get CGPoint inside didSelectItemAtIndexPath method of CollectionView - ios

Question

Is there a way that I can get coordinates of clicked point inside collectionViewCell? I want to do method A if I clicked at rect with Y coordinate < 50, and method B if Y >50.

Answer 1

There is also option B, to subclass the UITableViewCell and get the location from the UIResponder class:
#interface CustomTableViewCell : UITableViewCell
#property (nonatomic) CGPoint clickedLocation;
#end
#implementation CustomTableViewCell
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[super touchesBegan:touches withEvent:event];
UITouch *touch = [touches anyObject];
self.clickedLocation = [touch locationInView:touch.view];
}
#end
Then get the location from the TableViewCell it self:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//get the cell
CustomTableViewCell *cell = (CustomTableViewCell*)[tableView cellForRowAtIndexPath:indexPath];
//get where the user clicked
if (cell.clickedLocation.Y<50) {
//Method A
}
else {
//Method B
}
}

Answer 2

Assuming you have a custom UICollectionViewCell, you can add a UITapGestureRecognizer to the cell and get the touch point in the touchesBegan handler. Like this:
//add gesture recognizer to cell
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] init];
[cell addGestureRecognizer:singleTap];
//handler
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint touchPoint = [touch locationInView:self.view];
if (touchPoint.y <= 50) {
[self methodA];
}
else {
[self methodB];
}
}