Unity编辑器拓展-写一个查看当前所有PlayerPrefsKey的窗口

效果图

请添加图片描述

前言

PlayerPrefsKey现在其实用得并不多,不过也有一些应用场景。

最近开发过程中,发现要删除一个PlayerPrefsKey,有点麻烦。可以写代码删除 或者 去注册表删除。都是都感觉有点麻烦,而且也没法知道当前已经设置了哪些PlayerPrefsKey。 所以就想做一个窗口来查看当前所有key,并可以支持搜索和删除。

tip:修改功能就不添加了,因为一般删除PlayerPrefsKey让其恢复默认值是安全OK的。但是如果直接不知道它的用处或值域,直接修改,就可能有问题。所以不增加修改功能。

开发

开发分两步:

  1. 第一步获取所有PlayerPrefsKey数据;
  2. 第二步根据数据写编辑器窗口;

一、获取数据

获取数据我是直接在网上搜了一下获取方法,找到了这篇博客,获取所有PlayerPrefsKey windows下测试可以拿到所有key. 获取数据可以直接看这个链接。这里我们主要讲一下编辑器窗口。

目录结构

看文章可以知道需要两个工具类: PlayerPrefsExtension.cs 和 Plist.cs.
目录结构如下,包含上面两个工具类,和窗口编辑器PlayerPrefsWindow。工具类代码会在最后提供
在这里插入图片描述

二、开发编辑器窗口

效果图

请添加图片描述

思路

看效果图,可以知道大体分为两部分:最上面的搜索栏 和 下面的主框体。
怎么实现搜索呢:

  1. 首先,我们可以通过工具类获取到所有的key
  2. 如果搜索框是空的,我们就把所有数据交给主框体渲染;
  3. 如果搜索框有数据,我们就把第一步拿到的数据过滤一下,再交给主框体渲染。这样就可以了。

一、绘制搜索栏

    private void DrawSearchBar()
    {
    
    
        //绘制label:
        GUIStyle labelStyle = new GUIStyle(EditorStyles.boldLabel);
        labelStyle.normal.textColor = Color.cyan;
        EditorGUILayout.LabelField("输入要搜索的key:",labelStyle,GUILayout.Width(120));
        
        //绘制输入框:
        var style = new GUIStyle(EditorStyles.textField);
        style.fontStyle = FontStyle.Bold;
        searchKey = GUILayout.TextField(searchKey,style,GUILayout.ExpandWidth(true));

        //绘制 清空输入 按钮
        if (GUILayout.Button("x",btnWidthOpt))
        {
    
    
            searchKey = string.Empty;
        }

        //绘制 删除所有Key 按钮
        if (GUILayout.Button("删除所有",btnWidthOpt))
        {
    
    
            if (EditorUtility.DisplayDialog("删除提示", "确认删除所有key吗?", "确定", "取消"))
            {
    
    
                PlayerPrefs.DeleteAll();
            };
        }
    }

二、定义PlayerPrefs数据结构体

我们用这个结构体来描述每一个PlayerPrefs

[Serializable]
public struct PlayerPrefPair
{
    public string Key { get; set; }

    public object Value { get; set; }
}

三、根据搜索框过滤数据

searchKey就是搜索框输入的内容,如果有输入,我们就过滤数据

 private void FillDataList(ref List<PlayerPrefPair> list)
    {
    
    
        list.Clear();
        list = PlayerPrefsExtension.GetAll().ToList();
        if (!string.IsNullOrEmpty(searchKey))
        {
    
    
            for (int i = 0; i < list.Count; i++)
            {
    
    
                if (!list[i].Key.ToLower().Contains(searchKey.ToLower()))
                {
    
    
                    list.RemoveAt(i);
                    i--;
                }
            }
        }
    }

四、绘制主框体

因为内容有可能超过窗口,所以这里用了ScrollView,当内容超出时,可以滑动窗口

    private void DrawMainWindow(List<PlayerPrefPair> dataList)
    {
    
    
        Rect rect = new Rect(0,searchBarHeight + 10,position.width,position.height);
        GUILayout.BeginArea(rect);
        scrollViewPos = GUILayout.BeginScrollView(scrollViewPos,false,true,GUILayout.Height(1000));
        GUILayout.BeginVertical();
        foreach (PlayerPrefPair pair in dataList)
        {
    
    
            if (!PlayerPrefs.HasKey(pair.Key))
            {
    
    
                continue;
            }
            
            GUILayout.BeginHorizontal();    
            EditorGUILayout.TextField(pair.Key+":",pair.Value.ToString());
            GUILayout.ExpandWidth(true);
           
            if (GUILayout.Button("删除Key",btnWidthOpt))
            {
    
    
                if (PlayerPrefs.HasKey(pair.Key))
                {
    
    
                    PlayerPrefs.DeleteKey(pair.Key);
                    Debug.Log($"{
      
      GetType()} delete key success,key:{
      
      pair.Key}");
                }
            }
            GUILayout.EndHorizontal();
        }
        GUILayout.EndVertical();
        GUILayout.EndScrollView();
        GUILayout.EndArea();
    }

五、完整代码

PlayerPrefsWindow.cs

using UnityEditor;
using UnityEngine;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using UnityEditor;
using UnityEngine;


