How to check currently internet connection is available or not in android

Question

I want to execute my application offline also, so I need to check if currently an internet connection is available or not. Can anybody tell me how to check if internet is available or not in android? Give sample code. I tried with the code below and checked using an emulator but it's not working

public  boolean isInternetConnection()  {       ConnectivityManager connectivityManager =  (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);     return connectivityManager.getActiveNetworkInfo().isConnectedOrConnecting();  }  

Thanks

Answer 1

This will tell if you're connected to a network:

boolean connected = false; ConnectivityManager connectivityManager = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);     if(connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState() == NetworkInfo.State.CONNECTED ||              connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() == NetworkInfo.State.CONNECTED) {         //we are connected to a network         connected = true;     }     else         connected = false; 

Warning: If you are connected to a WiFi network that doesn't include internet access or requires browser-based authentication, connected will still be true.

You will need this permission in your manifest:

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

Answer 2

You can use two method :

1 - for check connection :

   private boolean isNetworkConnected() {         ConnectivityManager cm = (ConnectivityManager) getContext().getSystemService(Context.CONNECTIVITY_SERVICE);         return cm.getActiveNetworkInfo() != null;     } 

2 - for check internet :

  public boolean internetIsConnected() {         try {             String command = "ping -c 1 google.com";             return (Runtime.getRuntime().exec(command).waitFor() == 0);         } catch (Exception e) {             return false;         }     } 

Add permissions to manifest :

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