iOS: UITableView Selective Touches - objective-c

Question

I have a UITableView that has certain cells that are a different height. I was hoping to have a way, without adding a button to each cell, to not receive responses to didSelectedRowAtIndexPath, if the touches in the cell are below a certain point.
As an example, say I have two cells, one that has a height of 100 and another with a height of 150. Is there a way to not receive responses to didSelectRowAtIndexPath: for touches below 100, but still receive the touch input on the cell?
I thought of overriding the touches methods in the cell and returning the point of contact in a delegate to the controller/table and using that input to determine whether or not I will ignore the didSelectRowAtIndexPath: response, but I'm worried about the highlighting and other calls and whether it may not be fast enough to block those as well. It just seems really iffy to me.

Answer 1

I think without subclassing the cell, it isn't possible.
My suggestion would be to do this:
Create a Subclass of the cells
Add an extra boolean iVar to the cells, like didTapOutside
Set the boolean to True or False, based ont he Y position tap in the touchesBegan method
In the didSelectRowAtIndexPath read the didTapOutside boolean variable and according to it's setting do your actions
Example follows:
#interface MyCustomCell : UITableViewCell {
BOOL didTapOutside;
}
#property (atomic, readwrite) BOOL didTapOutside;
And the implementation:
#implementation MyCustomCell
#synthesize didTapOutside;
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInView:touch.view];
didTapOutside = (location.y>100);
[super touchesBegan:touches withEvent:event];
}

Answer 2

You can create a custom UITableViewCell for example:
CustomCell *cell = [[CustomCell alloc] initWithFrame:rect reuseIdentifier:identifier];
You could override the touchesBegan method in the CustomCell and do something like the following to get the position of the touch:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *aTouch = [touches anyObject];
CGPoint point = [aTouch locationInView:self];
// point.x and point.y have the coordinates of the touch
// based on where the touch is... your custom code
[super touchesBegan:touches withEvent:event];
}

Answer 3

Sorry i read the question wrong at first. There is no easy solution for this.
If you do not want to use a sub class, the only thing you can do is add a transparent view or button on the area you want to detect touch and create an event on that instead of using the table view cell methods.