如何获得在Xamarin.Forms中的wifi模块上创建的服务器(不是Web服务器)的IP地址,而是一个TCP服务器 [英] How do you get the IP address of a server (not a webserver) but a TCP server created on a wifi module in Xamarin.Forms
问题描述
我需要获取运行TCP服务器的Wi-Fi模块的IP地址.该应用程序将打开"WiFi连接设置"页面,以允许用户连接到Wi-Fi模块创建的网络(要求输入密码)-请参阅所附图片.服务器(Wi-FI模块)的IP地址是172.1.4.155(例如),但是当我尝试使用 GetLocalIPAddress() (附加在下面),它返回的地址是设备(电话)的本地IP地址-172.1.4.55(例如).我需要能够以编程方式获取IP地址,而无需在应用程序中输入用户信息.
I need to get the IP address of a Wi-Fi module, running a TCP server. The application will open the WiFi connections settings page to allow the user to connect to the Wi-Fi module's created network (requiring the password to be entered)- see attached picture. The server (Wi-FI module) IP address is 172.1.4.155 (for example) but when I try to get the IP address in Xamarin.Forms using GetLocalIPAddress() (attached below), the address it returns is the local IP address of the device (Phone)- 172.1.4.55 (for example). I need to be able to get the IP address programmatically without a user input in an Application.
有什么方法可以获取(外部)非设备特定IP地址的IP地址?我假设电话返回的IP地址是DHCP分配的IP地址.我需要获取服务器IP地址,因为在电话和WiFi模块之间建立TCP套接字连接是必不可少的.几天以来,我一直在寻求没有成功的解决方案,因此,我们将不胜感激任何帮助/建议或示例.
Is there any way to get the IP address of the (external) non-device specific IP address? I assume the returned IP address of the phone is the DHCP assigned IP address. I need to get the server IP address as it is essential to establish a TCP socket connection between the phone and the WiFi module. I have been trying to look for a solution without any success for a few days now so any help/suggestions or examples will be greatly appreciated.
下面的代码是 GetLocalIPAddress()函数,用于获取IP地址.
The code below is the GetLocalIPAddress() function to get the IP address.
public static string GetLocalIPAddress()
{
var host = Dns.GetHostEntry(Dns.GetHostName());
foreach (var ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
return ip.ToString();
}
//return "";
}
//throw new Exception("Local IP Address Not Found!");
return "None";
}
推荐答案
如何以XAMARIN格式读取IP地址,我已经在IOS和Android项目中创建了DependencyServices,并获得了正确的IP地址.下面是获取IP地址的代码.
How to Read IP Address in XAMARIN Form, i have Created the DependencyServices in both IOS and Android projects and getting a proper IP address. Below is code to get IP address.
在PCL项目中
public interface IIPAddressManager
{
String GetIPAddress();
}
在IOS项目中
[assembly: Dependency(typeof(YourAppNamespace.iOSUnified.iOS.DependencyServices.IPAddressManager))]
namespace YourAppNamespace.iOSUnified.iOS.DependencyServices
{
class IPAddressManager : IIPAddressManager
{
public string GetIPAddress()
{
String ipAddress = "";
foreach (var netInterface in NetworkInterface.GetAllNetworkInterfaces())
{
if (netInterface.NetworkInterfaceType == NetworkInterfaceType.Wireless80211 ||
netInterface.NetworkInterfaceType == NetworkInterfaceType.Ethernet)
{
foreach (var addrInfo in netInterface.GetIPProperties().UnicastAddresses)
{
if (addrInfo.Address.AddressFamily == AddressFamily.InterNetwork)
{
ipAddress = addrInfo.Address.ToString();
}
}
}
}
return ipAddress;
}
}
}
在Android项目中.
In Android Project.
[assembly: Dependency(typeof(YourAppNamespace.Android.Android.DependencyServices.IPAddressManager))]
namespace YourAppNamespace.Android.Android.DependencyServices
{
class IPAddressManager : IIPAddressManager
{
public string GetIPAddress()
{
IPAddress[] adresses = Dns.GetHostAddresses(Dns.GetHostName());
if (adresses !=null && adresses[0] != null)
{
return adresses[0].ToString();
}
else
{
return null;
}
}
}
}
然后在UI项目中调用DependencyServices.
Then call a DependencyServices in UI project.
string ipaddress = DependencyService.Get<IIPAddressManager>().GetIPAddress
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