[Serializable]
public struct PlayerPrefPair
{
    
    
    public string Key {
    
     get; set; }

    public object Value {
    
     get; set; }
}

public class PlayerPrefsWindow : EditorWindow
{
    
    
    private Vector2 scrollViewPos;


    private string searchKey = string.Empty;
    private List<PlayerPrefPair> dataList = new List<PlayerPrefPair>();
    private float searchBarHeight = 30;
    
    private GUILayoutOption btnWidthOpt = GUILayout.Width(125);
    
    [MenuItem("Tool/PlayerPrefsWindow %q")]
    public static void OpenWindow()
    {
    
    
        PlayerPrefsWindow window = UnityEditor.EditorWindow.GetWindow<PlayerPrefsWindow>();
        window.name = "PlayerPrefs窗口";
    }

    public void OnGUI()
    {
    
    
        GUILayout.BeginVertical();
        Rect rect = new Rect(0, 0, position.width, searchBarHeight);
        GUILayout.BeginArea(rect);
        {
    
    
            GUI.Box(rect,"");
            //搜索
            GUILayout.BeginHorizontal();
            DrawSearchBar();
            GUILayout.EndHorizontal();
        }
        GUILayout.EndArea();
        
        //数据
        FillDataList(ref dataList);
        
        //主框体
        DrawMainWindow(dataList);
        
        GUILayout.EndVertical();
    }


    private void DrawSearchBar()
    {
    
    
        //绘制label:
        GUIStyle labelStyle = new GUIStyle(EditorStyles.boldLabel);
        labelStyle.normal.textColor = Color.cyan;
        EditorGUILayout.LabelField("输入要搜索的key:",labelStyle,GUILayout.Width(120));
        
        //绘制输入框:
        var style = new GUIStyle(EditorStyles.textField);
        style.fontStyle = FontStyle.Bold;
        searchKey = GUILayout.TextField(searchKey,style,GUILayout.ExpandWidth(true));

        //绘制 清空输入 按钮
        if (GUILayout.Button("x",btnWidthOpt))
        {
    
    
            searchKey = string.Empty;
        }

        //绘制 删除所有Key 按钮
        if (GUILayout.Button("删除所有",btnWidthOpt))
        {
    
    
            if (EditorUtility.DisplayDialog("删除提示", "确认删除所有key吗?", "确定", "取消"))
            {
    
    
                PlayerPrefs.DeleteAll();
            };
        }
    }

    private void FillDataList(ref List<PlayerPrefPair> list)
    {
    
    
        list.Clear();
        list = PlayerPrefsExtension.GetAll().ToList();
        if (!string.IsNullOrEmpty(searchKey))
        {
    
    
            for (int i = 0; i < list.Count; i++)
            {
    
    
                if (!list[i].Key.ToLower().Contains(searchKey.ToLower()))
                {
    
    
                    list.RemoveAt(i);
                    i--;
                }
            }
        }
    }
    
    private void DrawMainWindow(List<PlayerPrefPair> dataList)
    {
    
    
        Rect rect = new Rect(0,searchBarHeight + 10,position.width,position.height);
        GUILayout.BeginArea(rect);
        scrollViewPos = GUILayout.BeginScrollView(scrollViewPos,false,true,GUILayout.Height(1000));
        GUILayout.BeginVertical();
        foreach (PlayerPrefPair pair in dataList)
        {
    
    
            if (!PlayerPrefs.HasKey(pair.Key))
            {
    
    
                continue;
            }
            
            GUILayout.BeginHorizontal();    
            EditorGUILayout.TextField(pair.Key+":",pair.Value.ToString());
            GUILayout.ExpandWidth(true);
           
            if (GUILayout.Button("删除Key",btnWidthOpt))
            {
    
    
                if (PlayerPrefs.HasKey(pair.Key))
                {
    
    
                    PlayerPrefs.DeleteKey(pair.Key);
                    Debug.Log($"{
      
      GetType()} delete key success,key:{
      
      pair.Key}");
                }
            }
            GUILayout.EndHorizontal();
        }
        GUILayout.EndVertical();
        GUILayout.EndScrollView();
        GUILayout.EndArea();
    }
}

PlayerPrefsExtension.cs

using UnityEditor;
using UnityEngine;
using System;
using System.Collections.Generic;
using System.IO;
using PlistCS;
using UnityEditor;
using UnityEngine;

   
public static class PlayerPrefsExtension
    {
    
    
        public static PlayerPrefPair[] GetAll()
        {
    
    
            return GetAll(PlayerSettings.companyName, PlayerSettings.productName);
        }

        public static PlayerPrefPair[] GetAll(string companyName, string productName)
        {
    
    
            if (Application.platform == RuntimePlatform.OSXEditor)
            {
    
    
                // From Unity docs: On Mac OS X PlayerPrefs are stored in ~/Library/Preferences folder, in a file named unity.[company name].[product name].plist, where company and product names are the names set up in Project Settings. The same .plist file is used for both Projects run in the Editor and standalone players.

