unity拉取安卓苹果相册的插件

此代码，是unity拉取安卓苹果的插件，里面集成了安卓和ios的所有功能，直接用里面的代码也可以，也可以自己重写方法，按自己的需求来。有不懂的尽管提问

using UnityEngine;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;
using System.Diagnostics;
using System.IO;
using Debug = UnityEngine.Debug;

namespace Kakera.Unimgpicker
{
    public class XcodeProjectConfigurator
    {
        [PostProcessBuild]
        static void OnPostprocessBuild（BuildTarget buildTarget string buildPath）
        {
            if （buildTarget != BuildTarget.iOS）
                return;

            ConfigurePlist（buildPath “Info.plist“）;
        }

        static void ConfigurePlist（string buildPath string plistPath）
        {
            var plist = new PlistDocument（）;
            var path = Path.Combine（buildPath plistPath）;

            plist.ReadFromFile（path）;

            var descriptionFilePath = Path.Combine（Application.dataPath “Unimgpicker/Editor/NSPhotoLibraryUsageDescription.txt“）;
            if （!File.Exists（descriptionFilePath））
            {
                Debug.LogError（string.Format（“[Unimgpicker]:File {0} is not found.“ descriptionFilePath））;
                return;
            }

            var description = File.ReadAllText（descriptionFilePath）;

            plist.root.SetString（“NSPhotoLibraryUsageDescription“ description）;
            Debug.Log（string.Format（“[Unimgpicker]:Set NSPhotoLibraryUsageDescription as \“{0}\““ description））;

            plist.WriteToFile（path）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-03-19 23:05  unimgpicker-master\
     文件         547  2018-03-19 23:05  unimgpicker-master\.gitignore
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Plugins.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\
     文件         409  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\
     文件         195  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\AndroidManifest.xml
     文件         177  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\AndroidManifest.xml.meta
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\libs.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\libs\
     文件        3999  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\libs\unimgpicker.jar
     文件         174  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\libs\unimgpicker.jar.meta
     文件          21  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\project.properties
     文件         174  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\Android\Unimgpicker\project.properties.meta
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker\
     文件         491  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker\Picker.h
     文件         437  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker\Picker.h.meta
     文件        3725  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker\Picker.mm
     文件         437  2018-03-19 23:05  unimgpicker-master\Assets\Plugins\iOS\Unimgpicker\Picker.mm.meta
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker\
     文件         191  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker\Editor.meta
     目录           0  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker\Editor\
     文件          37  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker\Editor\NSPhotoLibraryUsageDescription.txt
     文件         177  2018-03-19 23:05  unimgpicker-master\Assets\Unimgpicker\Editor\NSPhotoLibraryUsageDescription.txt.meta
............此处省略139个文件信息