Ios 保存和加载游戏数据不起作用

我不知道为什么我的代码不起作用，因为我遵循了我找到的示例。试图让我的iOS游戏使用Unity3D保存并加载数据，但不使用player.prefs

在现场我有这个

void OnDisable(){
    GameController.Save ();
}

void OnEable(){
    GameController.Load ();
}

游戏控制器是一种静态方法

static public void Save()
    {
        Debug.Log("Saving Player Data...");
        print ("Saving Player Data...");
        var bf = new BinaryFormatter();
        var file = File.Create(Application.persistentDataPath + "/CatEscapeInfo.dat");

        var data = new PlayerData
        {
            PlayerLives = PlayerLives,
            Score = Score,
            Distance = Distance,
            CurrentLevelNo = CurrentLevelNo,
            HighestLevelCompleted = HighestLevelCompleted
        };

        bf.Serialize(file, data);
        file.Close();
        //PlayerPrefs.SetString (data);
        Debug.Log ("Player Data Saved: " + PlayerLives + ", " + Score);
        print ("Player Data Saved: " + PlayerLives + ", " + Score);
    }

    static public void Load()
    {
        Debug.Log("Loading Player Data...");
        if (File.Exists(Application.persistentDataPath + "/CatEscapeInfo.dat"))
        {
            var bf = new BinaryFormatter();
            var file = File.Open(Application.persistentDataPath + "/CatEscapeInfo.dat", FileMode.Open);
            var data = bf.Deserialize(file) as PlayerData;
            file.Close();

            Debug.Log("Player Data Loaded: " + data.PlayerLives + ", " + data.Score);
            print ("Player Data Loaded: " + data.PlayerLives + ", " + data.Score);

            if (data != null)
            {
                PlayerLives = data.PlayerLives;
                Score = data.Score;
                Distance = data.Distance;
                CurrentLevelNo = data.CurrentLevelNo;
                HighestLevelCompleted = data.HighestLevelCompleted;
            }
        }
    }

即使我运行了这段代码，当我在iOS上手动关闭游戏并将其恢复时，它也不会将游戏加载回它拥有的统计数据。 有什么想法吗？我错过什么了吗

更新： 在iOSXcode中，我发现它在尝试“加载”时会抛出这个堆栈跟踪，尽管此时文件还不存在

加载时这是堆栈跟踪：

> (Filename:
> /Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
> Line: 49)
> 
> SerializationException: Unexpected binary element: 255   at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject
> (BinaryElement element, System.IO.BinaryReader reader, System.Int64&
> objectId, System.Object& value,
> System.Runtime.Serialization.SerializationInfo& info) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject
> (BinaryElement element, System.IO.BinaryReader reader) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph
> (BinaryElement elem, System.IO.BinaryReader reader, Boolean
> readHeaders, System.Object& result,
> System.Runtime.Remoting.Messaging.Header[]& headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize
> (System.IO.Stream serializationStream,
> System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize
> (System.IO.Stream serializationStream) [0x00000] in <filename
> unknown>:0    at GameController.Load () [0x00000] in <filename
> unknown>:0    at GameController.OnEnable () [0x00000] in <filename
> unknown>:0    (Filename:  Line: -1)

> Saving Player Data... UnityEngine.Debug:Internal_Log(Int32, String,
> Object) UnityEngine.Debug:Log(Object)
> UnityEngine.MonoBehaviour:print(Object) GameController:Save()
> GameController:OnDisable() UnityEngine.Object:Destroy(Object, Single)
> UnityEngine.Object:Destroy(Object) GameController:Awake()   (Filename:
> /Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
> Line: 49)
> 
> ExecutionEngineException: Attempting to JIT compile method
> 'PlayerData__TypeMetadata4:.ctor ()' while running with --aot-only.
> 
>   at System.Reflection.MonoCMethod.Invoke (System.Object obj,
> BindingFlags invokeAttr, System.Reflection.Binder binder,
> System.Object[] parameters, System.Globalization.CultureInfo culture)
> [0x00000] in <filename unknown>:0  Rethrow as
> TargetInvocationException: Exception has been thrown by the target of
> an invocation.   at System.Reflection.MonoCMethod.Invoke
> (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder
> binder, System.Object[] parameters, System.Globalization.CultureInfo
> culture) [0x00000] in <filename unknown>:0    at
> System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr,
> System.Reflection.Binder binder, System.Object[] parameters,
> System.Globalization.CultureInfo culture) [0x00000] in <filename
> unknown>:0    at System.Reflection.ConstructorInfo.Invoke
> (System.Object[] parameters) [0x00000] in <filename unknown>:0    at
> System.Activator.CreateInstance (System.Type type, Boolean nonPublic)
> [0x00000] in <filename unknown>:0    at
> System.Activator.CreateInstance (System.Type type) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.CreateMemberTypeMetadata
> (System.Type type) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.GetObjectData
> (System.Object obj,
> System.Runtime.Serialization.Formatters.Binary.TypeMetadata& metadata,
> System.Object& data) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObject
> (System.IO.BinaryWriter writer, Int64 id, System.Object obj) [0x00000]
> in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectInstance
> (System.IO.BinaryWriter writer, System.Object obj, Boolean
> isValueObject) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteQueuedObjects
> (System.IO.BinaryWriter writer) [0x00000] in <filename unknown>:0   
> at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectGraph
> (System.IO.BinaryWriter writer, System.Object obj,
> System.Runtime.Remoting.Messaging.Header[] headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize
> (System.IO.Stream serializationStream, System.Object graph,
> System.Runtime.Remoting.Messaging.Header[] headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize
> (System.IO.Stream serializationStream, System.Object graph) [0x00000]
> in <filename unknown>:0    at GameController.Save () [0x00000] in
> <filename unknown>:0    at GameController.OnDisable () [0x00000] in
> <filename unknown>:0  UnityEngine.Object:Destroy(Object, Single)
> UnityEngine.Object:Destroy(Object) GameController:Awake()

