获取手机ip地址

需添加如下权限：

   <uses-permission android:name="android.permission.INTERNET" /> 

   <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/> 

    /**
     * 获得ip地址【Old版本，在MX351手机上获取的ip地址有错】，修改by GeXianglin
     * @param context
     * @return
     * @throws SocketException
     */
	public static String getIPAddress(Context context) throws SocketException {
		String ret = null;
		if ((ret = getIPAddressPrivate(context)) != null) { // 主要处理wifi
			return ret;
		}
		
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { // 主要处理3G网络
			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() && (inetAddress instanceof Inet4Address)) {
						return inetAddress.getHostAddress().toString();
					}
				}
			}
		} else {
			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();
					}
				}
			}
		}
		return null;
	}
	
	/*
	 * 获取Ip地址，原来的ip地址获取，在魅族MX351手机上获取ip地址有错，增加这个在老方法里头。
	 * @param context
	 * @return
	 * @author GeXianglin
	 */
	private static String getIPAddressPrivate(Context context) {
		WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
		DhcpInfo dhcp = wifiManager.getDhcpInfo();
		if (dhcp != null) {
			int ipAddress = dhcp.ipAddress;
			return (ipAddress & 0xff) + "." + ((ipAddress >> 8) & 0xff) + "." + 
					((ipAddress >> 16) & 0xff) + "." + ((ipAddress >> 24) & 0xff);
		}
		
		return null;
	}

除了上面的DHCP方法，还可以使用wifiManager.getWifiInfo().getIpaddress()方法获取Ip地址。

// 获取手机WIFI的ip地址
	public static String getLocalIpAddress() {
		WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
	    WifiInfo wifiInfo = wifiManager.getConnectionInfo();
	    int ipAddress = wifiInfo.getIpAddress();	// 获取32位整型IP地址
	
	    //返回整型地址转换成“*.*.*.*”地址
	    return String.format("%d.%d.%d.%d", (ipAddress & 0xff), (ipAddress >> 8 & 0xff),
	    		(ipAddress >> 16 & 0xff), (ipAddress >> 24 & 0xff));
	}

// 获取3G网络的Ip地址

	public static String getIpAddress() {
		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() && inetAddress instanceof Inet4Address) {
                    	return inetAddress.getHostAddress().toString();
                    }
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}

// 获取本地ip

	public  String getLocalIpAddress() {
		String ipAddress = null;
		try {
			List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
			for (NetworkInterface iface : interfaces) {
				if (iface.getDisplayName().equals("eth0")) {
					List<InetAddress> addresses = Collections.list(iface.getInetAddresses());
					for (InetAddress address : addresses) {
						if (address instanceof Inet4Address) {
							ipAddress = address.getHostAddress();
						}
					}
				} else if (iface.getDisplayName().equals("wlan0")) {
					List<InetAddress> addresses = Collections.list(iface.getInetAddresses());
					for (InetAddress address : addresses) {
						if (address instanceof Inet4Address) {
							ipAddress = address.getHostAddress();
						}
					}
				}
			}
		} catch (SocketException e) {
			e.printStackTrace();
		}
		return ipAddress;
	}