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我正在解析一个 xml 文件，并尝试在表格视图中显示 xml 文件的“标题”和“摘要”。我为每个“标题”制作一个子视图，为每个“摘要”制作一个子视图，并尝试将它们都放在一个单元格上。如果我只尝试放置“标题”或“摘要”，但当我尝试同时放置两者时，它会起作用。这是我的代码：

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

UITableViewCell *cell;
UILabel *label=nil , *secondLabel = nil;

cell = [tv dequeueReusableCellWithIdentifier:@"Cell"];
if (cell == nil)
{
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@"Cell"] autorelease];

    label = [[UILabel alloc] initWithFrame:CGRectZero];
    [label setLineBreakMode:UILineBreakModeWordWrap];
    [label setMinimumFontSize:FONT_SIZE];
    [label setNumberOfLines:0];
    [label setFont:[UIFont boldSystemFontOfSize:FONT_SIZE]];
    [label setTag:1];


    [[cell contentView] addSubview:label];

    secondLabel = [[UILabel alloc] initWithFrame:CGRectZero];
    [secondLabel setLineBreakMode:UILineBreakModeWordWrap];
    [secondLabel setMinimumFontSize:FONT_SIZE];
    [secondLabel setNumberOfLines:0];
    [secondLabel setFont:[UIFont systemFontOfSize:FONT_SIZE]];
    [secondLabel setTag:2]; 

    [[cell contentView] addSubview:secondLabel];    
}



int storyIndex = [indexPath indexAtPosition: [indexPath length]-1];
NSString *text1 = [[stories objectAtIndex: storyIndex] objectForKey: @"title"];  
NSString *text2 = [[stories objectAtIndex: storyIndex] objectForKey: @"summary"];

CGSize constraint = CGSizeMake(CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), 20000.0f);

CGSize size1 = [text1 sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];
CGSize size2 = [text2 sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];    

if (!label)
    label = (UILabel*)[cell viewWithTag:1];
if (!secondLabel)
    secondLabel = (UILabel*)[cell viewWithTag:2];    

[label setText:text1];
[secondLabel setText:text2];

[label setFrame:CGRectMake(CELL_CONTENT_MARGIN, CELL_CONTENT_MARGIN, CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), MAX(size1.height, 44.0f))];
[secondLabel setFrame:CGRectMake(CELL_CONTENT_MARGIN, CELL_CONTENT_MARGIN, CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), MAX(size2.height, 44.0f))]; 

return cell;  }

和 ：

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1];
NSString *text1 = [[stories objectAtIndex: storyIndex] objectForKey: @"title"];
NSString *text2 = [[stories objectAtIndex: storyIndex] objectForKey: @"summary"];    


CGSize constraint = CGSizeMake(CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), 20000.0f);

CGSize size1 = [text1 sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];
CGSize size2 = [text2 sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];    
CGFloat height = MAX(size1.height + size2.height, 44.0f);

return height + (CELL_CONTENT_MARGIN * 2);}

谢谢！

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1 回答 1

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代替

cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@"Cell"] autorelease];

采用

cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"] autorelease];


//Now you can use 2 different texts    
cell.textLabel.text = @"Text1";
cell.detailTextLabel.text = @"Text2";
于 2012-06-03T18:52:38.743 回答