Start / stop built-in Wi-Fi / USB tethering from code?

Question

How can I start or stop the built-in tethering in Android 2.2 from my application?

Answer 1

I answered this question here. In short, it is possible, here is the code:

private void setWifiTetheringEnabled(boolean enable) {
    WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);

    Method[] methods = wifiManager.getClass().getDeclaredMethods();
    for (Method method : methods) {
        if (method.getName().equals("setWifiApEnabled")) {
            try {
                method.invoke(wifiManager, null, enable);
            } catch (Exception ex) {
            }
            break;
        }
    }
}

Your app should have the following permission:

android.permission.CHANGE_WIFI_STATE