【发布时间】：2017-07-20 13:28:42
【问题描述】：
重现问题
1. 创建安卓应用
2. 安装 Nito.AsyncEx.Context
3.添加以下代码
4.设置发布模式
5. 部署代码
6. 启动应用程序（看着它燃烧！它在我的10.1" Marshmallow... 模拟器和Samsung Galaxy Note 10.1 上都崩溃了）
using Android.App;
using Android.Widget;
using Android.OS;
using System.Threading.Tasks;
using System.Net;
using System.Text;
using Nito.AsyncEx;
namespace App1
{
[Activity(Label = "App1", MainLauncher = true, Icon = "@drawable/icon")]
public class MainActivity : Activity
{
private readonly HttpListener listener = new HttpListener();
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
var thread = new System.Threading.Thread(RunThread);
thread.Start();
}
void RunThread()
{
AsyncContext.Run(() => Run()); //Exception in release mode
//Task.Run(Run); //Silent exception in release mode
}
protected async Task Run()
{
listener.Prefixes.Add("http://localhost:8082/");
listener.Start();
while (true)
{
var context = await listener.GetContextAsync();
var data = Encoding.UTF8.GetBytes("<html><body>Hello world</body></html>");
context.Response.OutputStream.Write(data, 0, data.Length);
context.Response.Close();
}
}
}
}
我得到以下异常：
E/mono (29964): Unhandled Exception:
E/mono (29964): System.Net.Sockets.SocketException (0x80004005): mono-io-layer-error (10013)
E/mono (29964): at System.Net.Sockets.Socket..ctor (System.Net.Sockets.AddressFamily addressFamily, System.Net.Sockets.SocketType socketType, System.Net.Sockets.ProtocolType protocolType) [0x00069] in <12894373fb4d403880bd3e387a4ef038>:0
E/mono (29964): at System.Net.EndPointListener..ctor (System.Net.HttpListener listener, System.Net.IPAddress addr, System.Int32 port, System.Boolean secure) [0x0003b] in <12894373fb4d403880bd3e387a4ef038>:0
E/mono (29964): at System.Net.EndPointManager.GetEPListener (System.String host, System.Int32 port, System.Net.HttpListener listener, System.Boolean secure) [0x0009d] in <12894373fb4d403880bd3e387a4ef038>:0
E/mono (29964): at System.Net.EndPointManager.AddPrefixInternal (System.String p, System.Net.HttpListener listener) [0x0005e] in <12894373fb4d403880bd3e387a4ef038>:0
E/mono (29964): at System.Net.EndPointManager.AddListener (System.Net.HttpListener listener) [0x0009c] in <12894373fb4d403880bd3e387a4ef038>:0
E/mono (29964): at System.Net.HttpListener.Start () [0x0000f] in <12894373fb4d403880bd3e387a4ef038>:0
...
【问题讨论】：
-
尝试获取实际的异常消息，将运行代码包装在 try/catch 中，看看它告诉你什么。
标签： c# xamarin.android httplistener