UITableView indexPath.row value error for button action - iphone

Question

I have a UITableView. There is a button in the right side on each row. Now the problem is any button i tap, it returns me the value of indexPath.row is 0. But when i tap a button it should return me the corresponding value of indexPath.row. I am working in iOS 7. Where is the mistake i am doing?
Here is the code for creating buttons on cell:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSInteger index = [indexPath row];
UISegmentedControl *renameButton = nil;
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
renameButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:#"Rename"]];
[renameButton setTag:6];
[renameButton addTarget:self action:#selector(renameButtonClicked:) forControlEvents:UIControlEventValueChanged];
[renameButton setSegmentedControlStyle:UISegmentedControlStyleBar];
[renameButton setMomentary:YES];
[renameButton setTintColor:[UIColor lightGrayColor]];
[cell.contentView addSubview:renameButton];
[renameButton release];
return cell;
Here is the code for the selector method:
- (void)renameButtonClicked:(id)sender {
isInEditMode = !isInEditMode;
[self setToolbarUserInterface];
[self setTableViewUserInterface];
while ([selectedItems count] > 0) {
[selectedItems removeLastObject];
}
UIButton *button = (UIButton *)sender;
UITableViewCell *cell = (UITableViewCell *)[[button superview] superview];
int index = [[self.tableView indexPathForCell:cell] row];
NSLog(#"Index value : %d",index);
NSString *newPath = [path stringByAppendingPathComponent:[items objectAtIndex:index]];
TextInputViewController *textInput = [[TextInputViewController alloc] init];
[textInput setPath:newPath Parent:parent andType:5];
[self.navigationController pushViewController:textInput animated:YES];
}

Answer 1

You don't get UITableViewCell by calling:
UITableViewCell *cell = (UITableViewCell *)[[button superview] superview];
Try add one more superview to access the cell:
UITableViewCell *cell = (UITableViewCell *)[[[button superview] superview] superview];
The structure the button layout on the table view is:
UITableViewCellContentView - [sender superview]
UITableViewCellScrollView - [[sender superview] superview]
UITableViewCell - [[[sender superview] superview] superview]
Hope this help

Answer 2

Use associated objects. This should work:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSInteger index = [indexPath row];
UISegmentedControl *renameButton = nil;
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
renameButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:#"Rename"]];
[renameButton setTag:6];
[renameButton addTarget:self action:#selector(renameButtonClicked:) forControlEvents:UIControlEventValueChanged];
[renameButton setSegmentedControlStyle:UISegmentedControlStyleBar];
[renameButton setMomentary:YES];
[renameButton setTintColor:[UIColor lightGrayColor]];
[cell.contentView addSubview:renameButton];
objc_setAssociatedObject(renameButton, "cell", cell, OBJC_ASSOCIATION_ASSIGN);
[renameButton release];
return cell;
Selector method:
- (void)renameButtonClicked:(id)sender {
isInEditMode = !isInEditMode;
[self setToolbarUserInterface];
[self setTableViewUserInterface];
while ([selectedItems count] > 0) {
[selectedItems removeLastObject];
}
UITableViewCell *cell = objc_getAssociatedObject(sender, "cell");
int index = [[self.tableView indexPathForCell:cell] row];
NSLog(#"Index value : %d",index);
NSString *newPath = [path stringByAppendingPathComponent:[items objectAtIndex:index]];
TextInputViewController *textInput = [[TextInputViewController alloc] init];
[textInput setPath:newPath Parent:parent andType:5];
[self.navigationController pushViewController:textInput animated:YES];
}
And don't forget to import runtime.h
#import <objc/runtime.h>

Answer 3

My approach would be this :
Create a custom button class which inherits a class depending on ui element you're using which triggers an action, in your case it's UISegmentedControl.
Then add a property to hold a reference to its index path.
While you are creating your UISegmentedControl set its index path.
In your action method, you can get simply its index path.
I think it's more convenient way to do what you want to do, because let's say, you want to change the view hierarchy of your cell. It's a good chance to your code needs to be changed. Also, get third superview of a UIKit element is never a good idea.

Answer 4

The clear way of getting the indexpath in this case would be:
NSIndexPath *index = [myTableView indexPathForCell:(UITableViewCell *)[[sender superview]superview]];