iOS UITableViewCells rows recycled and tag not working

Question

I would like to seek some help in setting tag for buttons in cells. This is a question with a link to the previous I posted : iOS Using NSDictionary to load data into section an

Answer 1

I could not see your cell.renewButton being assigned a selector method (the method that should be triggered on tapping the button).

[cell.renewButton addTarget:self action:@selector(renewButtonPressed:) forControlEvents:UIControlEventTouchUpInside];

Also, I would specify a tag number with an offset, as tag of 0 is almost like not tagging at all. First row of tableView will give indexPath.row = 0.

Above your code,

#define OFFSET 100 /* Or any number greater than 0 */

In cellForRowAtIndexPath,

...
[cell.renewButton addTarget:self action:@selector(renewButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
cell.renewbutton.tag = indexPath.row + OFFSET;
...

In the renewButtonPressed method,

-(void)renewButtonPressed:(id)sender
{
    tappedNum = [sender tag] - OFFSET;
    /* do your stuff */
}

tappedNum will give you the row that the button is tapped, starting with 0.