private Method forget;

        private Method connect_netID;

        private Method connect_wifiConfig;

        private Method save;

        public Compatimpl17() {

            try {

                Class ActionListener = Class.forName("android.net.wifi.WifiManager$ActionListener", false, null);

                connect_netID = WifiManager.class.getDeclaredMethod("connect", int.class, ActionListener);

                connect_wifiConfig = WifiManager.class.getDeclaredMethod("connect", WifiConfiguration.class, ActionListener);

                forget = WifiManager.class.getDeclaredMethod("forget", int.class, ActionListener);

                save = WifiManager.class.getDeclaredMethod("save", WifiConfiguration.class, ActionListener);

            } catch (ClassNotFoundException e) {

                e.printStackTrace();

            } catch (NoSuchMethodException e) {

                e.printStackTrace();

            }

        }

 　　　　

        public boolean connect(int networkId) {

            try {

                connect_netID.invoke(getManager(), networkId, null);

                return true;

            } catch (Exception e) {

                e.printStackTrace();

            }

            return false;

        }