localhost with android not working solution

1. run you wamp server => click right mouse button => and click on "put online"
2. then open your cmd as an administrateur , and pass in this commande word
3. then lot of adresses show-up , then you have just to take the first one , it's look like this example: Adresse IPv4. . . . . . . . . . . . . .: 192.168.67.190 well done ! , that's the addresse, that you will use to connecte to your wampserver in local.
4. open Control Panel >> System and Security >> Windows Firewall
5. then go to control panel > system and security > windows firewall and turn windows firewall off
6. now String reg_url = "http://192.168.00.0/udemy/register.php";

"""   past ur address  >>>>>>    192.168.00.0  """