convertPoint returning wrong data in tableview

convertPoint is not the best way to do this.

You could:

• set a tag for each button, equal to the indexPath.row of its cell
• then when you tap, you get immediately the row

Note: as you have sections (which will not have more than 1000 rows each I assume),

• set the tag as a multiplex of section and row, such as 1000 * indexPath.section + indexPath.row
• demultiplex when you get the tag with:

let row = tag % 1000
let section = (tag - row) / 1000

or also

• find the cell in which the button is.
• in the IBAction

        var view = sender.superview   // the button superview
        while (view != nil && view!.isKind(of: UITableViewCell.self) == false) { // We stop when no more superview or found a cell. Then view contains the cell
            view = view!.superview
        }
        if let cell = view as? UITableViewCell {  // Or the type of your custom cell
          // Do what you need with cell
       }

Thanks but this code has been in the app for 7+ years and has worked fine until a recent iOS update.

• (IBAction)connectButtonTouched:(id)sender {

    BOOL typeOFAction;     // Determine which Boat Connect Button was touched.     CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.boatsAndDevicesTable];     NSIndexPath *indexPath = [self.boatsAndDevicesTable indexPathForRowAtPoint:buttonPosition]          NSLog(@"sender - %@", sender);     NSLog(@"sender - %@", ((UIButton *)sender).layer);     NSLog(@"button position - %f - %f", buttonPosition.x, buttonPosition.y);     NSLog(@"Index Path Section - %ld", (long)indexPath.section);

    BoatWithStatus *boatForConnectButton = [self.boatsWithStatus objectAtIndex:indexPath.section-1];

The value returned from "convertPoint toView:" is not consistent. Sometimes it matches the section/row and sometimes it doesn't.

I have tried different button actions (touch up, touch down) but the results are the same.

I reformatted to get it more readable.

(IBAction)connectButtonTouched:(id)sender {
   BOOL typeOFAction;  // Determine which Boat Connect Button was touched.  
   CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.boatsAndDevicesTable];  
   NSIndexPath *indexPath = [self.boatsAndDevicesTable indexPathForRowAtPoint:buttonPosition]     

   NSLog(@"sender - %@", sender);  
   NSLog(@"sender - %@", ((UIButton *)sender).layer);  
   NSLog(@"button position - %f - %f", buttonPosition.x, buttonPosition.y);     
   NSLog(@"Index Path Section - %ld", (long)indexPath.section);

  BoatWithStatus *boatForConnectButton = [self.boatsWithStatus objectAtIndex:indexPath.section-1];

I tested similar code in Swift (but with a single section)

    @IBAction func testInCell(_ sender: UIButton) {

        let buttonPosition = sender.convert(CGPoint.zero, to: self.tableForItem2)
        let indexPath = self.tableForItem2.indexPathForRow(at: buttonPosition)
        print(buttonPosition, indexPath)
    }

Tested on simulators iOS 15.2 and 15.4 (Xcode 13.2.1 and Xcode 13.3).

It works correctly.

In your case, is section wrong or both section and row ?

Could you give an example (NSLogs) of wrong results (and print as well row).

Here are the logs.... Also note that is requires at least 4 sections before the problem exists.

It his case, the button touched was in Section 1.

2022-04-28 17:08:27.113602-0400 CMonster[19263:907393] sender - <UIButton: 0x149e44370; frame = (300 10; 100 40); clipsToBounds = YES; opaque = NO; autoresize = LM+BM; layer = <CALayer: 0x2836fa8c0>> 2022-04-28 17:08:27.114013-0400 CMonster[19263:907393] sender - <CALayer: 0x2836fa8c0> 2022-04-28 17:08:27.114162-0400 CMonster[19263:907393] button position - 300.000000 - 190.000000 2022-04-28 17:08:27.114301-0400 CMonster[19263:907393] Index Path Section - 4 2022-04-28 17:08:27.114430-0400 CMonster[19263:907393] Index Path Row - 0

Returned to the same screen and touched the same button in Section 1.

2022-04-28 17:10:06.797661-0400 CMonster[19263:907393] sender - <UIButton: 0x149e57850; frame = (300 10; 100 40); clipsToBounds = YES; opaque = NO; autoresize = LM+BM; layer = <CALayer: 0x2836f5280>> 2022-04-28 17:10:06.797981-0400 CMonster[19263:907393] sender - <CALayer: 0x2836f5280> 2022-04-28 17:10:06.798119-0400 CMonster[19263:907393] button position - 300.000000 - 10.000000 2022-04-28 17:10:06.798264-0400 CMonster[19263:907393] Index Path Section - 1 2022-04-28 17:10:06.798407-0400 CMonster[19263:907393] Index Path Row - 0

Correction. There are no issues when there are 2 sections. The problems start when there are 3 or more sections.

Same issue here. It broke in one of my apps. My index is one off. I tagged a button in the cell on cell creation, the tag is correct, the index path being returned when the button is tapped is not.