CODEWITHSUNDEEP
androidnetwork-programming
Kingfisher Phuoc
Kingfisher Phuoc

Reputation: 8190

Check internet connection with 3G and Wifi in Android

Sometimes, I have to check internet connection in my android app:

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

The code above only work when one Network available! However, my Device has wifi and 3G, the code above always return false when I use both 2 type of network connection above! (I still can use google.com when It return false)!! What did I miss? Thanks!

Upvotes: 3

Views: 3599

Answers (2)

midhunhk
midhunhk

Reputation: 5554

What about this code?

        ConnectivityManager connectivityManager = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);

    NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();

    // Check the current state of the Network Information
    if (networkInfo == null)
        return false;
    if (networkInfo.isConnected() == false)
        return false;
    if (networkInfo.isAvailable() == false)
        return false;
    return true;

Remember to add this in your application manifest file also :

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

Upvotes: 2

Ram kiran Pachigolla
Ram kiran Pachigolla

Reputation: 21191

Try this

private boolean haveNetworkConnection() 
{
    boolean haveConnectedWifi = false;
    boolean haveConnectedMobile = false;

    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo[] netInfo = cm.getAllNetworkInfo();
    for (NetworkInfo ni : netInfo) 
    {
        if (ni.getTypeName().equalsIgnoreCase("WIFI"))
            if (ni.isConnected())
                haveConnectedWifi = true;
        if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
            if (ni.isConnected())
                haveConnectedMobile = true;
    }
    return haveConnectedWifi || haveConnectedMobile;
}

Upvotes: 2

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