                // Construct the plist filename from the project's settings
                string plistFilename = string.Format("unity.{0}.{1}.plist", companyName, productName);
                // Now construct the fully qualified path
                string playerPrefsPath = Path.Combine(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library/Preferences"),
                    plistFilename);

                // Parse the player prefs file if it exists
                if (File.Exists(playerPrefsPath))
                {
    
    
                    // Parse the plist then cast it to a Dictionary
                    object plist = Plist.readPlist(playerPrefsPath);

                    Dictionary<string, object> parsed = plist as Dictionary<string, object>;

                    // Convert the dictionary data into an array of PlayerPrefPairs
                    PlayerPrefPair[] tempPlayerPrefs = new PlayerPrefPair[parsed.Count];
                    int i = 0;
                    foreach (KeyValuePair<string, object> pair in parsed)
                    {
    
    
                        if (pair.Value.GetType() == typeof(double))
                        {
    
    
                            // Some float values may come back as double, so convert them back to floats
                            tempPlayerPrefs[i] = new PlayerPrefPair() {
    
    Key = pair.Key, Value = (float) (double) pair.Value};
                        }
                        else
                        {
    
    
                            tempPlayerPrefs[i] = new PlayerPrefPair() {
    
    Key = pair.Key, Value = pair.Value};
                        }

                        i++;
                    }

                    // Return the results
                    return tempPlayerPrefs;
                }
                else
                {
    
    
                    // No existing player prefs saved (which is valid), so just return an empty array
                    return new PlayerPrefPair[0];
                }
            }
            else if (Application.platform == RuntimePlatform.WindowsEditor)
            {
    
    
                // From Unity docs: On Windows, PlayerPrefs are stored in the registry under HKCU\Software\[company name]\[product name] key, where company and product names are the names set up in Project Settings.
#if UNITY_5_5_OR_NEWER
                // From Unity 5.5 editor player prefs moved to a specific location
                Microsoft.Win32.RegistryKey registryKey =
                    Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software\\Unity\\UnityEditor\\" + companyName + "\\" + productName);
#else
                Microsoft.Win32.RegistryKey registryKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software\\" + companyName + "\\" + productName);
#endif

                // Parse the registry if the specified registryKey exists
                if (registryKey != null)
                {
    
    
                    // Get an array of what keys (registry value names) are stored
                    string[] valueNames = registryKey.GetValueNames();

                    // Create the array of the right size to take the saved player prefs
                    PlayerPrefPair[] tempPlayerPrefs = new PlayerPrefPair[valueNames.Length];

                    // Parse and convert the registry saved player prefs into our array
                    int i = 0;
                    foreach (string valueName in valueNames)
                    {
    
    
                        string key = valueName;

                        // Remove the _h193410979 style suffix used on player pref keys in Windows registry
                        int index = key.LastIndexOf("_");
                        key = key.Remove(index, key.Length - index);

                        // Get the value from the registry
                        object ambiguousValue = registryKey.GetValue(valueName);

                        // Unfortunately floats will come back as an int (at least on 64 bit) because the float is stored as
                        // 64 bit but marked as 32 bit - which confuses the GetValue() method greatly! 
                        if (ambiguousValue.GetType() == typeof(int))
                        {
    
    
                            // If the player pref is not actually an int then it must be a float, this will evaluate to true
                            // (impossible for it to be 0 and -1 at the same time)
                            if (PlayerPrefs.GetInt(key, -1) == -1 && PlayerPrefs.GetInt(key, 0) == 0)
                            {
    
    
                                // Fetch the float value from PlayerPrefs in memory
                                ambiguousValue = PlayerPrefs.GetFloat(key);
                            }
                        }
                        else if (ambiguousValue.GetType() == typeof(byte[]))
                        {
    
    
                            // On Unity 5 a string may be stored as binary, so convert it back to a string
                            ambiguousValue = System.Text.Encoding.Default.GetString((byte[]) ambiguousValue);
                        }

                        // Assign the key and value into the respective record in our output array
                        tempPlayerPrefs[i] = new PlayerPrefPair() {
    
    Key = key, Value = ambiguousValue};
                        i++;
                    }

                    // Return the results
                    return tempPlayerPrefs;
                }
                else
                {
    
    
                    // No existing player prefs saved (which is valid), so just return an empty array
                    return new PlayerPrefPair[0];
                }
            }
            else
            {
    
    
                throw new NotSupportedException("PlayerPrefsEditor doesn't support this Unity Editor platform");
            }
        }
    }

Plist.cs

//
//   PlistCS Property List (plist) serialization and parsing library.
//
//   https://github.com/animetrics/PlistCS
//   
//   Copyright (c) 2011 Animetrics Inc. ([email protected])
//   
//   Permission is hereby granted, free of charge, to any person obtaining a copy
//   of this software and associated documentation files (the "Software"), to deal
//   in the Software without restriction, including without limitation the rights
//   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//   copies of the Software, and to permit persons to whom the Software is
//   furnished to do so, subject to the following conditions:
//   
//   The above copyright notice and this permission notice shall be included in
//   all copies or substantial portions of the Software.
//   
//   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//   THE SOFTWARE.


using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;

namespace PlistCS
{
    
    
    public static class Plist
    {
    
    
        private static List<int> offsetTable = new List<int>();
        private static List<byte> objectTable = new List<byte>();
        private static int refCount;
        private static int objRefSize;
        private static int offsetByteSize;
        private static long offsetTableOffset;

        #region Public Functions

        public static object readPlist(string path)
        {
    
    
            using (FileStream f = new FileStream(path, FileMode.Open, FileAccess.Read))
            {
    
    
                return readPlist(f, plistType.Auto);
            }
        }

        public static object readPlistSource(string source)
        {
    
    
            return readPlist(System.Text.Encoding.UTF8.GetBytes(source));
        }

        public static object readPlist(byte[] data)
        {
    
    
            return readPlist(new MemoryStream(data), plistType.Auto);
        }

        public static plistType getPlistType(Stream stream)
        {
    
    
            byte[] magicHeader = new byte[8];
            stream.Read(magicHeader, 0, 8);

            if (BitConverter.ToInt64(magicHeader, 0) == 3472403351741427810)
            {
    
    
                return plistType.Binary;
            }
            else
            {
    
    
                return plistType.Xml;
            }
        }

        public static object readPlist(Stream stream, plistType type)
        {
    
    
            if (type == plistType.Auto)
            {
    
    
                type = getPlistType(stream);
                stream.Seek(0, SeekOrigin.Begin);
            }

            if (type == plistType.Binary)
            {
    
    
                using (BinaryReader reader = new BinaryReader(stream))
                {
    
    
                    byte[] data = reader.ReadBytes((int) reader.BaseStream.Length);
                    return readBinary(data);
                }
            }
            else
            {
    
