Custom UITableViewCell button action?

Question

I've been looking around to find a solution to this, but can't seem to find one that works for me. I have a custom cell with a button inside. My problem is how do I pass the indexPath to the action method?

Right now I'm doing

 [cell.showRewards addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];

In my cellForRowAtIndexPath method and my method is:

-(IBAction)myAction:(id)sender{
NSIndexPath *indexPath = [self.tableView indexPathForCell:(MyCustomCell *)[sender superview]];
NSLog(@"Selected row is: %d",indexPath.row);
}

Any tips? Thanks.

Answer 1

In custom UITableViewCell class:

[self.contentView addSubview:but_you]; 

In cellForRowAtIndexPath method you can write:

[cell.showRewards addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];    
cell.showRewards.tag = indexPath.row;

Answer 2

cell.showRewards.tag = indexPath.row;

---

-(IBAction)myAction:(id)sender
{
UIButton *btn = (UIButton *)sender;
int indexrow = btn.tag;
NSLog(@"Selected row is: %d",indexrow);
}

Answer 3

Just want to add what I believe is the best solution of all: a category on UIView.

It's as simple as this:

- (void)somethingHappened:(id)sender
{
    NSIndexPath *indexPath = [self.tableView indexPathForCell:[sender parentCell]];

    // Your code here...
}

Just use this category on UIView:

@interface UIView (ParentCell)

- (UITableViewCell *)parentCell;

@end

@implementation UIView (ParentCell)

- (UITableViewCell *)parentCell
{
    UIView *superview = self.superview;
    while( superview != nil ) {
        if( [superview isKindOfClass:[UITableViewCell class]] )
            return (UITableViewCell *)superview;

        superview = superview.superview;
    }

    return nil;
}

@end

Answer 4

While I feel setting tag for the button is one way to go. You might need to write code to make sure each time the cell gets reused, the appropriate tag gets updated on the button object.

Instead I have a feeling this could work. Try this -

-(IBAction)myAction:(id)sender
{
CGPoint location            = [sender locationInView:self.tableView];
NSIndexPath *indexPath      = [self.tableView indexPathForRowAtPoint:location];
UITableViewCell *swipeCell  = [self.tableView cellForRowAtIndexPath:indexPath];

NSLog(@"Selected row: %d", indexPath.row);
//......
}

Essentially what you are doing is getting the coordinates of where the click happened with respect to your tableView. After getting the coordinates, tableView can give you the indexPath by using the method indexPathForRowAtPoint:. You are good to go after this...

Voila, you have not just the indexPath but also the actual cell where the click happened. To get the actual data from your datasource (assuming its NSArray), you can do -

[datasource objectAtIndex:[indexPath row]];