[Unity工具]批量修改字体

效果图：

 using System.IO;
 using System.Text;
 using UnityEditor;
 using UnityEngine;
 using UnityEngine.UI;

 /// <summary>
 /// 将目标文件夹下所有Prefab的丢失、默认字体的位置输出，并替换成目标字体
 /// </summary>
 public class BatchModifyFontWindow : EditorWindow {

     Font toFont = new Font("Arial");//目标字体
     string searchFolder = "Assets/Resources/Prefabs";//目标文件夹
     string outputPath = Application.dataPath + "/BatchModifyFont.txt";//输出文件路径
     bool needReplace = false;//是否要进行替换

     [MenuItem("Window/Custom/BatchModifyFontWindow")]
     private static void ShowWindow()
     {
         EditorWindow.GetWindow<BatchModifyFontWindow>(true, "批量修改字体", true);
     }

     void OnGUI()
     {
         EditorGUILayout.LabelField("功能描述：将目标文件夹下所有Prefab的丢失、默认字体的位置输出，并替换成目标字体");

         GUILayout.BeginHorizontal();
         EditorGUILayout.LabelField("目标文件夹为：" + searchFolder);
         if (GUILayout.Button("选择文件夹"))
         {
             string temp = EditorUtility.OpenFolderPanel("请选择目标文件夹", Application.dataPath, "");
             if (!string.IsNullOrEmpty(temp))
             {
                 temp = temp.Substring(temp.IndexOf("Assets"));
                 searchFolder = temp;
             }
         }
         GUILayout.EndHorizontal();

         EditorGUILayout.LabelField("输出文件路径：" + outputPath);

         GUILayout.BeginHorizontal();
         GUILayout.Label("目标字体为：");
         toFont = (Font)EditorGUILayout.ObjectField(toFont, typeof(Font), true, GUILayout.MinWidth(100f));
         GUILayout.EndHorizontal();

         GUILayout.BeginHorizontal();
         string replaceBtnStr;
         if (needReplace)
         {
             replaceBtnStr = "输出要替换的位置并替换字体";
         }
         else
         {
             replaceBtnStr = "输出要替换的位置";
         }
         if (GUILayout.Button(replaceBtnStr))
         {
             StringBuilder builder = new StringBuilder();
             int counter = ;
             string[] guids = AssetDatabase.FindAssets("t:Prefab", new string[] { searchFolder });
             for (int i = ; i < guids.Length; i++)
             {
                 string path = AssetDatabase.GUIDToAssetPath(guids[i]);
                 //Debug.Log(path);
                 EditorUtility.DisplayProgressBar("Hold on", path, (float)(i + ) / guids.Length);

                 bool hasModifyFont = false;
                 GameObject go = AssetDatabase.LoadAssetAtPath<GameObject>(path);
                 Text[] texts = go.GetComponentsInChildren<Text>(true);
                 for (int j = ; j < texts.Length; j++)
                 {
                     Text text = texts[j];
                     string fontName;
                     string log;
                     if (text.font)
                     {
                         fontName = text.font.name;
                     }
                     else
                     {
                         fontName = "Missing";
                     }

                     log = path.Substring(, path.LastIndexOf("/")) + "/" + GetFontPath(go.transform, text.transform) + fontName;
                     //Debug.Log(log);

                     //对丢失、默认字体进行处理
                     if ((fontName == "Missing") || (fontName == "Arial"))
                     {
                         if (needReplace)
                         {
                             text.font = toFont;
                             hasModifyFont = true;
                         }
                         counter++;
                         builder.Append(log + "\r\n");
                         Debug.Log(log);
                     }
                 }

                 if (hasModifyFont)
                 {
                     EditorUtility.SetDirty(go);
                 }
             }

             if (needReplace)
             {
                 Debug.Log(string.Format("替换完成。替换了{0}处", counter));
             }
             else
             {
                 Debug.Log(string.Format("需要替换{0}处", counter));
             }
             File.WriteAllText(outputPath, builder.ToString());
             AssetDatabase.Refresh();
             EditorUtility.ClearProgressBar();
         }
         EditorGUILayout.LabelField("替换字体");
         needReplace = EditorGUILayout.Toggle(needReplace);
         GUILayout.EndHorizontal();
     }

     string GetFontPath(Transform parentTra, Transform fontTra)
     {
         string path = "";
         while (parentTra != fontTra)
         {
             path = fontTra.gameObject.name + "/" + path;
             fontTra = fontTra.parent;
         }
         return parentTra.gameObject.name + "/" + path;
     }
 }