Android 获取本机WIFI及3G网络IP

最新推荐文章于 2025-05-08 14:58:29 发布

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最新推荐文章于 2025-05-08 14:58:29 发布

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本文详细介绍了如何在Android应用中获取本机Wi-Fi IP地址和3G网络IP地址，包括代码实现和权限需求。重点在于通过Java代码实现IP地址获取，并确保代码的正确性和实用性。

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本文出自：http://www.cnblogs.com/zgz345/p/3412958.html

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;
}

+ View Code?<br>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"/>