为什么tableview数据重叠？我已附上我的代码。
如果我再次解释我的代码，那么
xml数据位于表视图中显示的records数组中。
第一次执行程序时，数据在正确的位置，但是当我开始垂直滚动时，数据开始显示在各个单元格中。假设第一个单元格显示在最后一个单元格中，第二个单元格数据显示在第一个单元格中.....等等。
注意：对于重叠问题，我也使用了switch和viewwithtag，但现在当我开始在tableview上滚动时，cell数据仍开始在错误的UITableview.中显示
// Customize the appearance of table view cells.
- (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];
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:15.0];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
NSLog(@"%d",indexPath.section);
switch (indexPath.section) {
case 0:
order_cellView = [[UIView alloc] initWithFrame:CGRectMake(5, 5, cell.frame.size.width,cell.frame.size.height) ];
order_cellView.backgroundColor = [UIColor redColor];
order_cellView.tag =1000;
NSLog(@"index path 0");
CGRect frame;
frame.origin.x =0;
frame.origin.y = 10;
frame.size.height = 30;
frame.size.width = 230;
CGRect valueFrame;
valueFrame.origin.x =237;
valueFrame.origin.y = 5;
valueFrame.size.height = 30;
valueFrame.size.width = 80;
for(int m=0;m<numberOfProduct;m++){
NSLog(@"for loop here");
productLabel = [[UILabel alloc] initWithFrame:frame];
productLabel.tag = m;
productLabel.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
productLabel.backgroundColor = [UIColor clearColor];
productLabel.lineBreakMode = UILineBreakModeCharacterWrap;
productLabel.numberOfLines = 2;
productLabel.textAlignment = UITextAlignmentCenter;
[order_cellView addSubview:productLabel];
productLabel.text = [NSString stringWithFormat:@"%@ x %@ x %@",[[products objectAtIndex:m] objectAtIndex:1],[[products objectAtIndex:m] objectAtIndex:2],[[products objectAtIndex:m] objectAtIndex:3]];
frame.origin.y += 45;
productValueLabel = [[UILabel alloc] initWithFrame:valueFrame];
productValueLabel.tag = m+2;
productValueLabel.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
productValueLabel.backgroundColor = [UIColor clearColor];
productValueLabel.lineBreakMode = UILineBreakModeCharacterWrap;
productValueLabel.numberOfLines = 2;
productValueLabel.textAlignment = UITextAlignmentCenter;
productValueLabel.text = [NSString stringWithFormat:@"%@",[[products objectAtIndex:m] objectAtIndex:5]];
[order_cellView addSubview:productValueLabel];
valueFrame.origin.y += 45;
}
[cell.contentView addSubview:order_cellView];
break;
case 1:
email_cellView = [[UIView alloc] initWithFrame:CGRectMake(5, 5, cell.frame.size.width,cell.frame.size.height) ];
email_cellView.backgroundColor = [UIColor clearColor];
email_cellView.tag =1001;
emailAdressLabel = [[UILabel alloc] initWithFrame:CGRectMake(2, 0, cell.frame.size.width, cell.frame.size.height)];
emailAdressLabel.tag = 100;
emailAdressLabel.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
emailAdressLabel.backgroundColor = [UIColor clearColor];
emailAdressLabel.lineBreakMode = UILineBreakModeCharacterWrap;
emailAdressLabel.numberOfLines = 2;
emailAdressLabel.textAlignment = UITextAlignmentLeft;
emailAdressLabel.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:6]];
[email_cellView addSubview:emailAdressLabel];
[cell.contentView addSubview:email_cellView];
break;
case 2:
phoneNumberLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 2, cell.frame.size.width, cell.frame.size.height)];
phoneNumberLabel.tag = 101;
phoneNumberLabel.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
phoneNumberLabel.backgroundColor = [UIColor clearColor];
phoneNumberLabel.lineBreakMode = UILineBreakModeCharacterWrap;
phoneNumberLabel.numberOfLines = 1;
phoneNumberLabel.textAlignment = UITextAlignmentLeft;
phoneNumberLabel.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:7]];
[cell.contentView addSubview:phoneNumberLabel];
break;
case 3:
billingDetails = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 160, cell.frame.size.height)];
billingDetails.tag = 102;
billingDetails.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