    
                XmlDocument xml = new XmlDocument();
                xml.XmlResolver = null;
                xml.Load(stream);
                return readXml(xml);
            }
        }

        public static void writeXml(object value, string path)
        {
    
    
            using (StreamWriter writer = new StreamWriter(path))
            {
    
    
                writer.Write(writeXml(value));
            }
        }

        public static void writeXml(object value, Stream stream)
        {
    
    
            using (StreamWriter writer = new StreamWriter(stream))
            {
    
    
                writer.Write(writeXml(value));
            }
        }

        public static string writeXml(object value)
        {
    
    
            using (MemoryStream ms = new MemoryStream())
            {
    
    
                XmlWriterSettings xmlWriterSettings = new XmlWriterSettings();
                xmlWriterSettings.Encoding = new System.Text.UTF8Encoding(false);
                xmlWriterSettings.ConformanceLevel = ConformanceLevel.Document;
                xmlWriterSettings.Indent = true;

                using (XmlWriter xmlWriter = XmlWriter.Create(ms, xmlWriterSettings))
                {
    
    
                    xmlWriter.WriteStartDocument(); 
                    //xmlWriter.WriteComment("DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" " + "\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\"");
                    //xmlWriter.WriteDocType("plist", "-//Apple Computer//DTD PLIST 1.0//EN", "http://www.apple.com/DTDs/PropertyList-1.0.dtd", null);
                    xmlWriter.WriteStartElement("plist");
                    xmlWriter.WriteAttributeString("version", "1.0");
                    compose(value, xmlWriter);
                    xmlWriter.WriteEndElement();
                    xmlWriter.WriteEndDocument();
                    xmlWriter.Flush();
                    xmlWriter.Close();
                    return System.Text.Encoding.UTF8.GetString(ms.ToArray());
                }
            }
        }

        public static void writeBinary(object value, string path)
        {
    
    
            using (BinaryWriter writer = new BinaryWriter(new FileStream(path, FileMode.Create)))
            {
    
    
                writer.Write(writeBinary(value));
            }
        }

        public static void writeBinary(object value, Stream stream)
        {
    
    
            using (BinaryWriter writer = new BinaryWriter(stream))
            {
    
    
                writer.Write(writeBinary(value));
            }
        }

        public static byte[] writeBinary(object value)
        {
    
    
            offsetTable.Clear();
            objectTable.Clear();
            refCount = 0;
            objRefSize = 0;
            offsetByteSize = 0;
            offsetTableOffset = 0;

            //Do not count the root node, subtract by 1
            int totalRefs = countObject(value) - 1;

            refCount = totalRefs;

            objRefSize = RegulateNullBytes(BitConverter.GetBytes(refCount)).Length;

            composeBinary(value);

            writeBinaryString("bplist00", false);

            offsetTableOffset = (long)objectTable.Count;

            offsetTable.Add(objectTable.Count - 8);

            offsetByteSize = RegulateNullBytes(BitConverter.GetBytes(offsetTable[offsetTable.Count-1])).Length;

            List<byte> offsetBytes = new List<byte>();

            offsetTable.Reverse();

            for (int i = 0; i < offsetTable.Count; i++)
            {
    
    
                offsetTable[i] = objectTable.Count - offsetTable[i];
                byte[] buffer = RegulateNullBytes(BitConverter.GetBytes(offsetTable[i]), offsetByteSize);
                Array.Reverse(buffer);
                offsetBytes.AddRange(buffer);
            }

            objectTable.AddRange(offsetBytes);

            objectTable.AddRange(new byte[6]);
            objectTable.Add(Convert.ToByte(offsetByteSize));
            objectTable.Add(Convert.ToByte(objRefSize));

            var a = BitConverter.GetBytes((long) totalRefs + 1);
            Array.Reverse(a);
            objectTable.AddRange(a);

            objectTable.AddRange(BitConverter.GetBytes((long)0));
            a = BitConverter.GetBytes(offsetTableOffset);
            Array.Reverse(a);
            objectTable.AddRange(a);

            return objectTable.ToArray();
        }

        #endregion

        #region Private Functions

        private static object readXml(XmlDocument xml)
        {
    
    
            XmlNode rootNode = xml.DocumentElement.ChildNodes[0];
            return parse(rootNode);
        }

        private static object readBinary(byte[] data)
        {
    
    
            offsetTable.Clear();
            List<byte> offsetTableBytes = new List<byte>();
            objectTable.Clear();
            refCount = 0;
            objRefSize = 0;
            offsetByteSize = 0;
            offsetTableOffset = 0;

            List<byte> bList = new List<byte>(data);

            List<byte> trailer = bList.GetRange(bList.Count - 32, 32);

            parseTrailer(trailer);

            objectTable = bList.GetRange(0, (int)offsetTableOffset);

            offsetTableBytes = bList.GetRange((int)offsetTableOffset, bList.Count - (int)offsetTableOffset - 32);

            parseOffsetTable(offsetTableBytes);

            return parseBinary(0);
        }

        private static Dictionary<string, object> parseDictionary(XmlNode node)
        {
    
