID = "\"" + networkSSID + "\"";
        conf.preSharedKey = "\""+ networkPass +"\"";

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

        if ((wifiManager.isWifiEnabled() == false)) {
        Toast.makeText(MainActivity.this, "Conectando a WIFI...", Toast.LENGTH_LONG).show();
        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;
            }
        }
     }
 }
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