billingDetails.backgroundColor = [UIColor clearColor];
billingDetails.lineBreakMode = UILineBreakModeCharacterWrap;
billingDetails.numberOfLines = 4;
billingDetails.textAlignment = UITextAlignmentLeft;
billingDetails.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:4]];
[cell.contentView addSubview:billingDetails];
break;
case 4:
shippingDetails = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 160, cell.frame.size.height)];
shippingDetails.tag = 103;
shippingDetails.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
shippingDetails.backgroundColor = [UIColor clearColor];
shippingDetails.lineBreakMode = UILineBreakModeCharacterWrap;
shippingDetails.numberOfLines = 4;
shippingDetails.textAlignment = UITextAlignmentLeft;
shippingDetails.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:5]];
[cell.contentView addSubview:shippingDetails];
break;
case 5:
orderStatus = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, cell.frame.size.width, cell.frame.size.height)];
orderStatus.tag = 104;
orderStatus.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
orderStatus.backgroundColor = [UIColor clearColor];
orderStatus.lineBreakMode = UILineBreakModeCharacterWrap;
orderStatus.numberOfLines = 1;
orderStatus.textAlignment = UITextAlignmentLeft;
orderStatus.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:19]];
[cell.contentView addSubview:orderStatus];
break;
case 6:
deleteOrder = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, cell.frame.size.width, cell.frame.size.height)];
deleteOrder.tag = 110;
deleteOrder.font = [UIFont fontWithName:@"Arial-BoldMT" size:13];
deleteOrder.backgroundColor = [UIColor clearColor];
deleteOrder.lineBreakMode = UILineBreakModeCharacterWrap;
deleteOrder.numberOfLines = 1;
deleteOrder.textAlignment = UITextAlignmentLeft;
deleteOrder.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:19]];
[cell.contentView addSubview:deleteOrder];
break;
default:
break;
}
}
switch (indexPath.section) {
case 0:
order_cellView = (UIView *)[cell.contentView viewWithTag:1000];
for(int m=0;m<numberOfProduct;m++){
productLabel = (UILabel *)[order_cellView viewWithTag:m];
productValueLabel = (UILabel *)[order_cellView viewWithTag:m+2];
}
if(indexPath.section == 0){
for(int m=0;m<numberOfProduct;m++){
productLabel.text = [NSString stringWithFormat:@"%@ x %@ x %@",[[products objectAtIndex:m] objectAtIndex:1],[[products objectAtIndex:m] objectAtIndex:2],[[products objectAtIndex:m] objectAtIndex:3]];
productValueLabel.text = [NSString stringWithFormat:@"%@",[[products objectAtIndex:m] objectAtIndex:5]];
}
}
break;
case 1:
email_cellView = (UIView *)[cell.contentView viewWithTag:1001];
emailAdressLabel = (UILabel *)[email_cellView viewWithTag:100];
emailAdressLabel.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:6]];
break;
case 2:
phoneNumberLabel = (UILabel *)[cell.contentView viewWithTag:101];
phoneNumberLabel.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:7]];
break;
case 3:
billingDetails = (UILabel *)[cell.contentView viewWithTag:102];
billingDetails.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:4]];
break;
case 4:
shippingDetails = (UILabel *)[cell.contentView viewWithTag:103];
shippingDetails.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:5]];
break;
case 5:
orderStatus = (UILabel *)[cell.contentView viewWithTag:104];
orderStatus.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:19]];
break;
case 6:
deleteOrder = (UILabel *)[cell.contentView viewWithTag:110];
deleteOrder.text = [NSString stringWithFormat:@"%@",[[records objectAtIndex:0] objectAtIndex:19]];
break;
default:
break;
}
return cell;
}
最佳答案
我认为您的主要问题是您有7种不同的“类型”单元格，但只有一种“重用标识符”。这意味着订单单元可以稍后作为删除订单单元重用。但是，当单元被重用时，它不一定具有全部显示所需的所有元素。
例如，电子邮件单元格的标签为1001，删除单元格的标签为110，但反之则不然。
关于ios - 为什么UITableview数据重叠？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/8077547/