如何將屬性文本設置為自定義UITableView單元格中定義的UILabel

Question

將屬性文本設置為在uitableview單元格中定義的uilable有點麻煩。 我在uitableview的cellForRowAtIndexPath委托方法中設置屬性文本，但不影響輸出。 我只是希望uilabel的文本將顯示為粗體文本。 我的代碼如下：

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

 MessagesTable *msgobject=[messages objectAtIndex:indexPath.row];
 static NSString* cellIdentifier = @"messagingCellText";
    TextTableViewCell *ccell = (TextTableViewCell*) [tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    if (ccell == nil)
    {
        ccell = [[TextTableViewCell alloc] initMessagingCellWithReuseIdentifier:cellIdentifier MessageType:msgobject.messageMediaType];
        cell2.backgroundColor=[UIColor clearColor];
        cell2.userInteractionEnabled=YES;

        cell2.layer.shouldRasterize = YES;
        cell2.layer.rasterizationScale = [UIScreen mainScreen].scale;
    }

NSString *newString = "This is Bold, This is regular"; 
 NSMutableAttributedString* attrStr = [[NSMutableAttributedString      alloc]initWithString:newString];
 NSRange rangeOfSubstring = [newString rangeOfString:@"This is Bold"];  
 [attrStr addAttribute:NSFontAttributeName
                             value:[UIFont fontWithName:@"GandhiSans-Bold" size:16]
                             range:rangeOfSubstring]; 
 ccell.messageLabel.attributedText = attrStr;
 return ccell;
 }

我的initMessagingCellWithReuseIdentifier：方法如下：

 -(id)initMessagingCellWithReuseIdentifier:(NSString*)reuseIdentifier MessageType:(NSString *)msgTypePara{
 if (self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier]) {
   /*Message-Label*/
        self.messageLabel = [[UILabel alloc] initWithFrame:CGRectZero];
        self.messageLabel.backgroundColor = [UIColor clearColor];
        //self.messageLabel.font = [UIFont systemFontOfSize:messageTextSize];
        self.messageLabel.lineBreakMode = NSLineBreakByWordWrapping;
        self.messageLabel.numberOfLines = 0;
        self.messageLabel.textColor=[UIColor blackColor];
        self.messageLabel.textAlignment=NSTextAlignmentLeft;
        //self.messageLabel.font=[UIFont preferredFontForTextStyle:UIFontTextStyleBody];
        //self.messageLabel.font = [UIFont fontWithName:@"GandhiSans-regular" size:messageTextSize];
        self.messageLabel.userInteractionEnabled=YES;
        [self.messageLabel sizeToFit];
        [self addSubview: self.messageLabel];



    [self.contentView addSubview: self.messageView];
 return self;
 }

Answer 1

試試看，請用您的特定代碼替換它，並檢查是否發生任何更改

NSString *newString = @"This is Bold, This is regular";
    NSMutableAttributedString* attrStr = [[NSMutableAttributedString  alloc]initWithString:newString];
    NSRange rangeOfSubstring = [newString rangeOfString:@"This is Bold"];


    [attrStr addAttribute:NSFontAttributeName
                    value:[UIFont fontWithName:@"TimesNewRomanPS-BoldMT" size:16]
                    range:rangeOfSubstring];

    [attrStr addAttribute:NSForegroundColorAttributeName
                    value:[UIColor redColor]
                    range:rangeOfSubstring];

Answer 2

嘗試這個：

NSMutableAttributedString *MylabelAttributes = [[NSMutableAttributedString alloc] initWithString:@"my test"];


[MylabelAttributes addAttribute:NSForegroundColorAttributeName value:[UIColor yourcolor]  range:NSMakeRange(0,MylabelAttributes.length)];
[MylabelAttributes addAttribute:NSFontAttributeName
                          value:[UIFont boldSystemFontOfSize:19.0]
                          range:NSMakeRange(0,MylabelAttributes.length)];

self.yourlabel.attributedText=MylabelAttributes;