CODEWITHSUNDEEP
android
akh
akh

Reputation: 23

How to check if there is data transfer over an available network or not?

I am using the code below to check if there is a network available or not , but sometimes the network is available but there's no data transfer , this is making my internet connection fails and throw an exception .

this is the code : 

    public boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager 
          = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}

so , who can help me finding a solution ?

Thanks

Upvotes: 0

Views: 1464

Answers (2)

Ritesh Gune
Ritesh Gune

Reputation: 16739

I am using following code to check the connectivity because I think just geting the network info does not guarantee internet connectivity. Hence I think it is better to make an actual HTTP request to a remote URL and see if it is successful.

    public static boolean isInternetAvailable(Context cxt) {

        ConnectivityManager cm = (ConnectivityManager) cxt
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo netInfo = cm.getActiveNetworkInfo();

        if (netInfo != null && netInfo.isConnectedOrConnecting() && canHit()) {

            Log.i(App.TAG, "Network connection available.");
            return true;
        }

        return false;
    }

    public static boolean canHit() {

        try {

            URL url = new URL("http://www.google.com/");
            HttpURLConnection urlConnection = (HttpURLConnection) url
                    .openConnection();
            urlConnection.setConnectTimeout(3000);
            urlConnection.connect();
            urlConnection.disconnect();
            return true;

        } catch (Exception e){  
            e.printStackTrace();
            return false;
        } 
    }

Upvotes: 1

MungoRae
MungoRae

Reputation: 1992

The user may be on a BT openzone or similar connection where they have a connection but do not have internet access until they supply a password via a web browser. Data connection issues are always going to happen, you just have to handle them in each case.

Also checkout 

isConnectedOrConnecting()

Which checks whether the user is still establishing a connection. See http://developer.android.com/reference/android/net/NetworkInfo.html

Upvotes: 0

Related Questions