I\'ve read many questions here on SO that ask how to enable USB tethering programmatically.
The answer is always the same, ordinary applications can\'t do it, only s
since this is one of the most popular pages in the Google results for this topic I'd like to contribute my code which is checking the available interfaces. It does work on a Gingerbread phone I have, but not my Galaxy S3.
// DETECT INTERFACE NAME
Log.i("UsbTethering","Detecting tetherable usb interface.");
String[] available = null;
ConnectivityManager connMgr = (ConnectivityManager)connectivityServiceObject;
Method[] wmMethods = connMgr.getClass().getDeclaredMethods();
for(Method getMethod: wmMethods)
{
if(getMethod.getName().equals("getTetherableUsbRegexs"))
{
try
{
available = (String[]) getMethod.invoke(connMgr);
break;
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
// DETECT INTERFACE NAME
if(available.length > 0)
{
for(String interfaceName : available)
{
Log.i("UsbTethering", "Detected " + String.valueOf(available.length) + " tetherable usb interfaces.");
Log.i("UsbTethering", "Trying to " + desiredString + " UsbTethering on interface " + interfaceName + "...");
Integer returnCode = (Integer)method.invoke(connectivityServiceObject, interfaceName);
if(returnCode == 0)
{
Log.i("UsbTethering", "UsbTethering " + desiredString + "d.");
return true;
}
else
{
Log.w("UsbTethering", "Failed to " + desiredString + "Usb Tethering. ReturnCode of method " + method.getName() + ": " + String.valueOf(returnCode));
}
}
}