2013.11.19 ——— android 获取本地ip地址

2013.11.19 ——— android 获取本地ip地址

//获取ip地址
    public static String getIpForNet() {  
        try {  
            for (Enumeration<NetworkInterface> en = NetworkInterface  
                            .getNetworkInterfaces(); en.hasMoreElements();) {  
                        NetworkInterface intf = en.nextElement();  
                       for (Enumeration<InetAddress> enumIpAddr = intf  
                                .getInetAddresses(); enumIpAddr.hasMoreElements();) {  
                            InetAddress inetAddress = enumIpAddr.nextElement();  
                            if (!inetAddress.isLoopbackAddress()) {  
                            return inetAddress.getHostAddress().toString();  
                            }  
                       }  
                    }  
                } catch (SocketException ex) {  
                    Log.e("WifiPreference IpAddress", ex.toString());  
                }  
        
        
             return null;  
    }  
    public static String getIpForWifi(Context context){
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); 
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();
        int ipAddress = wifiInfo.getIpAddress();
        String ip = Formatter.formatIpAddress(ipAddress);
        return ip;
    }

有的时候 可能只获取ipv4的地址，所以 上面的判断需要加上

inetAddress instanceof Inet4Address