Question

我想知道是否有类似的解决方案将所有类型的数据保存到文件中，就像在iOS中使用plist文件一样？

将数据加载到NSArray

[NSMutableArray arrayWithArray:[[NSArray alloc] initWithContentsOfFile:pathToFile]]

将数据写入文件

[NSArray writeToFile:destPath atomically:YES];

我知道有类似于[NSUserDefaults standardUserDefaults]的内容，它是IsolatedStorageSettings.ApplicationSettings

任何帮助都会受到赞赏。

解决

In this question我已经使用了1个Soonts方法。

Answer 1

有很多解决方案。

[内置]数据契约序列化程序，用于text / xml或MS二进制XML（后者更有效）
[内置] XML序列化程序。
[内置] BinaryWriter / BinaryReader。
[内置或第三方] JSON序列化程序。
[第3方] Google协议缓冲区。

对于不同的要求，我更喜欢1和5。

更新：这是实施＃1的示例代码。代码已经过测试，但仍有一些改进空间。

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization;
using System.Xml;

namespace NS
{
    /// <summary>This static class handles data serialization for the app.</summary>
    /// <remarks>
    /// <para>The serialization format is Microsoft's .NET binary XML, documented in [MC-NBFX] specification.</para>
    /// <para>The efficiency could be improved further, by providing a pre-built XML dictionary.</para>
    /// </remarks>
    internal static class Serializer
    {
        /// <summary>Serializers are cached here</summary>
        static readonly Dictionary<Type, DataContractSerializer> s_serializers = new Dictionary<Type, DataContractSerializer>();

        /// <summary>Either get the serializer from cache, or create a new one for the type</summary>
        /// <param name="tp"></param>
        /// <returns></returns>
        private static DataContractSerializer getSerializer( Type tp )
        {
            DataContractSerializer res = null;
            if( s_serializers.TryGetValue( tp, out res ) )
                return res;

            lock( s_serializers )
            {
                if( s_serializers.TryGetValue( tp, out res ) )
                    return res;
                res = new DataContractSerializer( tp );
                s_serializers.Add( tp, res );
                return res;
            }
        }

        /// <summary>Read deserialized object from the stream.</summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="stm"></param>
        /// <returns></returns>
        public static T readObject<T>( Stream stm ) where T: class
        {
            DataContractSerializer ser = getSerializer( typeof( T ) );
            using( var br = XmlDictionaryReader.CreateBinaryReader( stm, XmlDictionaryReaderQuotas.Max ) )
                return (T)ser.ReadObject( br );
        }

        /// <summary>Write serialized object to the stream.</summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="stm"></param>
        /// <param name="obj"></param>
        public static void writeObject<T>( Stream stm, T obj ) where T: class
        {
            DataContractSerializer ser = getSerializer( typeof( T ) );
            using( XmlDictionaryWriter bw = XmlDictionaryWriter.CreateBinaryWriter( stm, null, null, false ) )
            {
                ser.WriteObject( bw, obj );
                bw.Flush();
            }
            stm.Flush();
        }
    }
}

Answer 2

我写了article about various ways of saving data in Windows Phone applications可能会有所帮助。我在许多应用程序中都使用了JSON和隔离存储文件，那里有一些示例代码。

iOS for Windows Phone 8中的plist文件

解决

2 个答案: