Enabling USB tethering programmatically - there is an app that did it for 2.3

Question

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

Answer 1

I know its an old thread but i hope this could help some other people in the future ,

That code worked for me in Android 4.4(with root privilege)

code: the trick is to use reflection , the method which changes the usb tethring is called "setUsbTethering"

I wont write the entire class but here is what you need:

ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Method usbTethering = connectivityManager.getClass().getMethod('setUsbTethering')
int returnCode = (Integer)usbTethering.invoke(connectivityManager, true);

0 = success

you can print the entire class methods using the following code

private static void printClassMethod(@NonNull Class aClazz) {
Method[] wmMethods = aClazz.getDeclaredMethods();
  for (Method method : wmMethods) {
     Log.i('anytag', method.getName());
  }
}

then call printClassMethod(ConnectivityManager.class)

More Over, you can go onto the class itself and check the methods and arguments needed.

to get things work: you must set your app as System app,

1. Declare in manifest : android:sharedUserId="android.uid.system"

2. add writing secure permission

3. Sign the apk using google certificate key(apk-with-system-privileges) and push it to /system/app

Mind, that usbTethering is turned on while USB is attached, so a nicer solution will be to register to both USB_STATE and USB_ATTACH and enable/disable it correspondingly in onReceive Method. (USB tethering is turned off automatically when USB is de-attached)