Objective-C

In your myCollectionViewController.h file add the UIGestureRecognizerDelegate protocol

@interface myCollectionViewController : UICollectionViewController<UIGestureRecognizerDelegate>

in your myCollectionViewController.m file:

- (void)viewDidLoad{    // attach long press gesture to collectionView    UILongPressGestureRecognizer *lpgr        = [[UILongPressGestureRecognizer alloc]                     initWithTarget:self action:@selector(handleLongPress:)];    lpgr.delegate = self;    lpgr.delaysTouchesBegan = YES;    [self.collectionView addGestureRecognizer:lpgr];}-(void)handleLongPress:(UILongPressGestureRecognizer *)gestureRecognizer{    if (gestureRecognizer.state != UIGestureRecognizerStateEnded) {        return;    }    CGPoint p = [gestureRecognizer locationInView:self.collectionView];    NSIndexPath *indexPath = [self.collectionView indexPathForItemAtPoint:p];    if (indexPath == nil){        NSLog(@"couldn't find index path");                } else {        // get the cell at indexPath (the one you long pressed)        UICollectionViewCell* cell =        [self.collectionView cellForItemAtIndexPath:indexPath];        // do stuff with the cell    }}

Swift

class Some {    @objc func handleLongPress(gesture : UILongPressGestureRecognizer!) {        if gesture.state != .Ended {            return        }        let p = gesture.locationInView(self.collectionView)        if let indexPath = self.collectionView.indexPathForItemAtPoint(p) {            // get the cell at indexPath (the one you long pressed)            let cell = self.collectionView.cellForItemAtIndexPath(indexPath)            // do stuff with the cell        } else {            print("couldn't find index path")        }    }}let some = Some()let lpgr = UILongPressGestureRecognizer(target: some, action: #selector(Some.handleLongPress))

Swift 4

class Some {    @objc func handleLongPress(gesture : UILongPressGestureRecognizer!) {        if gesture.state != .ended {             return         }         let p = gesture.location(in: self.collectionView)         if let indexPath = self.collectionView.indexPathForItem(at: p) {             // get the cell at indexPath (the one you long pressed)             let cell = self.collectionView.cellForItem(at: indexPath)             // do stuff with the cell         } else {             print("couldn't find index path")         }    }}let some = Some()let lpgr = UILongPressGestureRecognizer(target: some, action: #selector(Some.handleLongPress))

The same code @abbood's code for Swift:

In viewDidLoad:

let lpgr : UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: "handleLongPress:")lpgr.minimumPressDuration = 0.5lpgr.delegate = selflpgr.delaysTouchesBegan = trueself.collectionView?.addGestureRecognizer(lpgr)

And the function:

func handleLongPress(gestureRecognizer : UILongPressGestureRecognizer){    if (gestureRecognizer.state != UIGestureRecognizerState.Ended){        return    }    let p = gestureRecognizer.locationInView(self.collectionView)    if let indexPath : NSIndexPath = (self.collectionView?.indexPathForItemAtPoint(p))!{        //do whatever you need to do    }}

Do not forget the delegate UIGestureRecognizerDelegate

Use the delegate of UICollectionView receive long press event

You must impl 3 method below.

//UICollectionView menu delegate- (BOOL)collectionView:(UICollectionView *)collectionView shouldShowMenuForItemAtIndexPath:(NSIndexPath *)indexPath{   //Do something   return YES;}- (BOOL)collectionView:(UICollectionView *)collectionView canPerformAction:(SEL)action forItemAtIndexPath:(NSIndexPath *)indexPath withSender:(nullable id)sender{    //do nothing    return NO;}- (void)collectionView:(UICollectionView *)collectionView performAction:(SEL)action forItemAtIndexPath:(NSIndexPath *)indexPath withSender:(nullable id)sender{    //do nothing}