SSID erhalten, wenn WIFI verbunden ist?

Question

Ich möchte eine App die WIFI-SSID anzeigen, wenn mit Wifi mit Toast-Nachricht verbunden ist, und ich möchte auch dies in getöteten Zustand auch geschehen, wie kann ich es tun. Dank! Antworten im Voraus Hauptaktivität

public class MainActivity extends AppCompatActivity { 

    private PendingIntent pendingIntent; 

    TextView textConnected, textSsid, textBssid, textMac, textRssi; 

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

     textConnected = (TextView) findViewById(R.id.Connected); 

     textSsid = (TextView) findViewById(R.id.Ssid); 
     textBssid = (TextView) findViewById(R.id.Bssid); 
     textMac = (TextView) findViewById(R.id.Mac); 
     textRssi = (TextView) findViewById(R.id.Rssi); 

     /*DisplayWifiState();*/ 

     this.registerReceiver(this.myWifiReceiver, 
       new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION)); 

    } 

    private BroadcastReceiver myWifiReceiver 
      = new BroadcastReceiver() { 

     @Override 
     public void onReceive(Context context, Intent intent) { 
      ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 
      NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); 
      if (networkInfo.isConnected()) { 
       final WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); 
       final WifiInfo connectionInfo = wifiManager.getConnectionInfo(); 
       if (connectionInfo != null 
         && !(connectionInfo.getSSID().equals(""))) { 
        String ssid = connectionInfo.getSSID(); 

        android.widget.Toast toast = android.widget.Toast.makeText(
          context, "Wifi Connected to " + ssid, android.widget.Toast.LENGTH_LONG); 
        toast.show(); 
       } else { 
        android.widget.Toast toast = android.widget.Toast.makeText(
          context, "Connect to WiFi first", android.widget.Toast.LENGTH_LONG); 
        toast.show(); 
       } 

      } 
     } 
    }; 




     /*private void DisplayWifiState(){ 

      ConnectivityManager myConnManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE); 
      NetworkInfo myNetworkInfo = myConnManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); 
      WifiManager myWifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE); 
      WifiInfo myWifiInfo = myWifiManager.getConnectionInfo(); 

      textMac.setText(myWifiInfo.getMacAddress()); 

      if (myNetworkInfo.isConnected()){ 

       textConnected.setText("--- CONNECTED ---"); 

       textSsid.setText(myWifiInfo.getSSID()); 
       textBssid.setText(myWifiInfo.getBSSID()); 


       textRssi.setText(String.valueOf(myWifiInfo.getRssi())); 
      } 
      else{ 
       textConnected.setText("--- DIS-CONNECTED! ---"); 
       textSsid.setText("---"); 
       textBssid.setText("---"); 
       textRssi.setText("---"); 
      } 

     }*/ 

    } 

Answer 1

if (!wifiManager.isWifiEnabled()) { 
     wifiManager.setWifiEnabled(true); 
} 
List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks(); 
    boolean found = false; 
    for (WifiConfiguration wifiConfig : configuredNetworks) { 
     if (wifiConfig.SSID != null && (wifiConfig.SSID.toString().replaceAll("\"", "")).contains(YOUR_SSID)) { 
      //YOUR CODE GOES HERE 
      break; 
     } 
    } 

Dies funktioniert für mich