>（文件名：
>/Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
>第49行）
> 
>SerializationException:意外的二进制元素：255处
>System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject
>（BinaryElement元素，System.IO.BinaryReader阅读器，System.Int64&
>objectId、系统、对象和值，
>中的System.Runtime.Serialization.SerializationInfo&info）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject
>（二进制元素，System.IO.BinaryReader读取器）[0x00000]位于
>：0 at
>System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph
>（BinaryElement元素，System.IO.BinaryReader读取器，布尔值
>ReadHeader、System.Object和result、，
>中的System.Runtime.Remoting.Messaging.Header[]和headers）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize
>（System.IO.Stream序列化流，
>中的System.Runtime.Remoting.Messaging.HeaderHandler处理程序）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize
>（System.IO.Stream serializationStream）[0x00000]在未知>:0在GameController.Load（）[0x00000]在未知>:0在GameController.oneable（）[0x00000]在未知>:0（文件名：行：-1）

保存时，这是堆栈跟踪：

> (Filename:
> /Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
> Line: 49)
> 
> SerializationException: Unexpected binary element: 255   at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject
> (BinaryElement element, System.IO.BinaryReader reader, System.Int64&
> objectId, System.Object& value,
> System.Runtime.Serialization.SerializationInfo& info) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject
> (BinaryElement element, System.IO.BinaryReader reader) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph
> (BinaryElement elem, System.IO.BinaryReader reader, Boolean
> readHeaders, System.Object& result,
> System.Runtime.Remoting.Messaging.Header[]& headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize
> (System.IO.Stream serializationStream,
> System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize
> (System.IO.Stream serializationStream) [0x00000] in <filename
> unknown>:0    at GameController.Load () [0x00000] in <filename
> unknown>:0    at GameController.OnEnable () [0x00000] in <filename
> unknown>:0    (Filename:  Line: -1)

> Saving Player Data... UnityEngine.Debug:Internal_Log(Int32, String,
> Object) UnityEngine.Debug:Log(Object)
> UnityEngine.MonoBehaviour:print(Object) GameController:Save()
> GameController:OnDisable() UnityEngine.Object:Destroy(Object, Single)
> UnityEngine.Object:Destroy(Object) GameController:Awake()   (Filename:
> /Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
> Line: 49)
> 
> ExecutionEngineException: Attempting to JIT compile method
> 'PlayerData__TypeMetadata4:.ctor ()' while running with --aot-only.
> 
>   at System.Reflection.MonoCMethod.Invoke (System.Object obj,
> BindingFlags invokeAttr, System.Reflection.Binder binder,
> System.Object[] parameters, System.Globalization.CultureInfo culture)
> [0x00000] in <filename unknown>:0  Rethrow as
> TargetInvocationException: Exception has been thrown by the target of
> an invocation.   at System.Reflection.MonoCMethod.Invoke
> (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder
> binder, System.Object[] parameters, System.Globalization.CultureInfo
> culture) [0x00000] in <filename unknown>:0    at
> System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr,
> System.Reflection.Binder binder, System.Object[] parameters,
> System.Globalization.CultureInfo culture) [0x00000] in <filename
> unknown>:0    at System.Reflection.ConstructorInfo.Invoke
> (System.Object[] parameters) [0x00000] in <filename unknown>:0    at
> System.Activator.CreateInstance (System.Type type, Boolean nonPublic)
> [0x00000] in <filename unknown>:0    at
> System.Activator.CreateInstance (System.Type type) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.CreateMemberTypeMetadata
> (System.Type type) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.GetObjectData
> (System.Object obj,
> System.Runtime.Serialization.Formatters.Binary.TypeMetadata& metadata,
> System.Object& data) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObject
> (System.IO.BinaryWriter writer, Int64 id, System.Object obj) [0x00000]
> in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectInstance
> (System.IO.BinaryWriter writer, System.Object obj, Boolean
> isValueObject) [0x00000] in <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteQueuedObjects
> (System.IO.BinaryWriter writer) [0x00000] in <filename unknown>:0   
> at
> System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectGraph
> (System.IO.BinaryWriter writer, System.Object obj,
> System.Runtime.Remoting.Messaging.Header[] headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize
> (System.IO.Stream serializationStream, System.Object graph,
> System.Runtime.Remoting.Messaging.Header[] headers) [0x00000] in
> <filename unknown>:0    at
> System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize
> (System.IO.Stream serializationStream, System.Object graph) [0x00000]
> in <filename unknown>:0    at GameController.Save () [0x00000] in
> <filename unknown>:0    at GameController.OnDisable () [0x00000] in
> <filename unknown>:0  UnityEngine.Object:Destroy(Object, Single)
> UnityEngine.Object:Destroy(Object) GameController:Awake()

