Android access to WiFi extranet IP method

android Get WiFi extranet IP method

  Get extranet ip   public static string getnetip ()  {        URL infoUrl = null;       inputstream instream =  null;       try {            // http://iframe.ip138.com/ic.asp             infourl = new url ("http://city.ip138.com/city0.asp");            infourl = new url ("http://ip38.com");            urlconnection connection = infourl.openconnection ();            HttpURLConnection httpConnection =  ( HttpURLConnection)  connection;           int  Responsecode = httPconnection.getresponsecode ();           if  ( RESPONSECODE == HTTPURLCONNECTION.HTTP_OK)  {                instream = httpconnection.getinputstream ();                bufferedreader reader = new  bufferedreader (                        new inputstreamreader (instream,  "Utf-8"));                stringbuilder strber =  new stringbuilder ();                String line = null;                while  (line&Nbsp;= reader.readline ())  != null                     strber.append (line +  "\ n");                instream.close ();                //  Extract IP address        from feedback results          // int start = strber.indexof ("[");                // log.d ("Zph",  ""  + start);               //  int end = strber.indexof ("]",  start + 1);                // LOG.D ("zph",  ""  + end);      &NBSp;         line = strber.substring (378, 395);                line.replaceall (" ",   "");               return line ;           }       } catch   (malformedurlexception e)  {            E.printstacktrace ();       } catch  (ioexception e)  {            e.printstacktrace ();        }       return null;  }

Another high-end way to get extranet IP

Public static string getnetip ()    {   string ip =  "";    try   {   string address =  "http://ip.taobao.com/service/getIpInfo2.php ? Ip=myip ";   url url = new url (address);   httpurlconnection 
connection =  (httpurlconnection)  url   openconnection ();   Connection.setusecaches (False);      if  (Connection.getresponsecode ()  ==  HTTPURLCONNECTION.HTTP_OK)    {   Inputstream in = connection.getinputstream () ;     //  will be converted to strings    bufferedreader reader = new  BufferedReader (   New inputstreamreader (in));      string tmpstring  =  "";   stringbuilder retjson = new stringbuilder ();   while  ( (Tmpstring = readeR.readline ())  != null)    {   retjson.append (tmpstring +  "\ n");   }      Jsonobject jsonobject = new jsonobject (retjson.tostring ());    string code = jsonobject.getstring ("code");   if  (Code.equals ("0"))    {   jsonobject data = jsonobject.getjsonobject ("Data");   IP  = data.getstring ("IP")  +  "("  + data.getstring ("Country")    +  Data.getstring ("area")  +  "district"    + data.getstring ("region")  + data.getstring (" City ")    + data.getstring (" ISP ")  + ") ";      log.e (" Hint ", "
Your IP address is: " + ip";  }   else   {   ip =  "";   LOG.E ("Hint",  IP interface exception, cannot get IP address!) ");  }  }   else   {   ip =&nBSP; "";    LOG.E ("hint",  network connection exception, cannot get IP address!) ");  }  }   catch  (exception e)    {   IP =  "" ";   log.e (" Hint ", " an exception occurred while obtaining an IP address, the exception information is: " + e.tostring ());  }   return  IP;  }

Android access to wifi IP address

Wifimanager wifimanage= (Wifimanager) Context.getsystemservice (context.wifi_service);//Get WifiManager
//  Check to see if WiFi opens if
(!wifimanage.iswifienabled ()) {
wifimanage.setwifienabled (true);  
}
Wifiinfo wifiinfo= wifimanage.getconnectioninfo ();
String Ip=inttoip (Wifiinfo.getipaddress ());  
//convert the obtained int to a real IP address, refer to the Web, modify the next
private String inttoip (int i) {return
(I & 0xFF) + "." + ((I >> 8) & 0xFF)? + "." + ((I >>) & 0xFF) + "." + ((i >>) & 0xFF);

OK, is that good? Oh, don't forget to add permission

<uses-permission= "" Android:name= "Android.permission.ACCESS_WIFI_STATE" ></uses>
<uses- permission= "" Android:name= "Adnroid.permission.CHANGE_WIFI_STATE" ></use

Android development gets wifi and wired IP addresses

Set Permissions First:

<uses-permission android:name= "Android.permission.ACCESS_WIFI_STATE" ></uses-permission>
< Uses-permission android:name= "Android.permission.CHANGE_WIFI_STATE" ></uses-permission>
< Uses-permission android:name= "Android.permission.WAKE_LOCK" ></uses-permission>

/**  * if  (Intf.getname (). toLowerCase (). Equals ("eth0")  | |  intf.getname (). toLowerCase (). Equals ("Wlan0"))   *  says: Only filters for wireless and wired ip. networkinterface have a lot of names   *  such as SIM0,REMT1 ... And so on. I don't need it.   *   * if  (!ipaddress.contains ("::"))    *  represents:  Filter out the address of the IPv6. Both wireless and cable   have this address,  *  my side. The address is generally: fe80::288:88ff:fe00:1%eth0 fe80::ee17:2fff:fece: c0b4%wlan0  *  are generally present in the first cycle. The second cycle is the real IPv4 address .  *   *  @return   *  @throws  SocketException  */   public string getipaddress ()  throws  socketexception {   string ipaddress =  "";   Enumeration< networkinterface> netinterfaces = null;   try {   netInterfaces  = networkinterface.getnetworkinterfaces ();   while  (netinterfaces.hasmoreelements ())  {    NETWORKINTERFACE&NBSp;intf = netinterfaces.nextelement ();   if  (Intf.getname (). ToLowerCase (). Equals ("eth0 ")  | | intf.getname (). toLowerCase (). Equals (" Wlan0 "))  {   for  (enumeration <inetaddress> enumipaddr = intf.getinetaddresses ()  enumipaddr.hasmoreelements ();)  {   inetaddress inetaddress = enumipaddr.nextelement ();   if  (! Inetaddress.isloopbackaddress ())  {   ipaddress = inetaddress.gethostaddress (). toString ();   if  (!ipaddress.contains ("::")  {// ipv6 address    ipaddress =  ipaddress;  }  }  }  } else {   continue;   }  }  } catch  (exception e)  {   e.printstacktrace ();   }  // final contentresolver mcontentresolver =  Getcontentresolver ();  // settings.system.putint ( mContentResolver,  // settings.system.wifi_use_ static_ip, 1);  // settings.system.putstring ( mContentResolver,  //  settings.system.wifi_static_ip,  "Your IP address";      return ipaddress;  }          public string getaddress ()  {   wifimanager  wifimanager =  (Wifimanager)  getactivity (). Getsystemservice (Context.wifi_service);  //
  Determine if WiFi is open    if  (!wifimanager.iswifienabled ())  {   Wifimanager.setwifienabled (True);  }   wifiinfo wifiinfo =  Wifimanager.getconnectioninfo ();   dhcpinfo info = wifimanager.getdhcpinfo ();    int ipaddress = wifiinfo.getipaddress ();   int ii =  info.ipaddress;  // return inttoip (ipaddrESS);   return ipaddress +  "    dhcp: "  + ii;      }         Private string inttoip (int i)  {    return  (I & 0xff)  +  "."  +   ((i >> 8)  & 0xff)  +  "."  +   ((i >> 16)  & 0xff)  +  "."  +   (I&NBSP;&GT;&GT;&NBSP;24&NBSP;&AMP;&NBSP;0XFF);  }  }