    
            XmlNodeList children = node.ChildNodes;
            if (children.Count % 2 != 0)
            {
    
    
                throw new DataMisalignedException("Dictionary elements must have an even number of child nodes");
            }

            Dictionary<string, object> dict = new Dictionary<string, object>();

            for (int i = 0; i < children.Count; i += 2)
            {
    
    
                XmlNode keynode = children[i];
                XmlNode valnode = children[i + 1];

                if (keynode.Name != "key")
                {
    
    
                    throw new ApplicationException("expected a key node");
                }

                object result = parse(valnode);

                if (result != null)
                {
    
    
                    dict.Add(keynode.InnerText, result);
                }
            }

            return dict;
        }

        private static List<object> parseArray(XmlNode node)
        {
    
    
            List<object> array = new List<object>();

            foreach (XmlNode child in node.ChildNodes)
            {
    
    
                object result = parse(child);
                if (result != null)
                {
    
    
                    array.Add(result);
                }
            }

            return array;
        }

        private static void composeArray(List<object> value, XmlWriter writer)
        {
    
    
            writer.WriteStartElement("array");
            foreach (object obj in value)
            {
    
    
                compose(obj, writer);
            }
            writer.WriteEndElement();
        }

        private static object parse(XmlNode node)
        {
    
    
            switch (node.Name)
            {
    
    
                case "dict":
                    return parseDictionary(node);
                case "array":
                    return parseArray(node);
                case "string":
                    return node.InnerText;
                case "integer":
                  //  int result;
                    //int.TryParse(node.InnerText, System.Globalization.NumberFormatInfo.InvariantInfo, out result);
                    return Convert.ToInt32(node.InnerText, System.Globalization.NumberFormatInfo.InvariantInfo);
                case "real":
                    return Convert.ToDouble(node.InnerText,System.Globalization.NumberFormatInfo.InvariantInfo);
                case "false":
                    return false;
                case "true":
                    return true;
                case "null":
                    return null;
                case "date":
                    return XmlConvert.ToDateTime(node.InnerText, XmlDateTimeSerializationMode.Utc);
                case "data":
                    return Convert.FromBase64String(node.InnerText);
            }

            throw new ApplicationException(String.Format("Plist Node `{0}' is not supported", node.Name));
        }

        private static void compose(object value, XmlWriter writer)
        {
    
    

            if (value == null || value is string)
            {
    
    
                writer.WriteElementString("string", value as string);
            }
            else if (value is int || value is long)
            {
    
    
                writer.WriteElementString("integer", ((int)value).ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
            }
            else if (value is System.Collections.Generic.Dictionary<string, object> ||
              value.GetType().ToString().StartsWith("System.Collections.Generic.Dictionary`2[System.String"))
            {
    
    
                //Convert to Dictionary<string, object>
                Dictionary<string, object> dic = value as Dictionary<string, object>;
                if (dic == null)
                {
    
    
                    dic = new Dictionary<string, object>();
                    IDictionary idic = (IDictionary)value;
                    foreach (var key in idic.Keys)
                    {
    
    
                        dic.Add(key.ToString(), idic[key]);
                    }
                }
                writeDictionaryValues(dic, writer);
            }
            else if (value is List<object>)
            {
    
    
                composeArray((List<object>)value, writer);
            }
            else if (value is byte[])
            {
    
    
                writer.WriteElementString("data", Convert.ToBase64String((Byte[])value));
            }
            else if (value is float || value is double)
            {
    
    
                writer.WriteElementString("real", ((double)value).ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
            }
            else if (value is DateTime)
            {
    
    
                DateTime time = (DateTime)value;
                string theString = XmlConvert.ToString(time, XmlDateTimeSerializationMode.Utc);
                writer.WriteElementString("date", theString);//, "yyyy-MM-ddTHH:mm:ssZ"));
            }
            else if (value is bool)
            {
    
    
                writer.WriteElementString(value.ToString().ToLower(), "");
            }
            else
            {
    
    
                throw new Exception(String.Format("Value type '{0}' is unhandled", value.GetType().ToString()));
            }
        }

        private static void writeDictionaryValues(Dictionary<string, object> dictionary, XmlWriter writer)
        {
    
    
            writer.WriteStartElement("dict");
            foreach (string key in dictionary.Keys)
            {
    
    
                object value = dictionary[key];
                writer.WriteElementString("key", key);
                compose(value, writer);
            }
            writer.WriteEndElement();
        }

        private static int countObject(object value)
        {
    
    
            int count = 0;
            switch (value.GetType().ToString())
            {
    
    
                case "System.Collections.Generic.Dictionary`2[System.String,System.Object]":
                    Dictionary<string, object> dict = (Dictionary<string, object>)value;
                    foreach (string key in dict.Keys)
                    {
    
    
                        count += countObject(dict[key]);
                    }
                    count += dict.Keys.Count;
                    count++;
                    break;
                case "System.Collections.Generic.List`1[System.Object]":
                    List<object> list = (List<object>)value;
                    foreach (object obj in list)
                    {
    
    
                        count += countObject(obj);
                    }
                    count++;
                    break;
                default:
                    count++;
                    break;
            }
            return count;
        }

        private static byte[] writeBinaryDictionary(Dictionary<string, object> dictionary)
        {
    
