Question

i am creating button dynamically. and creation action methods by

  [newButton addTarget:self action:@selector(goToNew:)forControlEvents:UIControlEventTouchUpInside];

i want to send argument (indexpath.row) from tableview , but not want to use tag.. because i need that tag will remain same for all the buttons , how can i pass argument in button action ?

actually i am adding button in each tableview cell , and i want action for all those buttons , but if i use tag = indexpath.row and and use it with action, it works but problem of overlaying button happen.hence i want tag would be constant.

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

static NSString *CellIdentifier = @"Cell";
UIButton *btn;

UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];

    btn = [UIButton buttonWithType:UIButtonTypeCustom];
    [btn addTarget:self action:@selector(goToNew:) forControlEvents:UIControlEventTouchUpInside];
    btn.tag = 55;
    [cell.contentView addSubview:btn];

}
else {
    btn = (id)[cell.contentView viewWithTag:55];

}

return cell;

}

- (void) goToNew:(id)sender   

{
UIButton *b = (UIButton *)sender;
UITableViewCell cell = (UITableViewCell)[b superview];
int row = [msgTableView indexPathForCell:cell].row;
(@”row is :::%d”,row);

}

Answer 1

By doing following code, you will get the indexPath.row and no need to set the button tag.

- (IBAction)goToNew:(id)sender 
{
    UIButton *btn = (UIButton*) sender;
    UITableViewCell *cell = (UITableViewCell*) [btn superview];
    NSIndexPath *indexPath = [tableView indexPathForCell:cell]; 
    int row = indexPath.row;
}