how to check wifi or 3g network is available on android device

Question

Here, my android device supports both wifi and 3g. At particular time which network is available on this device. Because my requirement is when 3g is available I have to upl

Answer 1

You need to add below permission in android manifest file:

After that you can use below functions to check wifi or mobile network is connected or not

public static boolean isWifiConnected(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        return ((netInfo != null) && netInfo.isConnected());
    }

public static boolean isMobileConnected(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
        return ((netInfo != null) && netInfo.isConnected());
    }

Some references from developer.android.com are:

1. https://developer.android.com/reference/android/net/ConnectivityManager.html
2. https://developer.android.com/reference/android/net/NetworkInfo.html
3. https://developer.android.com/reference/android/net/ConnectivityManager.html#getActiveNetworkInfo()