Android中获取有线网络的IP地址

由于项目需要获取当前网络连接的 IP地址，无论有线还是无线。发现有线的Ip 地址获取很多网上的方法都不好用，后来看到setting中状态一项可以看到有线连接的IP地址，于是就直接用setting中的代码了。简单有效。不过需要在系统中编译，因为有未开放的API

直接上代码

/**
* Returns the default link's IP addresses, if any, taking into account IPv4 and IPv6 style
* addresses.
* @param context the application context
* @return the formatted and newline-separated IP addresses, or null if none.
*/
public static String getDefaultIpAddresses(Context context) {
ConnectivityManager cm = (ConnectivityManager)
context.getSystemService(Context.CONNECTIVITY_SERVICE);
LinkProperties prop = cm.getActiveLinkProperties();
return formatIpAddresses(prop);
}

private static String formatIpAddresses(LinkProperties prop) {
if (prop == null) return null;
Iterator<InetAddress> iter = prop.getAllAddresses().iterator();
// If there are no entries, return null
if (!iter.hasNext()) return null;
// Concatenate all available addresses, comma separated
String addresses = "";
while (iter.hasNext()) {
addresses += iter.next().getHostAddress();
if (iter.hasNext()) addresses += "\n";
}
return addresses;
}