CODEWITHSUNDEEP
javaandroidandroid-studiowifiandroid-wifi
androiddeveloper
androiddeveloper

Reputation: 11

Android - How to connect Wi-Fi using SSID and Password

I'm getting SSID and Password from user as an input. I want to create a function connectWifi(String SSID, String password) that returns connection successful or invalid credentials. What is the best way to connect Wi-Fi using SSID and Password?

Upvotes: 1

Views: 4960

Answers (3)

Prashant Sharma
Prashant Sharma

Reputation: 1407

You can use this function for android 10 and above

private fun connectToYourWifi(ssid: String, password:String) {

        val wifiNetworkSpecifier = WifiNetworkSpecifier.Builder()
            .setSsid(ssid)
            .setWpa2Passphrase(password)
            .build()

        val networkRequest = NetworkRequest.Builder()
            .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
            .setNetworkSpecifier(wifiNetworkSpecifier)
            .build()

        val connectivityManager =
            applicationContext!!.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
        connectivityManager.requestNetwork(networkRequest, ConnectivityManager.NetworkCallback())
    }

This code open up default dialog to connect with your specific wifi that you want to connect.

Upvotes: 0

Digvijay Wagh
Digvijay Wagh

Reputation: 21

We can use following method to connect wifi with provided password

String connectWifi(String ssid, String password){
   WifiConfiguration wifiConfig = new WifiConfiguration();
   wifiConfig.SSID = String.format("\"%s\"", ssid);
   wifiConfig.preSharedKey = String.format("\"%s\"", password);
   WifiManager wifiManager = (WifiManager)getSystemService(WIFI_SERVICE);
   //remember id
   int netId = wifiManager.addNetwork(wifiConfig);
   wifiManager.disconnect();
   wifiManager.enableNetwork(netId, true);

   boolean isConnectionSuccessful = wifiManager.reconnect();

   if(isConnectionSuccessful){
       return "connection successful";
   }else{
       return "invalid credential";
   }
}

Upvotes: 1

Rajan
Rajan

Reputation: 389

You can try the below code snippet to check for available wifi networks and get connected to a specified wifi network.

List<ScanResult> wifiScanList = wifi.getScanResults();
         wifis = new String[wifiScanList.size()];

         for(int i = 0; i < wifiScanList.size(); i++){
            wifis[i] = ((wifiScanList.get(i)).SSID);                

            if(wifis[i].equals("WiredSSID")) {

                 WifiConfiguration wifiConfig = new WifiConfiguration();
                 wifiConfig.SSID = String.format("\"%s\"", wifis[i]);
                 wifiConfig.preSharedKey = String.format("\"%s\"", "password");

                 WifiManager wifiManager = (WifiManager)getSystemService(WIFI_SERVICE);
                 //remember id
                 int netId = wifiManager.addNetwork(wifiConfig);
                 wifiManager.disconnect();
                 wifiManager.enableNetwork(netId, true);
                 wifiManager.reconnect();
             }
         }

And You must check the correct permission as well !! 

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

Upvotes: 1

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