1

keyBoard/Class/AiTalk/M/KBAIReplyModel.m

@@ -7,7 +7,6 @@
 
 #import "KBAIReplyModel.h"
 #import <MJExtension/MJExtension.h>
-#import "KBAIReplyModel.h"
 
 
 @implementation KBAIReplyModel
@@ -40,6 +39,31 @@
   }
 }
 
+#pragma mark - MJExtension Hook
+
+/// MJExtension 转换完成后的钩子方法，用于处理空值
+- (void)mj_didConvertToObjectWithKeyValues:(NSDictionary *)keyValues {
+  // 防止后端返回 null，统一设置空字符串为默认值
+  if (!_replyId) {
+    _replyId = @"";
+  }
+  if (!_userId) {
+    _userId = @"";
+  }
+  if (!_userName) {
+    _userName = @"";
+  }
+  if (!_avatarUrl) {
+    _avatarUrl = @"";
+  }
+  if (!_content) {
+    _content = @"";
+  }
+  if (!_replyToUserName) {
+    _replyToUserName = @"";
+  }
+}
+
 - (NSString *)formattedTime {
   NSDate *date = [NSDate dateWithTimeIntervalSince1970:self.createTime];
   NSTimeInterval interval = [[NSDate date] timeIntervalSinceDate:date];
@@ -70,7 +94,7 @@
   CGFloat contentWidth = maxWidth - 68 - 28 - 8 - 50;
   
   // 用户名高度（可能包含 "回复 @xxx"）
-  NSMutableString *userNameText = [NSMutableString stringWithString:self.userName];
+  NSMutableString *userNameText = [NSMutableString stringWithString:self.userName ?: @""];
   if (self.replyToUserName.length > 0) {
     [userNameText appendFormat:@" 回复 @%@", self.replyToUserName];
   }
@@ -83,7 +107,8 @@
   
   // 内容高度
   UIFont *contentFont = [UIFont systemFontOfSize:14];
-  CGRect contentRect = [self.content boundingRectWithSize:CGSizeMake(contentWidth, CGFLOAT_MAX)
+  NSString *contentText = self.content ?: @"";
+  CGRect contentRect = [contentText boundingRectWithSize:CGSizeMake(contentWidth, CGFLOAT_MAX)
                                                   options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading
                                                attributes:@{NSFontAttributeName: contentFont}
                                                   context:nil];