diff --git a/example/pubspec.lock b/example/pubspec.lock
index af1cb3a..ce7f42a 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -21,93 +21,86 @@ packages:
     dependency: "direct main"
     description:
       name: args
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.0"
+    version: "2.3.1"
   async:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.9.0"
   auto_size_text_pk:
     dependency: transitive
     description:
       name: auto_size_text_pk
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   bot_toast:
     dependency: transitive
     description:
       name: bot_toast
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.1"
+    version: "4.0.3"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.3.1"
   cli_util:
     dependency: transitive
     description:
       name: cli_util
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.3"
+    version: "0.3.5"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   cross_file:
     dependency: transitive
     description:
       name: cross_file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.1+4"
+    version: "0.3.3+2"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.3"
+    version: "1.0.5"
   expandable:
     dependency: transitive
     description:
       name: expandable
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.0.1"
   file:
     dependency: transitive
     description:
       name: file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "6.1.2"
+    version: "6.1.4"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -117,9 +110,9 @@ packages:
     dependency: transitive
     description:
       name: flutter_easyrefresh
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.1"
+    version: "2.2.2"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -129,16 +122,16 @@ packages:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.7"
   flutter_screenutil:
     dependency: transitive
     description:
       name: flutter_screenutil
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.0+2"
+    version: "5.5.4"
   flutter_web_plugins:
     dependency: transitive
     description: flutter
@@ -148,107 +141,100 @@ packages:
     dependency: "direct main"
     description:
       name: get
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.3.8"
+    version: "4.6.5"
   glob:
     dependency: transitive
     description:
       name: glob
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.1.0"
   grinder:
     dependency: "direct main"
     description:
       name: grinder
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.0"
+    version: "0.9.1"
   http:
     dependency: transitive
     description:
       name: http
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.3"
+    version: "0.13.5"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.0.1"
   image_picker:
     dependency: transitive
     description:
       name: image_picker
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.7.5+4"
   image_picker_for_web:
     dependency: transitive
     description:
       name: image_picker_for_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "2.1.8"
   image_picker_platform_interface:
     dependency: transitive
     description:
       name: image_picker_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.0"
+    version: "2.6.1"
   intl:
     dependency: transitive
     description:
       name: intl
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   lpinyin:
     dependency: transitive
     description:
       name: lpinyin
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.11.1"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -258,51 +244,51 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.1"
+    version: "1.9.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.2.1"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   velocity_x:
     dependency: transitive
     description:
       name: velocity_x
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.3.0"
+    version: "3.5.1"
   vxstate:
     dependency: transitive
     description:
       name: vxstate
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
 sdks:
-  dart: ">=2.14.0 <3.0.0"
-  flutter: ">=2.0.0"
+  dart: ">=2.15.0 <3.0.0"
+  flutter: ">=2.8.0"
diff --git a/lib/text_field/as_search_text_field.dart b/lib/text_field/as_search_text_field.dart
index 7d7c18b..5f3dada 100644
--- a/lib/text_field/as_search_text_field.dart
+++ b/lib/text_field/as_search_text_field.dart
@@ -15,6 +15,7 @@ class ASSearchTextField extends StatefulWidget implements PreferredSizeWidget {
     this.onPressed,
     this.height,
     this.prefix,
+    this.suffix,
   })  : button = false,
         super(key: key);
 
@@ -30,6 +31,7 @@ class ASSearchTextField extends StatefulWidget implements PreferredSizeWidget {
     this.onPressed,
     this.height,
     this.prefix,
+    this.suffix,
   })  : button = true,
         super(key: key);
 
@@ -62,6 +64,9 @@ class ASSearchTextField extends StatefulWidget implements PreferredSizeWidget {
   ///搜索内容筛选
   final Widget? prefix;
 
+  /// 后置widget 只有非button类型有效
+  final Widget? suffix;
+
   @override
   _ASSearchTextFieldState createState() => _ASSearchTextFieldState();
 