    
            List<byte> buffer = new List<byte>();
            List<byte> header = new List<byte>();
            List<int> refs = new List<int>();
            for (int i = dictionary.Count - 1; i >= 0; i--)
            {
    
    
                var o = new object[dictionary.Count];
                dictionary.Values.CopyTo(o, 0);
                composeBinary(o[i]);
                offsetTable.Add(objectTable.Count);
                refs.Add(refCount);
                refCount--;
            }
            for (int i = dictionary.Count - 1; i >= 0; i--)
            {
    
    
                var o = new string[dictionary.Count];
                dictionary.Keys.CopyTo(o, 0);
                composeBinary(o[i]);//);
                offsetTable.Add(objectTable.Count);
                refs.Add(refCount);
                refCount--;
            }

            if (dictionary.Count < 15)
            {
    
    
                header.Add(Convert.ToByte(0xD0 | Convert.ToByte(dictionary.Count)));
            }
            else
            {
    
    
                header.Add(0xD0 | 0xf);
                header.AddRange(writeBinaryInteger(dictionary.Count, false));
            }


            foreach (int val in refs)
            {
    
    
                byte[] refBuffer = RegulateNullBytes(BitConverter.GetBytes(val), objRefSize);
                Array.Reverse(refBuffer);
                buffer.InsertRange(0, refBuffer);
            }

            buffer.InsertRange(0, header);


            objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] composeBinaryArray(List<object> objects)
        {
    
    
            List<byte> buffer = new List<byte>();
            List<byte> header = new List<byte>();
            List<int> refs = new List<int>();

            for (int i = objects.Count - 1; i >= 0; i--)
            {
    
    
                composeBinary(objects[i]);
                offsetTable.Add(objectTable.Count);
                refs.Add(refCount);
                refCount--;
            }

            if (objects.Count < 15)
            {
    
    
                header.Add(Convert.ToByte(0xA0 | Convert.ToByte(objects.Count)));
            }
            else
            {
    
    
                header.Add(0xA0 | 0xf);
                header.AddRange(writeBinaryInteger(objects.Count, false));
            }

            foreach (int val in refs)
            {
    
    
                byte[] refBuffer = RegulateNullBytes(BitConverter.GetBytes(val), objRefSize);
                Array.Reverse(refBuffer);
                buffer.InsertRange(0, refBuffer);
            }

            buffer.InsertRange(0, header);

            objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] composeBinary(object obj)
        {
    
    
            byte[] value;
            switch (obj.GetType().ToString())
            {
    
    
                case "System.Collections.Generic.Dictionary`2[System.String,System.Object]":
                    value = writeBinaryDictionary((Dictionary<string, object>)obj);
                    return value;

                case "System.Collections.Generic.List`1[System.Object]":
                    value = composeBinaryArray((List<object>)obj);
                    return value;

                case "System.Byte[]":
                    value = writeBinaryByteArray((byte[])obj);
                    return value;

                case "System.Double":
                    value = writeBinaryDouble((double)obj);
                    return value;

                case "System.Int32":
                    value = writeBinaryInteger((int)obj, true);
                    return value;

                case "System.String":
                    value = writeBinaryString((string)obj, true);
                    return value;

                case "System.DateTime":
                    value = writeBinaryDate((DateTime)obj);
                    return value;

                case "System.Boolean":
                    value = writeBinaryBool((bool)obj);
                    return value;

                default:
                    return new byte[0];
            }
        }

        public static byte[] writeBinaryDate(DateTime obj)
        {
    
    
            List<byte> buffer =new List<byte>(RegulateNullBytes(BitConverter.GetBytes(PlistDateConverter.ConvertToAppleTimeStamp(obj)), 8));
            buffer.Reverse();
            buffer.Insert(0, 0x33);
            objectTable.InsertRange(0, buffer);
            return buffer.ToArray();
        }

        public static byte[] writeBinaryBool(bool obj)
        {
    
    
            List<byte> buffer = new List<byte>(new byte[1] {
    
     (bool)obj ? (byte)9 : (byte)8 });
            objectTable.InsertRange(0, buffer);
            return buffer.ToArray();
        }

        private static byte[] writeBinaryInteger(int value, bool write)
        {
    
    
            List<byte> buffer = new List<byte>(BitConverter.GetBytes((long) value));
            buffer =new List<byte>(RegulateNullBytes(buffer.ToArray()));
            while (buffer.Count != Math.Pow(2, Math.Log(buffer.Count) / Math.Log(2)))
                buffer.Add(0);
            int header = 0x10 | (int)(Math.Log(buffer.Count) / Math.Log(2));

            buffer.Reverse();

            buffer.Insert(0, Convert.ToByte(header));

            if (write)
                objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] writeBinaryDouble(double value)
        {
    
    
            List<byte> buffer =new List<byte>(RegulateNullBytes(BitConverter.GetBytes(value), 4));
            while (buffer.Count != Math.Pow(2, Math.Log(buffer.Count) / Math.Log(2)))
                buffer.Add(0);
            int header = 0x20 | (int)(Math.Log(buffer.Count) / Math.Log(2));

            buffer.Reverse();

            buffer.Insert(0, Convert.ToByte(header));

            objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] writeBinaryByteArray(byte[] value)
        {
    
