fix：会话列表的最近消息项未对齐；修改群昵称格式验证

lib/ui/views/TIMUIKitConversation/tim_uikit_conversation_item.dart

@@ -173,6 +173,7 @@ class TIMUIKitConversationItem extends TIMUIKitStatelessWidget {
                     height: 6,
                   ),
                 Row(
+                  crossAxisAlignment: CrossAxisAlignment.center,
                   children: [
                     Expanded(child: _getShowMsgWidget(context)),
                     if (isDisturb)

lib/ui/views/TIMUIKitConversation/tim_uikit_conversation_last_msg.dart

@@ -90,15 +90,20 @@ class _TIMUIKitLastMsgState extends TIMUIKitState<TIMUIKitLastMsg> {
     final isAdminRevoke = revokeStatus.$2;
     if (isRevokedMessage) {
       final isSelf = widget.lastMsg!.isSelf ?? true;
-      final option1 =
+      final option1 = isAdminRevoke
-          isAdminRevoke ? TIM_t("管理员") : (isSelf ? TIM_t("您") : widget.lastMsg!.nickName ?? widget.lastMsg?.sender);
+          ? TIM_t("管理员")
+          : (isSelf
+              ? TIM_t("您")
+              : widget.lastMsg!.nickName ?? widget.lastMsg?.sender);
       if (mounted) {
         setState(() {
-          groupTipsAbstractText = TIM_t_para("{{option1}}撤回了一条消息", "$option1撤回了一条消息")(option1: option1);
+          groupTipsAbstractText = TIM_t_para(
+              "{{option1}}撤回了一条消息", "$option1撤回了一条消息")(option1: option1);
         });
       }
     } else {
-      String msgShowText = await _getLastMsgShowText(widget.lastMsg, widget.context) ?? "";
+      String msgShowText =
+          await _getLastMsgShowText(widget.lastMsg, widget.context) ?? "";
       if (mounted) {
         setState(() {
           groupTipsAbstractText = msgShowText;
@@ -110,14 +115,16 @@ class _TIMUIKitLastMsgState extends TIMUIKitState<TIMUIKitLastMsg> {
   String _getDisturbUnreadCountInfo() {
     if (widget.isDisturb && widget.unreadCount > 0) {
       final option1 = widget.unreadCount.toString();
-      String unreadCountText = TIM_t_para("[{{option1}} 条]", "[$option1 条]")(option1: option1);
+      String unreadCountText =
+          TIM_t_para("[{{option1}}条] ", "[$option1 条]")(option1: option1);
       return unreadCountText;
     }
 
     return "";
   }
 
-  Future<String?> _getLastMsgShowText(V2TimMessage? message, BuildContext context) async {
+  Future<String?> _getLastMsgShowText(
+      V2TimMessage? message, BuildContext context) async {
     final msgType = message!.elemType;
     switch (msgType) {
       case MessageElemType.V2TIM_ELEM_TYPE_CUSTOM:
@@ -130,9 +137,11 @@ class _TIMUIKitLastMsgState extends TIMUIKitState<TIMUIKitLastMsg> {
         return TIM_t("[表情]");
       case MessageElemType.V2TIM_ELEM_TYPE_FILE:
         final option1 = widget.lastMsg!.fileElem!.fileName;
-        return TIM_t_para("[文件] {{option1}}", "[文件] $option1")(option1: option1);
+        return TIM_t_para("[文件] {{option1}}", "[文件] $option1")(
+            option1: option1);
       case MessageElemType.V2TIM_ELEM_TYPE_GROUP_TIPS:
-        return await MessageUtils.groupTipsMessageAbstract(widget.lastMsg!.groupTipsElem!, []);
+        return await MessageUtils.groupTipsMessageAbstract(
+            widget.lastMsg!.groupTipsElem!, []);
       case MessageElemType.V2TIM_ELEM_TYPE_IMAGE:
         return TIM_t("[图片]");
       case MessageElemType.V2TIM_ELEM_TYPE_VIDEO:
@@ -194,48 +203,90 @@ class _TIMUIKitLastMsgState extends TIMUIKitState<TIMUIKitLastMsg> {
 
