Android 错误：只有创建视图层次结构的原始线程才能在Xamarin中接触其视图

我收到一个错误：只有创建视图层次结构的原始线程才能接触其视图

一致

BookingAdapter expListAdapter = new BookingAdapter (this, listDataHeader,  listDataChild);
try{
explistView.SetAdapter (expListAdapter);
explistView.SetGroupIndicator (null);
}
catch(Exception e) {
Toast.MakeText (this,e+"",ToastLength.Long).Show();
}

这是我的一段代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using System.ServiceModel.Web;
using SalonServices;
using System.ServiceModel;

namespace PariSalon
{
[Activity (Label = "BookingRequest")]           
public class BookingRequest : Activity
{
    public List<GetServices> listDataHeader;
    public List<GetServices> services;
    Dictionary<GetServices, List<String>> listDataChild;
    ExpandableListView explistView;
    public static readonly EndpointAddress EndPoint = new EndpointAddress("http://xxx.xxx.Xx.xx/SalonService/SalonServices.svc");
    //public static readonly EndpointAddress EndPoint = new EndpointAddress("http://xxxx");
    private SalonServicesClient serviceClient;

    protected override void OnCreate (Bundle bundle)
    {
        base.OnCreate (bundle);

        SetContentView(Resource.Layout.Booking_request);
        InitializeSalonServiceClient();
        Button submit = FindViewById<Button> (Resource.Id.button2);


        //string userid = "1";
        //serviceClient.GetServicesForUserAsync (userid);
        string userid = "1";
        serviceClient.GetServicesForUserAsync (userid);
        //serviceClient.GetServicesForUserAsync (userid);

        submit.Click += delegate {
            Intent intent = new Intent(this, typeof(Booking_Request_sent));
            StartActivity(intent);
        };


        // Create your application here
        /*          

        explistView.SetOnGroupClickListener( new OnGroupClickListener());

//Catch click event attempt 2
        explistView.GroupClick += (object pobjSender,   ExpandableListView.GroupClickEventArgs pArgs) =>
        {
            int len = expListAdapter.GroupCount;
            for(int i=0;i<len;i++)
            {

                if(i!=groupPosition)
                {
                    explistView.CollapseGroup(i);
                }
                if(i==groupPosition){
                    if(explistView.IsGroupExpanded(groupPosition)){
                        explistView.CollapseGroup(groupPosition);
                    }
                    else {
                        explistView.ExpandGroup(groupPosition);
                    }


                }
            }
        };*/
    }
    private void InitializeSalonServiceClient()
    {
        BasicHttpBinding binding = CreateBasicHttp();
        serviceClient = new SalonServicesClient(binding, EndPoint);
        //serviceClient.GetServicesForUserCompleted += GetServicesForUserCompleted;
        //serviceClient.GetProductDetailsCompleted += GetProductDetailsCompleted;
        serviceClient.GetServicesForUserCompleted += GetServicesForUserCompleted;

    }


    private void GetServicesForUserCompleted(object sender, GetServicesForUserCompletedEventArgs getServiceDataCompletedEventArgs)
    {
        string msg = null;

        if (getServiceDataCompletedEventArgs.Error != null)
        {
            msg = getServiceDataCompletedEventArgs.Error.Message;
        }
        else if (getServiceDataCompletedEventArgs.Cancelled)
        {
            msg = "Request was cancelled.";
        }
        else
        {
            services = new List<GetServices>(getServiceDataCompletedEventArgs.Result);
            prepareListData ();
            explistView = FindViewById<ExpandableListView> (Resource.Id.expandableselectservicetype);
            BookingAdapter expListAdapter = new BookingAdapter (this, listDataHeader, listDataChild);
            try{
                explistView.SetAdapter (expListAdapter);
                explistView.SetGroupIndicator (null);
            }
            catch(Exception e) {
                Toast.MakeText (this,e+"",ToastLength.Long).Show();
            }


