应用程序停滞在File.OpenText()

Question

在Xamarin Android应用程序中，我使用此函数从存储的json文件中读取数据

public async Task<Caselist> readData()
        {
            var file = Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "data_covid_dashboard.json");
            try
            {
                System.Console.Write("Reading data...");
                using (StreamReader fileContent = File.OpenText(file))
                {
                    JsonTextReader reader = new JsonTextReader(fileContent);
                    JObject jo = (JObject)JToken.ReadFrom(reader);
                    return jo.ToObject<Caselist>();
                }
                
            }
            catch (Exception)
            {

                throw;
            }
        } 

然而，应用程序似乎被using (StreamReader fileContent = File.OpenText(file))卡住了

所需文件大小约为130MB。

大家好，

乔纳森

Answer 1

让它起作用了。也要感谢布赖恩。

public async Task<Caselist> readData()
    {
        var file = Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "data_covid_dashboard.json");
        try
        {
            System.Console.Write("Reading data...");
            using (StreamReader fileContent = new StreamReader(file))
            {
                var json = fileContent.ReadToEnd();
                return JsonConvert.DeserializeObject<Caselist>(json);
            }
            
        }
        catch (Exception)
        {

            throw;
        }
    }