   @override
   Widget tuiBuild(BuildContext context, TUIKitBuildValue value) {
-    final isDesktopScreen = TUIKitScreenUtils.getFormFactor(context) == DeviceType.Desktop;
+    final isDesktopScreen =
+        TUIKitScreenUtils.getFormFactor(context) == DeviceType.Desktop;
     final TUITheme theme = value.theme;
     final icon = _getIconByMsgStatus(context);
     String disturbUnreadCountInfo = _getDisturbUnreadCountInfo();
-    return Row(children: [
+    return Row(
+        crossAxisAlignment: CrossAxisAlignment.center,
+        children: [
           if (icon != null)
             Container(
               margin: const EdgeInsets.only(right: 2),
               child: icon,
             ),
           if (widget.groupAtInfoList.isNotEmpty)
-        Text(_getAtMessage(), style: TextStyle(color: theme.cautionColor, fontSize: widget.fontSize)),
+            Baseline(
+              baseline: widget.fontSize,
+              baselineType: TextBaseline.alphabetic,
+              child: Text(_getAtMessage(),
+                  style: TextStyle(
+                      color: theme.cautionColor,
+                      fontSize: widget.fontSize,
+                      height: 1.0)),
+            ),
           if (widget.draftText != null && widget.draftText != "")
-        Text(_getDraftShowText(),
+            Baseline(
-            style: TextStyle(color: theme.conversationItemDraftTextColor, fontSize: widget.fontSize)),
+              baseline: widget.fontSize,
+              baselineType: TextBaseline.alphabetic,
+              child: Text(_getDraftShowText(),
+                  style: TextStyle(
+                      color: theme.conversationItemDraftTextColor,
+                      fontSize: widget.fontSize,
+                      height: 1.0)),
+            ),
           if (disturbUnreadCountInfo != "")
-        Text(disturbUnreadCountInfo, style: TextStyle(color: theme.weakTextColor, fontSize: widget.fontSize)),
+            Baseline(
+              baseline: widget.fontSize,
+              baselineType: TextBaseline.alphabetic,
+              child: Text(disturbUnreadCountInfo,
+                  style: TextStyle(
+                      color: theme.weakTextColor,
+                      fontSize: widget.fontSize,
+                      height: 1.0)),
+            ),
           if (widget.draftText != null && widget.draftText != "")
             Expanded(
+              child: Baseline(
+                baseline: widget.fontSize,
+                baselineType: TextBaseline.alphabetic,
                 child: ExtendedText(groupTipsAbstractText,
                     softWrap: true,
                     maxLines: 1,
                     overflow: TextOverflow.ellipsis,
-              style: TextStyle(height: 1, color: theme.weakTextColor, fontSize: widget.fontSize),
+                    style: TextStyle(
+                        color: theme.weakTextColor,
+                        fontSize: widget.fontSize,
+                        height: 1.0),
                     specialTextSpanBuilder: DefaultSpecialTextSpanBuilder(
                       isUseQQPackage: true,
                       isUseTencentCloudChatPackage: true,
                       showAtBackground: true,
                     )),
               ),
-      if (widget.draftText == null || widget.draftText == "" && TencentUtils.checkString(groupTipsAbstractText) != null)
+            ),
+          if (widget.draftText == null ||
+              widget.draftText == "" &&
+                  TencentUtils.checkString(groupTipsAbstractText) != null)
             Expanded(
+              child: Baseline(
+                baseline: widget.fontSize,
+                baselineType: TextBaseline.alphabetic,
                 child: ExtendedText(groupTipsAbstractText,
                     softWrap: true,
                     maxLines: 1,
                     overflow: TextOverflow.ellipsis,
-              style: TextStyle(height: 1, color: theme.weakTextColor, fontSize: widget.fontSize),
+                    style: TextStyle(
+                        color: theme.weakTextColor,
+                        fontSize: widget.fontSize,
+                        height: 1.0),
                     specialTextSpanBuilder: DefaultSpecialTextSpanBuilder(
                       isUseQQPackage: true,
                       isUseTencentCloudChatPackage: true,
                       showAtBackground: true,
                     )),
+              ),
             )
         ]);
   }

lib/ui/views/TIMUIKitGroupProfile/widgets/tim_uikit_group_name_card.dart

@@ -52,7 +52,18 @@ class GroupProfileNameCardState extends TIMUIKitState<GroupProfileNameCard>{
                 tips: TIM_t("仅限中文、字母、数字和下划线，2-20个字"),
                 onSubmitted: (String nameCard) async {
                   final text = nameCard.trim();
+                  // 验证输入格式
+                  if (_validateNameCard(text)) {
                     model.setNameCard(text);
+                  } else {
+                    // 显示错误提示
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(
+                        content: Text(TIM_t("仅限中文、字母、数字和下划线，2-20个字")),
+                        backgroundColor: Colors.red,
+                      ),
+                    );
+                  }
                 },
                 theme: theme);
           }
@@ -104,7 +115,19 @@ class GroupProfileNameCardState extends TIMUIKitState<GroupProfileNameCard>{
                     controller: controller,
                     maxLines: 1,
                     onSubmitted: (text) {
-                      model.setNameCard(text.trim());
+                      final trimmedText = text.trim();
+                      // 验证输入格式
+                      if (_validateNameCard(trimmedText)) {
+                        model.setNameCard(trimmedText);
+                      } else {
+                        // 显示错误提示
+                        ScaffoldMessenger.of(context).showSnackBar(
+                          SnackBar(
+                            content: Text(TIM_t("仅限中文、字母、数字和下划线，2-20个字")),
+                            backgroundColor: Colors.red,
+                          ),
+                        );
+                      }
                     },
                     keyboardType: TextInputType.multiline,
                     autofocus: true,
@@ -142,4 +165,21 @@ class GroupProfileNameCardState extends TIMUIKitState<GroupProfileNameCard>{
       ),
     );
   }
+
+  /// 验证群昵称格式
+  /// 仅限中文、字母、数字和下划线，2-20个字
+  bool _validateNameCard(String text) {
+    if (text.isEmpty) {
+      return false;
+    }
+    
+    // 检查长度：2-20个字符
+    if (text.length < 2 || text.length > 20) {
+      return false;
+    }
+    
+    // 检查字符类型：仅限中文、字母、数字和下划线
+    final RegExp regex = RegExp(r'^[\u4e00-\u9fa5a-zA-Z0-9_]+$');
+    return regex.hasMatch(text);
+  }
 }