我已经配置MySQL表来存储表情符号，如下：

ALTER TABLE field_data_field_notes MODIFY field_notes_value 
VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

也就是说，当我将字符串返回到我的应用程序并尝试在UILabel中显示它们时，它们显示如下：

Birthday emoji 🎈

Emoji是一个气球。我试过下面的代码来解码它并显示实际的表情符号，但它似乎不起作用（例如：UILLabel仍然显示表情符号&amp文本）？注意，我使用的是Drupal，并且启用了'Unicode'模块，所以我想这就是为什么编码格式是&#x1F388的原因。

- (UITableViewCell *)tableView:(UITableView*)tableView cellForRowAtIndexPath:(nonnull NSIndexPath *)indexPath {
        
 TimeTableViewCell *cell = (TimeTableViewCell *)[self.subtableView dequeueReusableCellWithIdentifier:WeeklyTableIdentifier];
                
                    
                if (cell == nil)
                {
                    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"TimeTableViewCell" owner:self options:nil];
                    cell = [nib objectAtIndex:0];
                    
                }
    
    NSString *encodedString =[self.sortedByTime valueForKey:@"notes"][indexPath.row];
    
    NSString *decodedString = [self decodeString:encodedString];
    
                      
    cell.notes.text = decodedString;
    
    }

- (NSString *)decodeString:(NSString *)string {
    // Decode HTML entities
    NSDictionary *entities = @{
        @"&" : @"&",
        @""" : @"\"",
        @"'" : @"'",
        @"&lt;" : @"<",
        @"&gt;" : @">",
        // Add more entity mappings as needed
    };

    NSMutableString *decodedString = [NSMutableString stringWithString:string];
    
    for (NSString *entity in entities) {
        NSString *replacement = [entities objectForKey:entity];
        [decodedString replaceOccurrencesOfString:entity withString:replacement options:NSLiteralSearch range:NSMakeRange(0, [decodedString length])];
    }
    
    // Decode Unicode escape sequences
    NSString *decodedUnicodeString = [decodedString stringByReplacingOccurrencesOfString:@"&#x" withString:@"\\U0000"];
    NSData *data = [decodedUnicodeString dataUsingEncoding:NSUTF8StringEncoding];
    NSString *decodedEmojiString = [[NSString alloc] initWithData:data encoding:NSNonLossyASCIIStringEncoding];
    
    return decodedEmojiString ?: decodedString;
}

下面是我用来将字符串保存到数据库的代码：

NSDictionary *notesField = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:self.notesField.text, nil] forKeys:[NSArray arrayWithObjects:@"value", nil]];
 NSDictionary *notesFieldcontent = [NSDictionary dictionaryWithObject:[NSArray arrayWithObject:notesField] forKey:@"und"];
            
            [self.nodeData setObject:notesFieldcontent forKey:@"field_notes"];
    
      [DIOSNode nodeSave:self.nodeData success:^(AFHTTPRequestOperation *operation, id responseObject) {
               
    
      } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                
                
             
            }];