使用 xamarin with realm 从服务器获取数据

Question

我正在尝试使用 Xamarin 和 Realm 创建移动应用程序。我正在尝试从服务器中提取数据并将其加载到由 RealmObjects 扩展的对象中。

从服务器获取数据的代码

public async void getCompanyMaster() {
    var uri = new Uri(string.Format(URL, string.Empty));

    try
    {
        getConnection();
        var response = await client.GetAsync(uri);
        if (response.IsSuccessStatusCode)
        {
            var content = await response.Content.ReadAsStringAsync();
            Company company = JsonConvert.DeserializeObject<Company>(content);

            Debug.WriteLine("Company List " );
        }
    }
    catch (Exception e)
    {
        Debug.WriteLine("Error {0}", e.Message);

    }       
}

境界模型公司

namespace DesignModel.Model.Master
{
    public class Company : RealmObject    
    {
        public string errorMessage { get; set; }
        public string status { get; set; }

        [JsonProperty(PropertyName = "companyMaster")]
        IList<CompanyMaster> companyMaster { get; }
    }
}

公司主人的领域模型

namespace DesignModel.Model.Master
{        
    public class CompanyMaster : RealmObject
    {       
        public string companyAddress { get; set; }
        public string companyId { get; set; }
        public string companyName { get; set; }

        public string companyPhoneNumber { get; set; }
    }
}

现在问题出在 getCompanyMaster 函数中的下一行

Company company = JsonConvert.DeserializeObject<Company>(content);

它引发了一个异常

Error Error setting value to 'errorMessage' on 'DesignModel.Model.Master.Company'.

如果我不从 RealmObject 扩展我的 class 那么它工作正常但是当我添加 RealObject 它不起作用。

上述方法在 android 本机中有效，但不知道为什么它在 xamarin 中不起作用。

样本json

{
  "errorMessage": "",
  "status": "Ok",
  "companyMaster": [
    {
      "companyAddress": "123 Coffee Street\nSuite 300\nRedmond, WA 98052\nUSA",
      "companyId": "cec",
      "companyName": "Contoso Entertainment Systems",
      "companyPhoneNumber": "425-555-0156"
    }]    
}

完整的堆栈跟踪

[0:] Error Newtonsoft.Json.JsonSerializationException: Error setting value to 'errorMessage' on 'DesignModel.Model.Master.Company'. ---> System.PlatformNotSupportedException: The PCL build of Realm is being linked which probably means you need to use NuGet or otherwise link a platform-specific Realm.dll to your main application.

Answer 1

从此处找到的文档中添加注释

https://realm.io/docs/xamarin/latest/

在Getting Started - Prerequisites

之下

Important note for PCL users - this works via the NuGet Bait and Switch Trick. You have to install the Realm NuGet package into every PCL that uses Realm as well as each of your platform-specific projects, e.g.: your final app for iOS and Android. If you are using shared projects, you only have to install the NuGet into each platform-specific project.

使用 xamarin with realm 从服务器获取数据

fetch data from server using xamarin with realm

xamarin

realm

realm-mobile-platform