Table cell reusebiliy issue in ios - ios

Question

I have added 2 button in a row of table view, for all the rows, and these button clicked as it first time appear in table view , when I scroll the table list the button tapping disable,
here is my code
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ImageOnRightCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell.selectionStyle = UITableViewCellSelectionStyleGray;
cell.userInteractionEnabled = NO;
UIButton *finalPriceBtn=[UIButton buttonWithType:UIButtonTypeCustom];
UIButton *finalPriceBtn1=[UIButton buttonWithType:UIButtonTypeCustom];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
int i=indexPath.row;
finalPriceBtn.backgroundColor=[UIColor redColor];
finalPriceBtn.tag=MAINLABEL_TAG;
finalPriceBtn.frame = CGRectMake(200, 0.0, 100, 50);
[finalPriceBtn addTarget:self action:#selector(goBtnClk:) forControlEvents:UIControlEventTouchUpInside];
finalPriceBtn.titleLabel.font=[UIFont systemFontOfSize:12];
finalPriceBtn.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleHeight;
[finalPriceBtn setImage:[UIImage imageNamed:#"man.jpg"] forState:UIControlStateNormal ];
[cell.contentView addSubview:finalPriceBtn];
finalPriceBtn1.backgroundColor=[UIColor redColor];
finalPriceBtn1.tag=SECONDLABEL_TAG;
finalPriceBtn1.frame = CGRectMake(50.0, 0.0, 80.0, 45.0);
[finalPriceBtn1 addTarget:self action:#selector(goBtnClk:) forControlEvents:UIControlEventTouchUpInside];
finalPriceBtn1.titleLabel.font=[UIFont systemFontOfSize:12];
finalPriceBtn1.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleHeight;
[finalPriceBtn1 setImage:[UIImage imageNamed:#"bulk-female.jpg"] forState:UIControlStateNormal ];
[cell.contentView addSubview:finalPriceBtn1];
}
else
{
finalPriceBtn = (UIButton *)[cell.contentView viewWithTag:MAINLABEL_TAG];
finalPriceBtn1 = (UIButton *)[cell.contentView viewWithTag:SECONDLABEL_TAG];
}
return cell;
}

Answer 1

It is happening because, each time you are scrolling the tableview, your cells are reused and in that case cell is not nil and the code above the code before the cell==nil, makes the userInteractionEnabled to NO. That's why, your button is not clickable.
First time those buttons are clickable because they were not allocated, I mean the cell was not allocated and setting any attribute to non-allocated entity makes no effect. Hope you got the point.