Handle button event in UITableviewcell - iphone

Question

I am trying to get a number from an array and store it in a button in UITableview cell. When I tap the button, I should be able to get the number. Whats the right way to get the information from the sender in the button click event
This is what I tried.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil )
{
UIButton *button = [[[UIButton alloc]init]autorelease];
CGRect frame = CGRectMake(180, 10, 33, 33);
button.frame = frame;
button.tag = 1001;
UIImage *image = [[[UIImage alloc]init]autorelease];
image = [UIImage imageNamed:#"icon.png"];
[button setBackgroundImage:image forState:UIControlStateNormal];
[button addTarget:self action:#selector(onIconTapped) forControlEvents:UIControlEventTouchUpInside];
button.backgroundColor = [UIColor clearColor];
[button setHidden:YES];
cell.accessoryView = button;
}
int myContactID = contact.contactID;
NSLog(#"My No. %d", myContactID);
NSNumber *mySelectedNumber = [NSNumber numberWithInt:myContactID];
UIButton *myButton = (UIButton *)[cell.accessoryView viewWithTag:1001];
for(int i = 0; i< [myContactsArray count]; i++){
if([[[myContactsArray objectAtIndex:i]valueForKey:#"RecordID"] isEqualToNumber:mySelectedNumber]){
[myButton setHidden:NO];
NSString *myString;
myString = [[myContactsArray objectAtIndex:i]valueForKey:#"MYNumber"];
[myButton setTitle:myString forState:UIControlStateNormal];
myButton.titleLabel.font = [UIFont systemFontOfSize:0];
NSLog(#"my number %#", myString);
NSLog(#"Button tag %#", myButton.currentTitle);
break;
}
else{
[myButton setHidden:YES];
}
}
}
-(void)onIconTapped:(id)sender{
}

Answer 1

-(void)onIconTapped:(id)sender{
if (sender.tag == 1001){
NSString *title = sender.currentTitle;
NSNumberFormatter *formatter = [[[NSNumberFormatter alloc] init] autorelease];
[formatter setNumberStyle:NSNumberFormatterDecimalStyle];
NSNumber *titleNumber = [numberFormatter numberFromString:title];
}
}

Answer 2

This approach is from iOS Recipes (Matt Drance): You can get the cell with converting the origin of the button to the tableView (convertPoint:toView:) and then call
[[self tableView] indexPathForRowAtPoint: convertedPoint];

Answer 3

1.
[button addTarget:self action:#selector(onIconTapped:) `enter code here`forControlEvents:UIControlEventTouchUpInside];
2.
myString = [[myContactsArray objectAtIndex:i]valueForKey:#"MYNumber"];
button.tag = i;`
3.
-(void)onIconTapped:(id)sender{
Contact *contact = [myContactsArray objectAtIndex:sender.tag];
}