Unity游戏开发之一键修改所有预设的图片

//一键修改预设里面的图片
    [MenuItem("Custom Editor/Build/PCAssetbundle/ChangeIconName")]
    static void BuildPCChangeIconName()
    {
     	//存放预设目录
        string path = uiAssetsPath_ + "/";
        List files = new List();
        string[] filePaths = Directory.GetFiles(path, "*", SearchOption.AllDirectories);
        for (int i = 0; i < filePaths.Length; ++i)
        {
            if (filePaths[i].Contains(".meta"))
                continue;
            string filePath = cut2AssetFolder(filePaths[i]);
            GameObject file = AssetDatabase.LoadAssetAtPath(filePath, typeof(GameObject)) as GameObject;
            if (file != null)
                files.Add(file);
        }
        List allText = new List();
        
        for (int i = 0; i < files.Count; i++)
        {
            GameObject go = files[i];
            Transform[] grandFa = go.GetComponentsInChildren(true);
            //遍历每个预设所有的的UISprite 
            foreach (Transform child in grandFa)
            {
                UISprite spr = child.GetComponent();
                if (spr != null && spr.spriteName == "jinbi") 		//取出你的目标
                {
                    string str = "预设名字：" + go.name + "  图片名：" + spr.name + " 引用的图集名" + spr.spriteName + " 图片宽：" + spr.width;
                    UnityEngine.Debug.Log(str);
                    allText.Add(str);
                    if (spr.width > 40)
                    {
                        spr.MakePixelPerfect();
                    }
                    else
                    {
                        spr.spriteName = "xiaojinbi";			//修改为另一张图片
                        spr.MakePixelPerfect();
                    }
                }
            }
            EditorUtility.SetDirty(go);
        }
        AssetDatabase.SaveAssets();

        if (allText.Count > 0)
        {
        	//打印更改预设记录
            FileStream fs = new FileStream("MyLog.txt", FileMode.Create);
            StreamWriter sw = new StreamWriter(fs);
            for (int i = 0; i < allText.Count; i++)
            {
                sw.WriteLine(allText[i]);
            }
            //清空缓冲区
            sw.Flush();
            //关闭流
            sw.Close();
            fs.Close();
        }

把脚本放在unity的Editor目录下，在unity菜单下运行ChangeIconName就可以了。
当然了，修改字体也是一样的，把UISprite 换成UIlabel就可以了。