我认为我的桌子很好,直到我将背景改变为有点透明,这显示了新出列的细胞下面的先前细胞。这是我的tableView:cellForRowAtIndexPath:
方法中的代码。我拿出了多余的标签设置,它们与timeLabel
完全相同。
static NSString* cellIdentifer = @"Cell";
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier: cellIdentifer];
if (!cell)
{
cell= [[UITableViewCell alloc] initWithStyle: UITableViewCellStyleSubtitle reuseIdentifier: cellIdentifer];
}
int offset = 5;
int rowHeight = 120;
UIView* cellView = [[UIView alloc] initWithFrame: CGRectMake(offset, offset, 320 - offset * 2, rowHeight - offset * 2)];
cellView.backgroundColor = indexPath.row % 2 == 0 ? [UIColor colorWithWhite: 1.0 alpha: .8 ] : [UIColor colorWithWhite: .3 alpha: .8];
int padding = 5;
int x1 = 5;
int x2 = CGRectGetWidth(cellView.frame) / 3;
int x3 = x2 * 2;
int y1 = 5;
int y2 = CGRectGetHeight(cellView.frame) / 2 + padding;
int width = CGRectGetWidth(cellView.frame) / 3 - padding;
int sHeight = CGRectGetHeight(cellView.frame) / 2 - padding;
int bHeight = CGRectGetHeight(cellView.frame) - padding;
CGRect cell1 = CGRectMake(x1, y1, width, sHeight);
int row = indexPath.row;// - 1;
UILabel* timeLabel = [[UILabel alloc] initWithFrame: cell1];
timeLabel.backgroundColor = [UIColor clearColor];
timeLabel.text = [[self.tableData objectAtIndex: row] objectForKey: @"time"];
[cellView addSubview: timeLabel];
[cell.contentView addSubview: cellView];
答案 0 :(得分:5)
您正在创建新的UIView
和UILabel
,即使重复使用该单元格,结果会显示旧单元格下方的旧单元格。
这样做
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier: cellIdentifer];
if (!cell)
{
cell= [[UITableViewCell alloc] initWithStyle: UITableViewCellStyleSubtitle reuseIdentifier: cellIdentifer];
int offset = 5;
int rowHeight = 120;
UIView* cellView = [[UIView alloc] initWithFrame: CGRectMake(offset, offset, 320 - offset * 2, rowHeight - offset * 2)];
cellView.tag = 200;
cellView.backgroundColor = indexPath.row % 2 == 0 ? [UIColor colorWithWhite: 1.0 alpha: .8 ] : [UIColor colorWithWhite: .3 alpha: .8];
int padding = 5;
int x1 = 5;
int x2 = CGRectGetWidth(cellView.frame) / 3;
int x3 = x2 * 2;
int y1 = 5;
int y2 = CGRectGetHeight(cellView.frame) / 2 + padding;
int width = CGRectGetWidth(cellView.frame) / 3 - padding;
int sHeight = CGRectGetHeight(cellView.frame) / 2 - padding;
int bHeight = CGRectGetHeight(cellView.frame) - padding;
CGRect cell1 = CGRectMake(x1, y1, width, sHeight);
int row = indexPath.row;// - 1;
UILabel* timeLabel = [[UILabel alloc] initWithFrame: cell1];
timeLabel.backgroundColor = [UIColor clearColor];
timeLabel.tag = 300;
[cellView addSubview: timeLabel];
[cell.contentView addSubview: cellView];
}
UIView *view = [cell.contentView viewWithTag:200];
UILabel *timeLabel = (UILabel*)[view viewWithTag:300];
timeLabel.text = [[self.tableData objectAtIndex: row] objectForKey: @"time"];
我建议您创建一个custom UITableViewCell
答案 1 :(得分:0)
主要问题是使用cell = [[UITableViewCell alloc] initWithStyle: UITableViewCellStyleSubtitle reuseIdentifier: cellIdentifer];
方法,因此如果您不想更改任何内容,请使用此方法UITableViewCell *cell= [[UITableViewCell alloc] initWithStyle: UITableViewCellStyleSubtitle reuseIdentifier: nil];
这不是更好的方法,但你可以使用它。因为在这种情况下,您的单元格将不会被重用。一个更好的解决方案是根据您的选择制作自定义单元格并使用它。