CODEWITHSUNDEEP
iosiphoneobjective-cuitableview
Mayank Jain
Mayank Jain

Reputation: 5754

how to create different view for last visible cell of tableview

I want to show last visible cell with different background color (say green). I am using this code, It works good until I scroll up/down. When I scroll up/down it gives many cell with green background. (I guess this happening due to "dequeueReusableCellWithIdentifier"). Can anyone help me out where I am doing wrong or what is the best way of doing this.

NSArray* indexPaths = [tableView indexPathsForVisibleRows];
if (indexPath.row==[indexPaths count]-1)
{
    UIView *v=[[UIView alloc]initWithFrame:cell.bounds];
    v.backgroundColor=[UIColor greenColor];
    cell.backgroundView=v;
}

Thanks in advance.

Upvotes: 1

Views: 236

Answers (3)

user3694239
user3694239

Reputation: 9

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

    if (indexPath.row==[yourtableviewarray count]-1)
    {
        UIView *v=[[UIView alloc]initWithFrame:cell.bounds];
        v.backgroundColor=[UIColor greenColor];
        cell.backgroundView=v;
    }

}

Upvotes: 0

Eric G
Eric G

Reputation: 1429

Firstly, you shouldn't be allocating anything in cellForRowAtIndexPath - it is bad for performance. You should only be configuring views and controls that already exist for every cell. Because cells are reused, your cell that you add a background view to will get re-used too... and its background view.

In your case, you probably just want to set:

if (lastCell)
    cell.contentView.backgroundColor = [UIColor greenColor];
else
    cell.contentView.backgroundColor = [UIColor clearColor]; //or whatever color

contentView is already a view every UITableViewCell has for free, so just use that for background color. Apple probably intended it to be used for this case, amongst others.

Upvotes: 2

bsarr007
bsarr007

Reputation: 1964

You should nil the background view before the test.

cell.backgroundView = nil;

if (indexPath.row==[indexPaths count]-1)
{
    UIView *v=[[UIView alloc]initWithFrame:cell.bounds];
    v.backgroundColor=[UIColor greenColor];
    cell.backgroundView=v;
}

Upvotes: 0

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