追加NSString和NSMutableAttributedString

Question

我想合併NSString和NSMutableAttributedString。

在下面的代碼中，我想將self.txtSearch作爲自定義粗體大小和顏色。

碼 -

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 
SearchViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SearchViewCell"]; 
AutoSuggestModel *autoSuggestModel = [self.autoSuggestArray objectAtIndex:indexPath.row]; 

if ([[autoSuggestModel type] isEqualToString:@"product"] || [[autoSuggestModel type] isEqualToString:@"category"]){ 

    cell.lblText.text = [NSString stringWithFormat:@"%@ in %@", self.txtSearch , [autoSuggestModel label]] ; 

}else{ 
    cell.lblText.text = [autoSuggestModel label]; 
} 
return cell; 
} 

我可以大膽特定字符串與下面的代碼。但我想追加這兩個字符串。

NSMutableAttributedString *boldString = [[NSMutableAttributedString alloc] initWithString:self.txtSearch]; 
    NSRange boldRange = [[autoSuggestModel label] rangeOfString:self.txtSearch]; 
    [boldString addAttribute: NSFontAttributeName value:[UIFont boldSystemFontOfSize:16] range:boldRange]; 
    [cell.lblText setAttributedText: boldString]; 

Answer 1

一個非常粗略的看一下NSString documentation有一個稱爲「組合的字符串」部分和一個叫stringByAppendingString:

使用這種方法方法，應該是令人難以置信的直向前來完成你想要什麼做。

NSMutableAttributedString *boldString = [[NSMutableAttributedString alloc] 
    initWithString:[self.txtSearch stringByAppendingString:yourMutableString]]; 

Answer 2

更新你喜歡的方法波紋管

if ([[autoSuggestModel type] isEqualToString:@"product"] || [[autoSuggestModel type] isEqualToString:@"category"]){ 

     cell.textLabel.attributedText = [self getBoldText:cell withSearch:@"search text" withAutoSuggestModel:@"autoSuggestModel"]; 

    }else{ 
     cell.lblText.text = [autoSuggestModel label]; 
    } 

//通過下面的方法

-(NSMutableAttributedString*)getBoldText:(UITableViewCell*)cell withSearch:(NSString*)searchText withAutoSuggestModel:(NSString*)autoSuggestModelText{ 
NSString *title = [NSString stringWithFormat:@"%@ in %@", searchText,autoSuggestModelText]; 
cell.textLabel.text = title; 
UIColor *color = [UIColor redColor]; 
UIFont *font = [UIFont boldSystemFontOfSize:16]; 

NSDictionary *attrs = @{NSForegroundColorAttributeName : color,NSFontAttributeName:font}; 

NSMutableAttributedString * attrStr = [[NSMutableAttributedString alloc] initWithAttributedString:cell.textLabel.attributedText]; 
[attrStr addAttributes:attrs range:[title rangeOfString:autoSuggestModelText]]; 
return attrStr; 

}