        }

    }

    private static BasicHttpBinding CreateBasicHttp()
    {
        BasicHttpBinding binding = new BasicHttpBinding
        {
            Name = "basicHttpBinding",
            MaxBufferSize = 2147483647,
            MaxReceivedMessageSize = 2147483647
        };
        TimeSpan timeout = new TimeSpan(0, 0, 50);
        binding.SendTimeout = timeout;
        binding.OpenTimeout = timeout;
        binding.ReceiveTimeout = timeout;
        return binding;
    }


    private void prepareListData() {
        listDataHeader = new List<GetServices>();
        listDataChild = new Dictionary<GetServices, List<String>>();
        listDataHeader.Clear ();
        if (services != null) {
            foreach (GetServices pd in services) {
                listDataHeader.Add (pd);
            }
            // Adding child data
            //listDataHeader.Add("Top 250/n");
            //listDataHeader.Add("Now Showing");
            //listDataHeader.Add("Coming Soon..");      

            List<String> childLabel = new List<String> ();
            childLabel.Add ("Date :");
            childLabel.Add ("Time :");
            childLabel.Add ("User :");
            childLabel.Add ("Second User:");
            childLabel.Add ("Status :");
            childLabel.Add ("Cancel ");

            listDataChild.Add (listDataHeader.ElementAt (0), childLabel); // Header, Child data
            listDataChild.Add (listDataHeader.ElementAt (1), childLabel);
            listDataChild.Add (listDataHeader.ElementAt (2), childLabel);
        }
    }


}
}

使用系统；
使用System.Collections.Generic；
使用System.Linq；
使用系统文本；
使用Android.App；
使用Android.Content；
使用Android.OS；
使用Android.Runtime；
使用Android.Views；
使用Android.Widget；
使用System.ServiceModel.Web；
使用美容服务；
使用System.ServiceModel；
巴黎沙龙酒店
{
[活动（Label=“BookingRequest”）]
公共类预订请求：活动
{
公共列表listDataHeader；
公开名单服务；
字典列表数据儿童；
ExpandableListView解释视图；
公共静态只读EndpointAddress EndPoint=新的EndpointAddress（“http://xxx.xxx.Xx.xx/SalonService/SalonServices.svc");
//公共静态只读EndpointAddress EndPoint=新的EndpointAddress（“http://xxxx");
私人沙龙服务客户服务客户；
创建时受保护的覆盖无效（捆绑包）
{
base.OnCreate（bundle）；
SetContentView（资源、布局、预订请求）；
初始化LonServiceClient（）；
按钮提交=FindViewById（Resource.Id.button2）；
//字符串userid=“1”；
//serviceClient.GetServicesForUserSync（用户ID）；
字符串userid=“1”；
serviceClient.GetServicesForUserSync（用户ID）；
//serviceClient.GetServicesForUserSync（用户ID）；
提交。单击+=委派{
意向意向=新意向（此，类型（预订请求已发送））；
星触觉（意向）；
};
//在此处创建应用程序
/*          
explistView.SetOnGroupClickListener（新的OnGroupClickListener（））；
//捕获单击事件尝试2
explistView.GroupClick+=（对象pobjSender，ExpandableListView.GroupClickEventArgs参数）=>
{
int len=expListAdapter.GroupCount；
对于（int i=0；i您正在从工作线程上的
SalonServicesClient
调用
GetServicesForsuercompleted
方法。改为在上调用它。
已接受答案中的链接文章谈到了
InvokeOnMainThread
，这是一个IOS的东西。不知道为什么它会被接受为Android的答案，因为问题是标签格德

对于Android，您使用的是
Activity.RunOnUiThread
。相关文档如下：

因为您是从继承自
活动的某个地方装配的，所以您只需包装相关代码即可：

BookingAdapter expListAdapter = new BookingAdapter (this, listDataHeader,  listDataChild);
try{
    explistView.SetAdapter (expListAdapter);
    explistView.SetGroupIndicator (null);
}
catch(Exception e) {
    Toast.MakeText (this,e+"",ToastLength.Long).Show();   
}

变成：

RunOnUiThread(() =>
{
    BookingAdapter expListAdapter = new BookingAdapter (this, listDataHeader,  listDataChild);
    try{
        explistView.SetAdapter (expListAdapter);
        explistView.SetGroupIndicator (null);
    }
    catch(Exception e) {
        Toast.MakeText (this,e+"",ToastLength.Long).Show();   
    }
});

这就是它的全部内容。
这里是xamarin针对这个问题的跨平台解决方案

 Device.BeginInvokeOnMainThread(() =>
 {
   //Your code here
 });

是的，我得到了答案，谢谢你的支持。+1感谢你的支持。提供的链接仅适用于iOS。它与问题所涉及的Android实现没有任何直接关系。