@@ -142,34 +147,35 @@ class _ASSearchTextFieldState extends State<ASSearchTextField> {
         cursorColor: kPrimaryColor,
         textInputAction: TextInputAction.search,
         decoration: InputDecoration(
-          fillColor: Color(0xFFF8F8F8),
-          filled: true,
-          hintText: widget.hintText,
-          hintStyle: TextStyle(
-            color: kTextSubColor,
-            fontSize: 14.sp,
-          ),
-          border: _border,
-          enabledBorder: _border,
-          focusedBorder: _border,
-          focusedErrorBorder: _border,
-          prefixIcon: Padding(
-            padding: EdgeInsets.only(left: 13.w, right: 8.w),
-            child: Row(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                Icon(
-                  Icons.search,
-                  size: 16.w,
-                  color: Colors.black,
-                ),
-                widget.prefix ?? SizedBox(),
-              ],
+            fillColor: Color(0xFFF8F8F8),
+            filled: true,
+            hintText: widget.hintText,
+            hintStyle: TextStyle(
+              color: kTextSubColor,
+              fontSize: 14.sp,
             ),
-          ),
-          prefixIconConstraints: BoxConstraints(minWidth: 0, minHeight: 0),
-          contentPadding: EdgeInsets.zero,
-        ),
+            border: _border,
+            enabledBorder: _border,
+            focusedBorder: _border,
+            focusedErrorBorder: _border,
+            prefixIcon: Padding(
+              padding: EdgeInsets.only(left: 13.w, right: 8.w),
+              child: Row(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Icon(
+                    Icons.search,
+                    size: 16.w,
+                    color: Colors.black,
+                  ),
+                  widget.prefix ?? SizedBox(),
+                ],
+              ),
+            ),
+            prefixIconConstraints: BoxConstraints(minWidth: 0, minHeight: 0),
+            contentPadding: EdgeInsets.zero,
+            suffix: widget.suffix,
+            suffixIconConstraints: BoxConstraints(minWidth: 0, minHeight: 0)),
       ),
     );
   }
diff --git a/pubspec.lock b/pubspec.lock
index 321e64b..3740f7a 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -14,77 +14,77 @@ packages:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.8.2"
   auto_size_text_pk:
     dependency: "direct main"
     description:
       name: auto_size_text_pk
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   bot_toast:
     dependency: "direct main"
     description:
       name: bot_toast
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.1"
+    version: "4.0.3"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
   cross_file:
     dependency: transitive
     description:
       name: cross_file
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.1+5"
+    version: "0.3.3+2"
   expandable:
     dependency: "direct main"
     description:
       name: expandable
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "5.0.1"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   flutter:
@@ -96,23 +96,23 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_easyrefresh
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.1"
+    version: "2.2.2"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.3"
+    version: "2.0.7"
   flutter_screenutil:
     dependency: "direct main"
     description:
       name: flutter_screenutil
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.0+2"
+    version: "5.5.4"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -127,100 +127,93 @@ packages:
     dependency: "direct main"
     description:
       name: get
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.3.8"
+    version: "4.6.5"
   http:
     dependency: transitive
     description:
       name: http
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.3"
+    version: "0.13.5"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.0.1"
   image_picker:
     dependency: "direct main"
     description:
       name: image_picker
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.7.5+4"
   image_picker_for_web:
     dependency: transitive
     description:
       name: image_picker_for_web
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "2.1.8"
   image_picker_platform_interface:
     dependency: transitive
     description:
       name: image_picker_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.1"
+    version: "2.6.1"
   intl:
     dependency: transitive
     description:
       name: intl
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
   lpinyin:
     dependency: "direct main"
     description:
       name: lpinyin
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.3"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
   meta:
     dependency: transitive
     description:
       name: meta
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.11.1"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -230,72 +223,72 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.3"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
   velocity_x:
     dependency: "direct main"
     description:
       name: velocity_x
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.3.0"
+    version: "3.5.1"
   vxstate:
     dependency: transitive
     description:
       name: vxstate
-      url: "https://pub.flutter-io.cn"
+      url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
 sdks:
-  dart: ">=2.14.0 <3.0.0"
-  flutter: ">=2.0.0"
+  dart: ">=2.15.0 <3.0.0"
+  flutter: ">=2.8.0"