Is there a way to check whether tethering is active?

Question

can I check programmaticall wheter the android device has tethering activated?

I just watched the WifiManager class. All vatraibles from the WifiInfo show the same values as iff the WIFI is turned off on the device.

Thnaks, best regards

Answer 1

First, you need to get WifiManager:

Context context = ...
final WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

Then:

public static boolean isSharingWiFi(final WifiManager manager)
{
    try
    {
        final Method method = manager.getClass().getDeclaredMethod("isWifiApEnabled");
        method.setAccessible(true); //in the case of visibility change in future APIs
        return (Boolean) method.invoke(manager);
    }
    catch (final Throwable ignored)
    {
    }

    return false;
}

Also you need to request a permission in AndroidManifest.xml:

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