UITableViewCell每行中的UIButton轻松获得cell的IndexPath

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0.0, 0.0, 100, 100);
// set the button's target to this table view controller so we can interpret touch events and map that to a NSIndexSet
[button addTarget:self action:@selector(checkButtonTapped:event:) forControlEvents:UIControlEventTouchUpInside];
cell.accessoryView = button;

- (void)checkButtonTapped:(id)sender event:(id)event
{
	NSSet *touches = [event allTouches];
	UITouch *touch = [touches anyObject];
	CGPoint currentTouchPosition = [touch locationInView:self.tableView];
    
	NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint: currentTouchPosition];
	if (indexPath != nil)
	{
		
	}
}