我在UITableViewCell中有三个自定义的UILabel。像这样的单元设计,在iPhone中动态更改UITableviewCell高度?
Date(12.1.2012) Time(12.00pm)
Cost: $20.00
Details
我已经在- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath;
中指定了行高100。但是,现在细节有时会从服务器返回空(空)。那时我需要从单元格中移除细节标签并将特定的单元格(行)高度更改为70.我该怎么做?我在Google中最好地搜索了我的级别。但是,我仍然只是困惑这样做。你能帮我么?谢谢。我从这个链接中得到了一些想法 - http://www.cimgf.com/2009/09/23/uitableviewcell-dynamic-height/
。他们只使用一个标签来调整行高。请帮帮我。
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 90;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
UILabel *dateLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, 100, 30)];
dateLabel.tag = 100;
dateLabel.backgroundColor = [UIColor clearColor];
dateLabel.font = [UIFont fontWithName:@"Helvetica" size:16];
dateLabel.font = [UIFont boldSystemFontOfSize:16];
dateLabel.highlightedTextColor = [UIColor whiteColor];
[cell.contentView addSubview: dateLabel];
UILabel *timeLabel = [[UILabel alloc] initWithFrame:CGRectMake(120, 0, 200, 25)];
timeLabel.tag = 101;
timeLabel.backgroundColor = [UIColor clearColor];
timeLabel.font = [UIFont fontWithName:@"Helvetica" size:14];
timeLabel.highlightedTextColor = [UIColor whiteColor];
[cell.contentView addSubview: timeLabel];
UILabel *costLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 30, 300, 25)];
costLabel.tag = 102;
costLabel.backgroundColor = [UIColor clearColor];
costLabel.font = [UIFont fontWithName:@"Helvetica" size:14];
costLabel.font = [UIFont boldSystemFontOfSize:14];
costLabel.highlightedTextColor = [UIColor whiteColor];
[cell.contentView addSubview: costLabel];
UILabel *eventLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 60, 300, 25)];
eventLabel.tag = 103;
eventLabel.backgroundColor = [UIColor clearColor];
eventLabel.font = [UIFont fontWithName:@"Helvetica" size:14];
eventLabel.font = [UIFont boldSystemFontOfSize:14];
eventLabel.highlightedTextColor = [UIColor whiteColor];
[cell.contentView addSubview: eventLabel];
}
UILabel *dateLabel = (UILabel *) [cell.contentView viewWithTag:100];
dateLabel.text = [DateArray objectAtIndex:indexPath.row];
UILabel * timeLabel = (UILabel *) [cell.contentView viewWithTag:101];
timeLabel.text = [timeArray objectAtIndex:indexPath.row];
UILabel * costLabel = (UILabel *) [cell.contentView viewWithTag:102];
costLabel.text = [costArray objectAtIndex:indexPath.row];
UILabel *eventLabel = (UILabel *) [cell.contentView viewWithTag:103];
NSString *description = [eventArray objectAtIndex:indexPath.row];
if([description isEqualToString:@""])
{
eventLabel.text = @""; // Here i don't want to show this label and resize(reduce) the row height to 60;
}
else
{
eventLabel.text = description;
}
return cell;
}
我该怎么做?谢谢。
Mr.MadhavanRP感谢您的回答。我已经在我的代码中尝试了您的答案。我检查了cellForRowAtIndexPath中的条件:也。第一次它工作正常。当我滚动tableview时,单元格大小已更改,说明标签已更改位置。这意味着说明标签已删除所有行。你能帮我么。谢谢 – Gopinath 2012-01-13 07:17:37
@Gopinath为什么不尝试添加细节标签作为单元格的子视图,只有当你有一些描述。您可能需要创建一个自定义类来解决滚动问题。参考这个问题的答案http://stackoverflow.com/questions/8352530/changing-the-position-of-custom-uibutton-in-custom-uitableviewcell – MadhavanRP 2012-01-13 08:48:50