Question

I am new with WIFI connectivity with android. I want to create the application to send the messages to WIFI devices with my android devices so for this i want to ask how to connect our android device to WIFI devices to send the messages.

thanks and regards
Amit

Answer 1

 WifiManager wifiManager;
 wifiManager = (WifiManager)      
 MyWifiActivity.this.getSystemService(Context.WIFI_SERVICE);
 DisplayWifiState();
    BroadcastReceiver myWifiReceiver = new BroadcastReceiver()
     {

      @Override
      public void onReceive(Context arg0, Intent arg1) {
       // TODO Auto-generated method stub
        NetworkInfo networkInfo = (NetworkInfo)               
                 arg1.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
       if(networkInfo.getType() == ConnectivityManager.TYPE_WIFI){
        DisplayWifiState();
       }
      }};
    this.registerReceiver(myWifiReceiver,new    
     IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));    


}


public void DisplayWifiState() 
{
    // TODO Auto-generated method stub
    AlertDialog.Builder alertbox = new AlertDialog.Builder(MyWifiActivity.this);


   if(!wifiManager.isWifiEnabled())
    { 
            Log.i("wifi", "wifi is in disabled mode");
            alertbox.setPositiveButton("Ok", new 
                                            DialogInterface.OnClickListener() 
            {

            @Override
            public void onClick(DialogInterface dialog, int which) 
            {
                // TODO Auto-generated method stub

            }
        });
            alertbox.setMessage("Wifi is disabled ! Please check Wifi 
                                                                     connection");
            alertbox.show();
    //if wifi is already in enabled
    if(wifiManager.isWifiEnabled())
    {
        Toast.makeText(MyWifiActivity.this,"Already on", Toast.LENGTH_LONG).show();
        Log.i("wifi", "wifi in on mode");
      }
  }
}
@Override
protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
     BroadcastReceiver myWifiReceiver = new BroadcastReceiver()
     {

      @Override
      public void onReceive(Context arg0, Intent arg1) {
       // TODO Auto-generated method stub
       NetworkInfo networkInfo = (NetworkInfo) 
                arg1.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
       if(networkInfo.getType() == ConnectivityManager.TYPE_WIFI){
        DisplayWifiState();
       }
      }};
}

@Override
protected void onStart() {
    // TODO Auto-generated method stub
    super.onStart();
     BroadcastReceiver myWifiReceiver = new BroadcastReceiver()
     {

      @Override
      public void onReceive(Context arg0, Intent arg1) {
       // TODO Auto-generated method stub
       NetworkInfo networkInfo = (NetworkInfo) 
                arg1.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
       if(networkInfo.getType() == ConnectivityManager.TYPE_WIFI){
        DisplayWifiState();
       }
      }};
}