Question

I have created sample application that insert 12 rows in tableview.And inserted fine.When after inserted my rows i dont want any changes in text during scrolling of tableview.So i checked with indexpath row has value of UITableViewCell , if it has values means return that cell otherwise we created new UITableViewCell.

My sample code is below

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;

}

// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section  {
NSLog(@"GlobalCount = %d",GlobalCount);
return GlobalCount;

}

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

UITableViewCell *obj = (UITableViewCell*)[tableView cellForRowAtIndexPath:indexPath];
if(obj!=nil)
{
    NSLog(@"cell indexpath row = %d",indexPath.row);
    NSLog(@"cell text = %d",obj.textLabel.text);
    return obj;
}

else {
    NSLog(@"obj==nil");
}


static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tv dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;

}

if([DataTable count]>0)
    cell.textLabel.text = [DataTable objectAtIndex:0];
// Configure the cell.
return cell;

}

What my objective is , i dont want update any text (or UITableViewCell)for already created indexpath rows(of cell).So i can check this in cellForRowAtIndexPath , but it always return nil.If i am missing anything ?

I checked using this line

UITableViewCell *obj = (UITableViewCell*)[tableView cellForRowAtIndexPath:indexPath];
if(obj!=nil)

Plz help me?

Thanks in advance……

Answer 1

Let the table view decide id it need to update the cell or not. Just remove all the firsdt part of your code and everything will run smoothly.

Don’t hesitate to read the UITableView doc.