    
            List<byte> buffer = new List<byte>(value);
            List<byte> header = new List<byte>();
            if (value.Length < 15)
            {
    
    
                header.Add(Convert.ToByte(0x40 | Convert.ToByte(value.Length)));
            }
            else
            {
    
    
                header.Add(0x40 | 0xf);
                header.AddRange(writeBinaryInteger(buffer.Count, false));
            }

            buffer.InsertRange(0, header);

            objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] writeBinaryString(string value, bool head)
        {
    
    
            List<byte> buffer = new List<byte>();
            List<byte> header = new List<byte>();
            foreach (char chr in value.ToCharArray())
                buffer.Add(Convert.ToByte(chr));

            if (head)
            {
    
    
                if (value.Length < 15)
                {
    
    
                    header.Add(Convert.ToByte(0x50 | Convert.ToByte(value.Length)));
                }
                else
                {
    
    
                    header.Add(0x50 | 0xf);
                    header.AddRange(writeBinaryInteger(buffer.Count, false));
                }
            }

            buffer.InsertRange(0, header);

            objectTable.InsertRange(0, buffer);

            return buffer.ToArray();
        }

        private static byte[] RegulateNullBytes(byte[] value)
        {
    
    
            return RegulateNullBytes(value, 1);
        }

        private static byte[] RegulateNullBytes(byte[] value, int minBytes)
        {
    
    
            Array.Reverse(value);
            List<byte> bytes = new List<byte>(value);
            for (int i = 0; i < bytes.Count; i++)
            {
    
    
                if (bytes[i] == 0 && bytes.Count > minBytes)
                {
    
    
                    bytes.Remove(bytes[i]);
                    i--;
                }
                else
                    break;
            }

            if (bytes.Count < minBytes)
            {
    
    
                int dist = minBytes - bytes.Count;
                for (int i = 0; i < dist; i++)
                    bytes.Insert(0, 0);
            }

            value = bytes.ToArray();
            Array.Reverse(value);
            return value;
        }

        private static void parseTrailer(List<byte> trailer)
        {
    
    
            offsetByteSize = BitConverter.ToInt32(RegulateNullBytes(trailer.GetRange(6, 1).ToArray(), 4), 0);
            objRefSize = BitConverter.ToInt32(RegulateNullBytes(trailer.GetRange(7, 1).ToArray(), 4), 0);
            byte[] refCountBytes = trailer.GetRange(12, 4).ToArray();
            Array.Reverse(refCountBytes);
            refCount = BitConverter.ToInt32(refCountBytes, 0);
            byte[] offsetTableOffsetBytes = trailer.GetRange(24, 8).ToArray();
            Array.Reverse(offsetTableOffsetBytes);
            offsetTableOffset = BitConverter.ToInt64(offsetTableOffsetBytes, 0);
        }

        private static void parseOffsetTable(List<byte> offsetTableBytes)
        {
    
    
            for (int i = 0; i < offsetTableBytes.Count; i += offsetByteSize)
            {
    
    
                byte[] buffer = offsetTableBytes.GetRange(i, offsetByteSize).ToArray();
                Array.Reverse(buffer);
                offsetTable.Add(BitConverter.ToInt32(RegulateNullBytes(buffer, 4), 0));
            }
        }

        private static object parseBinaryDictionary(int objRef)
        {
    
    
            Dictionary<string, object> buffer = new Dictionary<string, object>();
            List<int> refs = new List<int>();
            int refCount = 0;

            int refStartPosition;
            refCount = getCount(offsetTable[objRef], out refStartPosition);


            if (refCount < 15)
                refStartPosition = offsetTable[objRef] + 1;
            else
                refStartPosition = offsetTable[objRef] + 2 + RegulateNullBytes(BitConverter.GetBytes(refCount), 1).Length;

            for (int i = refStartPosition; i < refStartPosition + refCount * 2 * objRefSize; i += objRefSize)
            {
    
    
                byte[] refBuffer = objectTable.GetRange(i, objRefSize).ToArray();
                Array.Reverse(refBuffer);
                refs.Add(BitConverter.ToInt32(RegulateNullBytes(refBuffer, 4), 0));
            }

            for (int i = 0; i < refCount; i++)
            {
    
    
                buffer.Add((string)parseBinary(refs[i]), parseBinary(refs[i + refCount]));
            }

            return buffer;
        }

        private static object parseBinaryArray(int objRef)
        {
    
    
            List<object> buffer = new List<object>();
            List<int> refs = new List<int>();
            int refCount = 0;

            int refStartPosition;
            refCount = getCount(offsetTable[objRef], out refStartPosition);


            if (refCount < 15)
                refStartPosition = offsetTable[objRef] + 1;
            else
                //The following integer has a header aswell so we increase the refStartPosition by two to account for that.
                refStartPosition = offsetTable[objRef] + 2 + RegulateNullBytes(BitConverter.GetBytes(refCount), 1).Length;

            for (int i = refStartPosition; i < refStartPosition + refCount * objRefSize; i += objRefSize)
            {
    
    
                byte[] refBuffer = objectTable.GetRange(i, objRefSize).ToArray();
                Array.Reverse(refBuffer);
                refs.Add(BitConverter.ToInt32(RegulateNullBytes(refBuffer, 4), 0));
            }

            for (int i = 0; i < refCount; i++)
            {
    
    
                buffer.Add(parseBinary(refs[i]));
            }

            return buffer;
        }

        private static int getCount(int bytePosition, out int newBytePosition)
        {
    
    
            byte headerByte = objectTable[bytePosition];
            byte headerByteTrail = Convert.ToByte(headerByte & 0xf);
            int count;
            if (headerByteTrail < 15)
            {
    
    
                count = headerByteTrail;
                newBytePosition = bytePosition + 1;
            }
            else
                count = (int)parseBinaryInt(bytePosition + 1, out newBytePosition);
            return count;
        }

        private static object parseBinary(int objRef)
        {
    
    
            byte header = objectTable[offsetTable[objRef]];
            switch (header & 0xF0)
            {
    
    
                case 0:
                    {
    
    
                        //If the byte is
                        //0 return null
                        //9 return true
                        //8 return false
                        return (objectTable[offsetTable[objRef]] == 0) ? (object)null : ((objectTable[offsetTable[objRef]] == 9) ? true : false);
                    }
                case 0x10:
                    {
    
