在 WP7 Silverlight 中保存游戏的简单方法? [英] Easy way to save game in WP7 Silverlight?

问题描述

在 WP7 Silverlight 中保存游戏状态的最佳方法是什么?我更喜欢将它保存在文本文件中.我想在应用程序进入后台时保存游戏(例如有人打电话，用户点击返回"等)或关闭.我该怎么做?

What is the best way to save game state in WP7 Silverlight? I prefer to save it in text file. I want save game when application goes to background (for example someone is calling, user clicks 'back' etc.) or closing. How can I do this?

推荐答案

更新，此代码来自以下文章:

update, this code is from the following articles:

用于后台任务、Toast 和 Tiles 的简单 WP7 Mango 应用简单的WP7芒果后台任务、Toast 和 Tiles 应用:代码说明

IsolatedStorage 运行良好.

IsolatedStorage works well.

这是我用来将一个实例序列化和反序列化到IsolatedStorage 中的json(或xml)的类.这个例子是使用 ServiceStack.Text 但它可以切换出来.

This is a class I use to serialize and deserialize an instance to json (or xml) in IsolatedStorage. This example is use ServiceStack.Text but it can be switched out.

使用、读取和写入:

public class MyClass {
    public void Save() {
        MutexedIsoStorageFile.Write(this, "MyClass.json", "MYCLASSJSON");
    }

    public static MyClass Load() {
        return MutexedIsoStorageFile.Read<MyClass>("MyClass.json", "MYCLASSJSON");
    }
}        

public static class MutexedIsoStorageFile
    {
        public static T Read<T>(string fileName, string mutexName) where T : new()
        {
            var mutexFile = new Mutex(false, mutexName);
            var model = new T();
            mutexFile.WaitOne();

            try
            {
                using (var store = IsolatedStorageFile.GetUserStoreForApplication())
                using (var stream = new IsolatedStorageFileStream(fileName, FileMode.OpenOrCreate, FileAccess.Read, store))
                using (var reader = new StreamReader(stream))
                    if (!reader.EndOfStream)
                    {
                        //var serializer = new XmlSerializer(typeof (T));
                        //model = (T) serializer.Deserialize(reader);                       
                        model = JsonSerializer.DeserializeFromReader<T>(reader);
                    }
            }
            finally
            {
                mutexFile.ReleaseMutex();
            }

            return model;
        }

        public static void Write<T>(T data, string fileName, string mutexName)
        {
            var mutexFile = new Mutex(false, mutexName);
            mutexFile.WaitOne();

            try
            {
                using (var store = IsolatedStorageFile.GetUserStoreForApplication())
                using (var stream = new IsolatedStorageFileStream(fileName, FileMode.Create, FileAccess.Write, store))
                {
                    //var serializer = new XmlSerializer(typeof (T));
                    //serializer.Serialize(stream, data);
                    JsonSerializer.SerializeToStream(data, stream);
                }
            }
            finally
            {
                mutexFile.ReleaseMutex();
            }
        }

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