我在使用dequeueReusableCellWithIdentifier
方法时遇到问题。每当我使用这个单元格时,一个单元格会显示自己的值和不属于它的值。这first和second图像显示的问题,而third图像显示正确的数据。这个问题似乎是由旧价值没有被删除和新的价值被添加到顶部,如果它。这似乎很奇怪。UITableViewCell使用来自其他单元格的值
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell =nil ;
if(indexPath.row==0){
cell = [[[UITableViewCell alloc]init]autorelease];
}else {
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
}
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
NSMutableArray *rowArray = [results objectAtIndex:indexPath.section];
NSString *value=nil;
if (indexPath.section==0) {
// the row in the 0th section is patient's sticky
value = [rowArray objectAtIndex:indexPath.row];
cell.textLabel.text = value;
}else {
//the row in the 1th section are lab tests
//here rowArray is tableRecords
NSArray *rowrecordTemp = [rowArray objectAtIndex:indexPath.row];
UILabel *label= [[UILabel alloc]initWithFrame:CGRectMake(5, 0, 130, tableView.rowHeight-5) ];
value = [rowrecordTemp objectAtIndex:0];
label.text= value;
[cell.contentView addSubview:label];
[label release];
label = nil;
label = [[UILabel alloc] initWithFrame:CGRectMake(140, 0, 50.0,
tableView.rowHeight-10)];
value = [rowrecordTemp objectAtIndex:1];
label.text = value;
[cell.contentView addSubview:label];
[label release];
label = nil;
label = [[UILabel alloc] initWithFrame:CGRectMake(190, 0, 90, tableView.rowHeight-10)];
value = [rowrecordTemp objectAtIndex:2];
label.text = value;
[cell.contentView addSubview:label];
[label release];
label = nil;
NSLog(@"%@\t\t%@\t\t\t\t\n%@",[rowrecordTemp objectAtIndex:0] ,[rowrecordTemp objectAtIndex:1],[rowrecordTemp objectAtIndex:2]);
}
NSString *fontname = cell.textLabel.font.fontName;
cell.textLabel.font = [UIFont fontWithName:fontname size:16];
cell.textLabel.numberOfLines = 0;
return cell;
}
嗨Rengers。谢谢你的帮助。按照您的建议解决问题,我采取了第二种方法来更改旧标签的文本。 – 2010-04-28 03:45:48