    
                        return parseBinaryInt(offsetTable[objRef]);
                    }
                case 0x20:
                    {
    
    
                        return parseBinaryReal(offsetTable[objRef]);
                    }
                case 0x30:
                    {
    
    
                        return parseBinaryDate(offsetTable[objRef]);
                    }
                case 0x40:
                    {
    
    
                        return parseBinaryByteArray(offsetTable[objRef]);
                    }
                case 0x50://String ASCII
                    {
    
    
                        return parseBinaryAsciiString(offsetTable[objRef]);
                    }
                case 0x60://String Unicode
                    {
    
    
                        return parseBinaryUnicodeString(offsetTable[objRef]);
                    }
                case 0xD0:
                    {
    
    
                        return parseBinaryDictionary(objRef);
                    }
                case 0xA0:
                    {
    
    
                        return parseBinaryArray(objRef);
                    }
            }
            throw new Exception("This type is not supported");
        }

        public static object parseBinaryDate(int headerPosition)
        {
    
    
            byte[] buffer = objectTable.GetRange(headerPosition + 1, 8).ToArray();
            Array.Reverse(buffer);
            double appleTime = BitConverter.ToDouble(buffer, 0);
            DateTime result = PlistDateConverter.ConvertFromAppleTimeStamp(appleTime);
            return result;
        }
        
        private static object parseBinaryInt(int headerPosition)
        {
    
    
            int output;
            return parseBinaryInt(headerPosition, out output);
        }

        private static object parseBinaryInt(int headerPosition, out int newHeaderPosition)
        {
    
    
            byte header = objectTable[headerPosition];
            int byteCount = (int)Math.Pow(2, header & 0xf);
            byte[] buffer = objectTable.GetRange(headerPosition + 1, byteCount).ToArray();
            Array.Reverse(buffer);
            //Add one to account for the header byte
            newHeaderPosition = headerPosition + byteCount + 1;
            return BitConverter.ToInt32(RegulateNullBytes(buffer, 4), 0);
        }

        private static object parseBinaryReal(int headerPosition)
        {
    
    
            byte header = objectTable[headerPosition];
            int byteCount = (int)Math.Pow(2, header & 0xf);
            byte[] buffer = objectTable.GetRange(headerPosition + 1, byteCount).ToArray();
            Array.Reverse(buffer);

            return BitConverter.ToDouble(RegulateNullBytes(buffer, 8), 0);
        }

        private static object parseBinaryAsciiString(int headerPosition)
        {
    
    
            int charStartPosition;
            int charCount = getCount(headerPosition, out charStartPosition);

            var buffer = objectTable.GetRange(charStartPosition, charCount);
            return buffer.Count > 0 ? Encoding.ASCII.GetString(buffer.ToArray()) : string.Empty;
        }

        private static object parseBinaryUnicodeString(int headerPosition)
        {
    
    
            int charStartPosition;
            int charCount = getCount(headerPosition, out charStartPosition);
            charCount = charCount * 2;

            byte[] buffer = new byte[charCount];
            byte one, two;

            for (int i = 0; i < charCount; i+=2)
            {
    
    
                one = objectTable.GetRange(charStartPosition+i,1)[0];
                two = objectTable.GetRange(charStartPosition + i+1, 1)[0];

                if (BitConverter.IsLittleEndian)
                {
    
    
                    buffer[i] = two;
                    buffer[i + 1] = one;
                }
                else
                {
    
    
                    buffer[i] = one;
                    buffer[i + 1] = two;
                }
            }

            return Encoding.Unicode.GetString(buffer);
        }

        private static object parseBinaryByteArray(int headerPosition)
        {
    
    
            int byteStartPosition;
            int byteCount = getCount(headerPosition, out byteStartPosition);
            return objectTable.GetRange(byteStartPosition, byteCount).ToArray();
        }

        #endregion
    }
    
    public enum plistType
    {
    
    
        Auto, Binary, Xml
    }

    public static class PlistDateConverter
    {
    
    
        public static long timeDifference = 978307200;

        public static long GetAppleTime(long unixTime)
        {
    
    
            return unixTime - timeDifference;
        }

        public static long GetUnixTime(long appleTime)
        {
    
    
            return appleTime + timeDifference;
        }

        public static DateTime ConvertFromAppleTimeStamp(double timestamp)
        {
    
    
            DateTime origin = new DateTime(2001, 1, 1, 0, 0, 0, 0);
            return origin.AddSeconds(timestamp);
        }

        public static double ConvertToAppleTimeStamp(DateTime date)
        {
    
    
            DateTime begin = new DateTime(2001, 1, 1, 0, 0, 0, 0);
            TimeSpan diff = date - begin;
            return Math.Floor(diff.TotalSeconds);
        }
    }
}

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转载自blog.csdn.net/aaa27987/article/details/120308779