Question

I have a UIButton inside a UITableViewCell. When the user touches a cell’s button, I want to display a UIPopoverController pointing to the button.

At the moment I have the following code in the cell’s delegate (the delegate is the view controller that owns the UITableView):

-(void) onStatusButtonTouched:(UIButton *)aButton{
    StatusPickerController *statusPicker = [[StatusPickerController alloc] init];

    _popOver = nil;
    _popOver = [[UIPopoverController alloc] initWithContentViewController:statusPicker];

    [_popOver setDelegate:self];

    [_popOver presentPopoverFromRect:aButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];
    [_popOver setPopoverContentSize:CGSizeMake(100, 352)];   
}

With this code the pop over is always pointing at the top of the view, because the button’s y position is relative to its cell.

My question is, how can I know the button absolute position in order to point to it? Is there any method to work it out?

Answer 1

Instead of the following line

[_popOver presentPopoverFromRect:aButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];

try the following line

[_popOver presentPopoverFromRect:aButton.frame inView:[aButton superview] permittedArrowDirections:UIPopoverArrowDirectionLeft animated:YES];