iOS get specific UITableViewCell

Question

I have a UIButton in a custom UITableViewCell. This button triggers an event when clicked.

[myButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside]; 

The method which is called when the button is clicked is :

 - (void) buttonClicked:(id)sender
{

UIButton *b = (UIButton*)sender;

.....

} 

My question is, how can I get an instance of the cell in which the button is placed?

Answer 1

 UITableViewCell *cell = (UITableViewCell*)[[b superview] superview];

If you added the button on cell as subview then superview of button will be contentView and superview of contentView will UITableViewCell

Answer 2

- (void) buttonClicked:(id)sender
{


  UIButton *b = (UIButton*)sender;    
  UITableViewCell *tableViewCell =(UITableViewCell*) [b superview];  

 //if you added the UIButton as a subview of UITableViewCell contendView, use this
  UITableViewCell *tableViewCell =(UITableViewCell*) [[b superview] superview]; 

} 

Answer 3

You can set tag to button when you are adding the buttons in table view cell. It will be better if you use same indexPath of able view cell. Then from [sender tag] you able to get the indexPath value.

Answer 4

I'd suggest you not just to put a button into a UITableViewCell. What you should better to is to subclass UITableViewCell and make UITableViewButtonCell that will cal a delegate callback like this: - (void) tableViewButtonCellDidButtonTap:(UITableViewCell*) buttonCell This will be more SOLID solution.

The case with UIButton *b = (UIButton*)sender;
UITableViewCell *tableViewCell =(UITableViewCell*) [b superview]; will only work if your button lies DIRECTLY insade the UITableviewCell that can possibly be not a case.

Answer 5

As you rightly say, the button is "in" the cell - in the sense that it is a subview, at some depth, of some cell. So simply walk up the view hierarchy until you reach the cell:

- (void) buttonClicked:(id)sender {
    UIView* v = sender;
    while (![v isKindOfClass:[UITableViewCell class]])
        v = v.superview;
    // now v is the cell
}