How to simulate a touch on iOS - ios

Question

I would like to know if there isn't any method which will allow me to simulate a touch/click/pressure (call it as you want) on iOS.
I don't know if I have something to add about this... Except that I'm coding with Objective-c.
Every help will be appreciated, thanks in advance!
EDIT:
Here is the method that allow me to have the coordinates of the case that I've selected (it show me in the log) :
- (void)collectionViewTableLayoutManager:(DRCollectionViewTableLayoutManager *)manager collectionView:(UICollectionView *)collectionView didSelectCellAtRow:(NSUInteger)row column:(NSUInteger)column indexPath:(NSIndexPath *)indexPath
{
NSLog(#"SELECTED: %ld.%ld / %ld.%ld", (long)indexPath.section, (long)indexPath.row, (long)row, (long)column);
}
Here is my method who handle the dragNdrop of my PostIt (see in the comments for more info):
-(IBAction)handlePan:(UIPanGestureRecognizer *)recognizer{
CGPoint translation = [recognizer translationInView:self];
recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x, recognizer.view.center.y + translation.y);
//Here to know the coordinates of the drop
if(recognizer.state == UIGestureRecognizerStateEnded){
CGPoint centerPointOfView = [recognizer locationInView:self.superview];
NSLog(#"X - %f, Y - %f",centerPointOfView.x,centerPointOfView.y);
}
[recognizer setTranslation:CGPointMake(0, 0) inView:self];
}

Answer 1

So here is how I solved my problem. Initially, the method who handle the postIt's dragNdrop was in the postIt.m . So I moved it into my viewController.m . Now, from this method, I'm able to pick up the CollectionView of my viewController and "simulate" a click.
Here is how my new method looks like:
-(IBAction)handlePan:(UIPanGestureRecognizer *)recognizer{
CGPoint translation = [recognizer translationInView:self.view];
recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x, recognizer.view.center.y + translation.y);
//the coordinates of the drop
if(recognizer.state == UIGestureRecognizerStateEnded){
CGPoint centerPointOfView = [recognizer locationInView:self.view];
NSLog(#"X - %f, Y - %f",centerPointOfView.x,centerPointOfView.y);
//Here is how I pick up the cell where the post it has been dropped
[_collectionView cellForItemAtIndexPath:[_collectionView indexPathForItemAtPoint:centerPointOfView]];
NSIndexPath *indexPath =[_collectionView indexPathForItemAtPoint:centerPointOfView];
//some log tests
NSLog(#"SELECTED: %ld.%ld ", (long)indexPath.section, (long)indexPath.row);
}
[recognizer setTranslation:CGPointMake(0, 0) inView:self.view];
}