Android 获取本机WIFI及3G网络IP

zhoujun.g

获取本机WIFI
private String getLocalIpAddress() {
WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
// 获取32位整型IP地址
int ipAddress = wifiInfo.getIpAddress();
//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));
}




3G网络IP
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) {
// if (!inetAddress.isLoopbackAddress() && inetAddress
// instanceof Inet6Address) {
return inetAddress.getHostAddress().toString();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}



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;
}

　　
　　需添加如下权限：
　　<uses-permission android:name="android.permission.INTERNET" />
　　<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>