Android SDK 對於行動網路的開關一直屬於非公開的部分,

不過目前(版本4.4以前)還是可以透過Java relection的方式來實現

方法如下:

    public static boolean isMobileDataEnabled(ConnectivityManager cm){
        try {
            Method method = cm.getClass().getMethod("getMobileDataEnabled");
            return (Boolean) method.invoke(cm);
        } catch (NoSuchMethodException e) {
            Log.d(TAG,"NoSuchMethodException");
        } catch (Exception e) {
            Log.d(TAG,"Exception");
        }
        return false;
    }

    private void setMobileDataEnabled(boolean onOff) {
        boolean isOn = isMobileDataEnabled(connectivityManager);
        if((onOff && isOn) || (!onOff && !isOn)){
            return;
        }
        try {
            Method method = connectivityManager.getClass().getMethod("setMobileDataEnabled", boolean.class);
            method.invoke(connectivityManager, onOff);
        } catch (NoSuchMethodException e) {
            Log.d(TAG,"NoSuchMethodException");
        } catch (Exception e) {
            Log.d(TAG,"Invoke Exception");
        }
    }

但因為是非公開API, 也許哪一天這個方法也會被擋掉也說不定