What will be the numberOfRowsInSection return type for uitableview when XML data is retrieved?

问题

1. I have a NSMutableArray named as records and a NSArray.

2. Now I am retrieving an XML attribute and its value, using TBXML parser and inserting the attribute value in the NSArray.

3. This NSArray is an object of records.

What will be the numerberOfRowsInSection when I want to display the value of XML data in tableview cell?

This is my data retrieving procedure....

[records addObject:[NSArray arrayWithObjects:
    [TBXML textForElement:id],
    [TBXML textForElement:productNumber],
    [TBXML textForElement:name],
    [TBXML textForElement:availableStock],
    [TBXML textForElement:image],
    [TBXML textForElement:quantityOrderMin],
    [TBXML textForElement:dateCreated],
    [TBXML textForElement:dateUpdated],nil]];

And my XML data are....

<ProductData HASH="21106941">
    <id>1</id>
    <productNumber>a91cc0f4c7</productNumber>
    <name>Product 1</name>
    <seoTitle>product-1</seoTitle>
    <viewCount>0</viewCount>
    <availableStock>100.0</availableStock>
    <lowStock>0.0</lowStock>
    <image>5e928bbae358c93caedf6115fa7d178b.jpg</image>
    <quantityOrderMax>20.0</quantityOrderMax>
    <dateCreated>2011-10-06T16:08:45</dateCreated>
</ProductData>
<ProductData HASH="409555632">
    <id>2</id>
    <productNumber>d8287e2e51</productNumber>
    <name>Product 2</name>
    <seoTitle>product-2</seoTitle>
    <description>
    <p>Lorem ipsum dolor sit amet, consectetue...</p>
    </description>
    <viewCount>0</viewCount>
    <availableStock>100.0</availableStock>
    <image>8bbd8dfff3cdd28285d07810a4fe7c32.jpg</image>
    <quantityOrderMin>1.0</quantityOrderMin>
    <dateCreated>2011-10-06T16:08:45</dateCreated>
</ProductData>

I am being able to retrieve data in UITableviewCell, but it's displaying first two retrieved data of the NSArray because the number of rows are two in records array. but i want to set the numberOfRowsInsection will be according to the total number of attribute value retrieved by NSArray.

I have got the problem and I know the problem is here:

  - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
        NSLog(@"The number of row in the object array:  %d ",[records count]);
        return [records count];
    }

How can I fix it?

回答1:

#pragma mark tableview

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    int sectionCount = [records count];
    NSLog(@"section cout: %d",sectionCount);
    return sectionCount;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 1;
}

- (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.textLabel.font = [UIFont fontWithName:@"Helvetica" size:15.0];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;

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

        cellView = [[[UIView alloc] initWithFrame:CGRectMake(5,8,290, 120)] autorelease];
        cellView.backgroundColor = [UIColor clearColor];
        cellView.tag =10;
        [cell.contentView addSubview:cellView];

        imgView = [[UIImageView alloc] initWithFrame:CGRectMake(2, 40, 48, 48)];
        imgView.image = [UIImage imageNamed:@"productbox.png"];
        imgView.layer.borderColor = [UIColor blackColor].CGColor;
        imgView.layer.borderWidth = 2.0;
        imgView.tag = 5;
        [cellView addSubview:imgView];

        CGRect idLabelRect = CGRectMake(65, 0, 190, 18);
        idLabel = [[[UILabel alloc] initWithFrame:idLabelRect] autorelease];
        idLabel.textAlignment = UITextAlignmentLeft;
        idLabel.textColor = [UIColor blackColor];
        idLabel.font = [UIFont systemFontOfSize:12];
        idLabel.backgroundColor = [UIColor clearColor];
        idLabel.layer.borderColor = [UIColor grayColor].CGColor;
        idLabel.tag = 0;

        CGRect statusRect = CGRectMake(65, 22, 190, 22);
        statusLabel = [[[UILabel alloc] initWithFrame:statusRect] autorelease];
        statusLabel.textAlignment = UITextAlignmentLeft;
        statusLabel.textColor = [UIColor blackColor];
        statusLabel.font = [UIFont systemFontOfSize:12];
        statusLabel.backgroundColor = [UIColor clearColor];
        statusLabel.layer.borderColor = [UIColor grayColor].CGColor;
        statusLabel.tag = 1;

        CGRect orderDateRect = CGRectMake(65, 48, 190, 22);
        orderDate = [[[UILabel alloc] initWithFrame:orderDateRect] autorelease];
        orderDate.textAlignment = UITextAlignmentLeft;
        orderDate.textColor = [UIColor blackColor];
        orderDate.font = [UIFont systemFontOfSize:12];
        orderDate.backgroundColor = [UIColor clearColor];
        orderDate.layer.borderColor = [UIColor grayColor].CGColor;
        orderDate.tag = 2;

