Add IsNotEmpty function

v2rayN/ServiceLib/Common/DownloaderHelper.cs

@@ -18,7 +18,7 @@ namespace ServiceLib.Common
             Uri uri = new(url);
             //Authorization Header
             var headers = new WebHeaderCollection();
-            if (!Utils.IsNullOrEmpty(uri.UserInfo))
+            if (Utils.IsNotEmpty(uri.UserInfo))
             {
                 headers.Add(HttpRequestHeader.Authorization, "Basic " + Utils.Base64Encode(uri.UserInfo));
             }

v2rayN/ServiceLib/Common/FileManager.cs

@@ -82,7 +82,7 @@ namespace ServiceLib.Common
                     }
                     try
                     {
-                        if (!Utils.IsNullOrEmpty(ignoredName) && entry.Name.Contains(ignoredName))
+                        if (Utils.IsNotEmpty(ignoredName) && entry.Name.Contains(ignoredName))
                         {
                             continue;
                         }
@@ -157,7 +157,7 @@ namespace ServiceLib.Common
             // Get the files in the source directory and copy to the destination directory
             foreach (FileInfo file in dir.GetFiles())
             {
-                if (!Utils.IsNullOrEmpty(ignoredName) && file.Name.Contains(ignoredName))
+                if (Utils.IsNotEmpty(ignoredName) && file.Name.Contains(ignoredName))
                 {
                     continue;
                 }

v2rayN/ServiceLib/Common/HttpClientHelper.cs

@@ -22,7 +22,7 @@ namespace ServiceLib.Common
 
         public async Task<string?> TryGetAsync(string url)
         {
-            if (string.IsNullOrEmpty(url))
+            if (Utils.IsNullOrEmpty(url))
                 return null;
 
             try

v2rayN/ServiceLib/Common/Utils.cs

@@ -417,6 +417,11 @@ namespace ServiceLib.Common
             return false;
         }
 
+        public static bool IsNotEmpty(string? text)
+        {
+            return !string.IsNullOrEmpty(text);
+        }
+
         /// <summary>
         /// 验证IP地址是否合法
         /// </summary>