谁能告诉我为什么表格视图数据在滚动之前不显示？

Question

在我的表视图中，我设置了要显示的 xml 数据，但在滚动之前它不会显示所有值。当我获取 xml 数据时，我已经重新加载了 tableview。我还使用了 [cell.contenView viewWithTag:tagnumber]; 但现在它仍然不起作用......请帮助我......

数据正在到来并使用 NSLog 我可以获取该值，但直到滚动后才会显示。有人认为我必须提到我可以看到我的单元格视图和图像视图，但不显示标签数据。

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

static NSString *MyIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
    //cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease];
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault  reuseIdentifier:MyIdentifier] autorelease];
    cell.textLabel.font = [UIFont fontWithName:@"Helvetica" size:15.0];
    cell.selectionStyle = UITableViewCellSelectionStyleBlue;

    UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow.png"]];
    cell.accessoryView = imageView;
    tableView.separatorColor = [UIColor clearColor];
    tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;

          // THIS IS A VIEW ABOVE MY CELL NAME: cellView    

    cellView = [[[UIView alloc] initWithFrame:CGRectMake(0,0,290, 120)] autorelease];
    cellView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"order_description_bg.png"]];
    cellView.tag =10;

         // THIS IS A IMAGEVIEW ABOVE MY cellView NAME: imgView

    imgView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 15, 39, 36)];
    imgView.image = [UIImage imageNamed:@"order_image.png"];
    imgView.layer.borderColor = [UIColor blackColor].CGColor;
    imgView.layer.borderWidth = 0.0f;
    imgView.tag = 5;

           // THIS IS A LABEL ABOVE MY cellView NAME: statusLabel

            CGRect statusRect = CGRectMake(65, 0, 190, 18);
    statusLabel = [[[UILabel alloc] initWithFrame:statusRect] autorelease];
    statusLabel.textAlignment = UITextAlignmentLeft;
    statusLabel.textColor = [UIColor blackColor];
    statusLabel.font = [UIFont systemFontOfSize:12];
    statusLabel.backgroundColor = [UIColor greenColor];
    statusLabel.tag = 1;

    [cell.contentView addSubview:cellView];
    [cellView addSubview:statusLabel];
    [cellView addSubview:imgView];

}


  //  [cell.contentView superview];
cellView = (UIView *)[cell.contentView viewWithTag:10];
imgView = (UIImageView *)[cellView viewWithTag:5];
statusLabel = (UILabel *)[cellView viewWithTag:1];

if(searching == YES && x<=inumOfRowAfterSearch){
        NSLog(@"[[searchData objectAtIndex:m] intValue] is : %d",[[searchData objectAtIndex:inumOfRowAfterSearch] intValue]);
            y = [[searchData objectAtIndex:inumOfRowAfterSearch] intValue];

    cellView = (UIView *)[cell.contentView viewWithTag:10];
    imgView = (UIImageView *)[cellView viewWithTag:5];
    statusLabel = (UILabel *)[cellView viewWithTag:1];

    if(pendingOrder == NO && todaysOrder == NO && x<=inumOfRowAfterSearch){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:y] objectAtIndex:1]];
     }
    else if(pendingOrder == YES && todaysOrder == NO && x<=inumOfRowAfterSearch){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:y] objectAtIndex:1]];
    }
}
else{

    cellView = (UIView *)[cell.contentView viewWithTag:10];
    imgView = (UIImageView *)[cellView viewWithTag:5];
    statusLabel = (UILabel *)[cellView viewWithTag:1];

    if(pendingOrder == NO && todaysOrder == NO){
      statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:1]];
        NSLog(@"status lable value: %@",statusLabel.text);
        }
    else if(pendingOrder == YES && todaysOrder == NO){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[pendingRecords objectAtIndex:indexPath.section] objectAtIndex:1]];
        }
}
return cell;
}

在滚动表格之前。

滚动桌面视图后

Answer 1

以下代码并不是每个条件都必需的，因为您已在条件之外编写了代码。看起来重复。

cellView = (UIView *)[cell.contentView viewWithTag:10];
imgView = (UIImageView *)[cellView viewWithTag:5];
statusLabel = (UILabel *)[cellView viewWithTag:1];

说到你的问题，它似乎最初会跳过 if 和 else if 条件。还要注释 NSLog 并在条件的 else 部分中写入 NSLog 。

编辑：

//  [cell.contentView superview];
cellView = (UIView *)[cell.contentView viewWithTag:10];
imgView = (UIImageView *)[cellView viewWithTag:5];
statusLabel = (UILabel *)[cellView viewWithTag:1];

if(searching == YES && x<=inumOfRowAfterSearch){
    NSLog(@"[[searchData objectAtIndex:m] intValue] is : %d",[[searchData objectAtIndex:inumOfRowAfterSearch] intValue]);
    y = [[searchData objectAtIndex:inumOfRowAfterSearch] intValue];

    if(pendingOrder == NO && todaysOrder == NO ){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:y] objectAtIndex:1]];
    }
    else if(pendingOrder == YES && todaysOrder == NO ){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:y] objectAtIndex:1]];
    }
    else
    {
        statusLabel.text = [NSString stringWithFormat:@"Status: None"];
    }
}
else{
    if(pendingOrder == NO && todaysOrder == NO){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:1]];
        NSLog(@"status lable value: %@",statusLabel.text);
    }
    else if(pendingOrder == YES && todaysOrder == NO){
        statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[pendingRecords objectAtIndex:indexPath.section] objectAtIndex:1]];
    }
    else
    {
        statusLabel.text = [NSString stringWithFormat:@"Status: None"];
    }
}
return cell;