        CGRect byRect = CGRectMake(65, 75, 190, 22);
        byLabel = [[[UILabel alloc] initWithFrame:byRect] autorelease];
        byLabel.textAlignment = UITextAlignmentLeft;
        byLabel.textColor = [UIColor blackColor];
        byLabel.font = [UIFont systemFontOfSize:12];
        byLabel.backgroundColor = [UIColor clearColor];
        byLabel.layer.borderColor = [UIColor grayColor].CGColor;
        byLabel.tag = 3;

        CGRect totalRect = CGRectMake(65, 98, 190, 22);
        totalLabel = [[[UILabel alloc] initWithFrame:totalRect] autorelease];
        totalLabel.textAlignment = UITextAlignmentLeft;
        totalLabel.textColor = [UIColor blackColor];
        totalLabel.font = [UIFont systemFontOfSize:12];
        totalLabel.backgroundColor = [UIColor clearColor];
        totalLabel.layer.borderColor = [UIColor grayColor].CGColor;
        totalLabel.tag = 4;

        [cellView addSubview:idLabel];
        [cellView addSubview:statusLabel];
        [cellView addSubview:orderDate];
        [cellView addSubview:byLabel];
        [cellView addSubview:totalLabel];
    }

    cellView = (UIView *)[cell.contentView viewWithTag:10];
    idLabel = (UILabel *)[cellView viewWithTag:0];
    statusLabel = (UILabel *)[cellView viewWithTag:1];
    orderDate = (UILabel *)[cellView viewWithTag:2];
    byLabel = (UILabel *)[cellView viewWithTag:3];
    totalLabel = (UILabel *)[cellView viewWithTag:4];
    imgView = (UIImageView *)[cellView viewWithTag:5];
    idLabel.text = [NSString stringWithFormat:@"Order Id: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:0]];
    statusLabel.text = [NSString stringWithFormat:@"Status: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:1]];
    orderDate.text = [NSString stringWithFormat:@"Date: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:2]];
    byLabel.text =[NSString stringWithFormat:@"By: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:3]];
    totalLabel.text =[NSString stringWithFormat:@"Total: %@",[[records objectAtIndex:indexPath.section] objectAtIndex:4]];

    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    //Get the selected country
    NSString *selectedSection = [ NSString stringWithFormat:@"%@",[[records objectAtIndex:indexPath.section] objectAtIndex:0] ];
    dvController = [[OrderDetailsViewController alloc] initWithNibNameAndCurrentTweetUser:@"OrderDetailsViewController" bundle:nil:selectedSection];
    [self.navigationController pushViewController:dvController animated:YES];
    [dvController release];
    dvController = nil;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return 130;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    UIView *v = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 20)];
    [v setBackgroundColor:[UIColor blackColor]];

    UILabel* hdr = [[[UILabel alloc] initWithFrame:CGRectMake(10,0, tableView.bounds.size.width,20)] autorelease];
    hdr.textAlignment = UITextAlignmentLeft;
    hdr.font = [UIFont fontWithName:@"Arial-BoldMT" size:12];
    hdr.textColor = [UIColor whiteColor];
    hdr.backgroundColor = [UIColor blackColor];
    [v addSubview:hdr];

    hdr.text = [NSString stringWithFormat:@"Order #%@",[[records objectAtIndex:section] objectAtIndex:0]];
    return v;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    return 20;
}

回答2:

There are two ways to approach this problem.

1. The right way would be to take a look at this TBXML tutorial regarding parsing. This shows you what to do to parse each of the attributes out of each ProductData element entry.

2. The brute force method (which isn't one that I would do) would be to parse through your "records" array, which looks like this:

   @"<id>1</id>",@"<productNumber>a91cc0f4c7</productNumber>",@"<name>Product 1</name>",@"<seoTitle>product-1</seoTitle>",@"<viewCount>0</viewCount>",
   @"<availableStock>100.0</availableStock>",@"<lowStock>0.0</lowStock>",@"<image>5e928bbae358c93caedf6115fa7d178b.jpg</image>",
   @"<basePrice>10.0</basePrice>",@"<costPrice>0.0</costPrice>",@"<height>1.0</height>",@"<width>1.0</width>",@"<depth>1.0</depth>",@"<weight>2.0</weight>"
   

   and so on via this fast enumeration

   for(NSString * elementText in records)
   {
       NSLog( @"%@", elementText );
       // and search for "<" and ">" and strip out the name and the value using
       // substring
   }
   

来源：https://stackoverflow.com/questions/7806803/what-will-be-the-numberofrowsinsection-return-type-for-uitableview-when-xml-data