>正在保存播放器数据。。。调试：内部日志（Int32，字符串，
>调试：日志（对象）
>monobhavior:print（Object）GameController:Save（）
>GameController:OnDisable（）UnityEngine.Object:Destroy（对象，单个）
>UnityEngine.Object:Destroy（Object）GameController:Awake（）（文件名：
>/Applications/buildAgent/work/d63dfc6385190b60/artifacts/iPhonePlayer-armv7Generated/UnityEngineDebug.cpp
>第49行）
> 
>ExecutionEngineeException:正在尝试JIT编译方法
>“PlayerData_u_TypeMetadata4:.ctor（）”同时仅使用--aot运行。
> 
>在System.Reflection.Method.Invoke（System.Object obj，
>BindingFlags invokeAttr，System.Reflection.Binder Binder，
>System.Object[]参数，System.Globalization.CultureInfo区域性）
>[0x00000]in:0将重新显示为
>TargetInvocationException:的目标已引发异常
>召唤。在System.Reflection.Method.Invoke
>（System.Object obj、BindingFlags invokeAttr、System.Reflection.Binder
>binder，System.Object[]参数，System.Globalization.CultureInfo
>区域性）[0x00000]位于：0处
>System.Reflection.MonoCMethod.Invoke（BindingFlags invokeAttr，
>System.Reflection.Binder，System.Object[]参数，
>System.Globalization.CultureInfo区域性）[0x00000]在未知>：0位于System.Reflection.ConstructorInfo.Invoke
>（System.Object[]参数）[0x00000]位于：0处
>System.Activator.CreateInstance（System.Type类型，布尔非公共）
>[0x00000]英寸：0英寸
>中的System.Activator.CreateInstance（System.Type类型）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.CreateMemberTypeMetadata
>（System.Type类型）[0x00000]位于：0处
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.GetObjectData
>（System.Object obj，
>System.Runtime.Serialization.Formatters.Binary.TypeMetadata和metadata，
>系统对象和数据）[0x00000]位于：0处
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObject
>（System.IO.BinaryWriter编写器，Int64 id，System.Object obj）[0x00000]
>in:0 at
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectInstance
>（System.IO.BinaryWriter编写器，System.Object对象，布尔值
>isValueObject）[0x00000]位于：0处
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteQueueObjects
>（System.IO.BinaryWriter写入程序）[0x00000]位于：0
>在
>System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectGraph
>（System.IO.BinaryWriter编写器，System.Object对象，
>中的System.Runtime.Remoting.Messaging.Header[]headers）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serializate
>（System.IO.Stream序列化流、System.Object图、，
>中的System.Runtime.Remoting.Messaging.Header[]headers）[0x00000]
>：0 at
>System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serializate
>（System.IO.Stream序列化流，System.Object图）[0x00000]
>中：0位于GameController.Save（）[0x00000]中
>：0位于中的GameController.OnDisable（）[0x00000]
>：0 UnityEngine.对象：销毁（对象，单个）
>对象：销毁（对象）游戏控制器：唤醒（）

在场景脚本中将此代码置于

唤醒

或

启动

功能：

//在BinaryFormatter中强制使用不同的代码路径，该路径不依赖于运行时代码生成（在iOS上会中断）。
SetEnvironmentVariable（“MONO_REFLECTION_SERIALIZER”，“yes”）；

默认情况下，单二进制序列化程序使用iOS不支持的JIT编译。幸运的是，有一种方法（上面的代码）可以将其切换为使用反射

证明/另见：

在Unity编辑器中创建错误，如：

在命名空间中找不到“环境”

几个小时的睡眠后