问题描述
如何在Flutter中获取我(Android)设备的本地IP地址? 应该是
- 我连接到WIFI时,路由器通过DHCP分配的本地IP地址
- 如果连接到VPN,则由我的VPN服务器分配的VPN网络中的本地IP地址(而不是由VPN服务器本身分配的全局IP地址)
- 通过蜂窝网络连接时的全球IP
解决方法
我现在已经这样解决了,但是如果您有更好的解决方案,那将是明智的:
static Future<String> getLocalIpAddress() async {
final interfaces = await NetworkInterface.list(type: InternetAddressType.IPv4,includeLinkLocal: true);
try {
// Try VPN connection first
NetworkInterface vpnInterface = interfaces.firstWhere((element) => element.name == "tun0");
return vpnInterface.addresses.first.address;
} on StateError {
// Try wlan connection next
try {
NetworkInterface interface = interfaces.firstWhere((element) => element.name == "wlan0");
return interface.addresses.first.address;
} catch (ex) {
// Try any other connection next
try {
NetworkInterface interface = interfaces.firstWhere((element) => !(element.name == "tun0" || element.name == "wlan0"));
return interface.addresses.first.address;
} catch (ex) {
return null;
}
}
}
}