├── README.md
└── FindUnUnUsedUITexture.cs


/README.md:
--------------------------------------------------------------------------------
 1 | # FindUnUsedUITexture
 2 | Unity Script To Find Unused UI Texture which include tag , png and jpg
 3 | 
 4 | #usage:
 5 | 1.Copy FindUnUsedUITexture.cs to you editor directory.
 6 | 
 7 | 2.Click the menu item "Tools/UI冗余图片扫描".
 8 | 
 9 | 3.Any unused ui texutre will be list in Assets/unsedpic.txt
10 | 


--------------------------------------------------------------------------------
/FindUnUnUsedUITexture.cs:
--------------------------------------------------------------------------------
  1 | using UnityEngine;
  2 | using UnityEditor;
  3 | 
  4 | using System.IO;
  5 | using System.Linq;
  6 | using System.Text.RegularExpressions;
  7 | using System.Collections.Generic;
  8 | using System.Text;
  9 | using System;
 10 | 
 11 | public static class LinqHelper {
 12 |     public static TSource Fold<TSource>(this IEnumerable<TSource> source, Func<TSource, TSource, TSource> func, TSource id)
 13 |     {
 14 |         TSource r = id;
 15 |         foreach (var s in source)
 16 |         {
 17 |             r = func(r, s);
 18 |         }
 19 |         return r;
 20 |     }
 21 |     public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
 22 |     {
 23 |         foreach (T element in source)
 24 |             action(element);
 25 |     }
 26 |     public static IEnumerable<U> SelectI<U, T>(this IEnumerable<T> source, Func<T, int, U> action)
 27 |     {
 28 |         int i = 0;
 29 |         foreach (var s in source)
 30 |         {
 31 |             yield return action(s, i);
 32 |             i += 1;
 33 |         }
 34 |     }
 35 |     public static TSource Reduce<TSource>(this IEnumerable<TSource> source, Func<TSource, TSource, TSource> func) where TSource : new()
 36 |     {
 37 |         return Fold<TSource>(source, func, new TSource());
 38 |     }
 39 |     public static void ForEachI<T>(this IEnumerable<T> source, Action<T, int> action)
 40 |     {
 41 |         int i = 0;
 42 |         foreach (T element in source)
 43 |         {
 44 |             action(element, i);
 45 |             i += 1;
 46 |         }
 47 | 
 48 |     }
 49 | }
 50 | public static class FindUnUnUsedUITexture
 51 | {
 52 | 
 53 | 
 54 |     static List<string> getUUIDsInFile(string path)
 55 |     {
 56 |         StreamReader file = new StreamReader(path);
 57 |         List<string> uuids = new List<string>();
 58 |         string line;
 59 |         while ((line = file.ReadLine()) != null)
 60 |         {
 61 |             var reg = new Regex(@"([a-f0-9]{32})");
 62 |             var m = reg.Match(line);
 63 |             if (m.Success)
 64 |             {
 65 |                 uuids.Add(m.Groups[0].Value);
 66 |             }
 67 |         }
 68 |         file.Close();
 69 |         return uuids;
 70 |     }
 71 |     // Use this for initialization
 72 |     [MenuItem("Tools/UI冗余图片扫描")]
 73 |     public static void Scan()
 74 |     {
 75 | 
 76 |         var uiPrefabRootDir = EditorUtility.OpenFolderPanel("选择UIPrefab目录",  "Assets","");
 77 |         if (string.IsNullOrEmpty(uiPrefabRootDir))
 78 |         {
 79 |             return;
 80 |         }
 81 | 
 82 |         var uiPicRootDir = EditorUtility.OpenFolderPanel("选择UIPrefab目录", "Assets", "");
 83 |         if (string.IsNullOrEmpty(uiPicRootDir))
 84 |         {
 85 |             return;
 86 |         }
 87 |         
 88 |         //find all meta and pic path
 89 |         var uuidReg = new Regex(@"guid: ([a-f0-9]{32})");
 90 |         var pngs = Directory.GetFiles(uiPicRootDir, "*.meta", SearchOption.AllDirectories)
 91 |         .Select(p => "Assets/" + p.Replace('\\','/').Substring(Application.dataPath.Length+1))
 92 |         .Where(p =>
 93 |         {
 94 |             return p.EndsWith(".png.meta") || p.EndsWith(".jpg.meta") || p.EndsWith(".tag.meta");
 95 |         }).ToList();
 96 |         var uuid2path = new Dictionary<string, string>();
 97 |         pngs.ForEachI((png, i) =>
 98 |         {
 99 |             var matcher = uuidReg.Match(File.ReadAllText(png));
100 |             var uuid = matcher.Groups[1].Value;
101 |             if (uuid2path.ContainsKey(uuid))
102 |             {
103 |                 Debug.LogError("uuid dup" + uuid + " \n" + png + "\n" + uuid2path[uuid]);
104 |             }
105 |             else
106 |             {
107 |                 uuid2path.Add(uuid, png.Substring(0,png.Length-5));
108 |             }
109 |             EditorUtility.DisplayProgressBar("扫描图片中", png, (float)i / pngs.Count);
110 | 
111 |         });
112 | 
113 |         //find all prefab and search pic uuid
114 |         var prefabs = Directory.GetFiles(uiPrefabRootDir, "*.prefab", SearchOption.AllDirectories);
115 |         var anims = Directory.GetFiles("Assets/", "*.anim", SearchOption.AllDirectories).Where(p => !p.Replace('\\', '/').Contains("Characters/"));
116 |         var allFiles = prefabs.Concat(anims).ToList();
117 |         var alluuids = allFiles
118 |         .SelectI((f, i) => {
119 |             EditorUtility.DisplayProgressBar("获取引用关系", f, (float)i / allFiles.Count);
120 |             return getUUIDsInFile(f);
121 |         }).ToList().Aggregate((a, b) => a.Concat(b).ToList()).ToList();
122 |         EditorUtility.ClearProgressBar();
123 |         //rm used pic uuid
124 |         var uuidshashset = new HashSet<string>(alluuids);
125 |         var em = uuidshashset.GetEnumerator();
126 |         while(em.MoveNext())
127 |         {
128 |             var uuid = em.Current;
129 |             uuid2path.Remove(uuid);
130 |         }
131 | 
132 |         StringBuilder sb = new StringBuilder();
133 |         sb.Append("UnUsedFiles: ");
134 |         sb.Append(uuid2path.Count);
135 |         sb.Append("\n");
136 |         uuid2path.ForEach(kv => sb.Append(kv.Value +"\n"));
137 | 
138 |         File.WriteAllText("Assets/unusedpic.txt", sb.ToString());
139 |         EditorUtility.DisplayDialog("扫描成功", string.Format("共找到{0}个冗余图片\n请在Assets/unsedpic.txt查看结果",uuid2path.Count), "ok");
140 |     }
141 | }
142 | 


--------------------------------------------------------------------------------