Long press gesture on UICollectionViewCell
Swift 5:
private func setupLongGestureRecognizerOnCollection() {
let longPressedGesture = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress(gestureRecognizer:)))
longPressedGesture.minimumPressDuration = 0.5
longPressedGesture.delegate = self
longPressedGesture.delaysTouchesBegan = true
collectionView?.addGestureRecognizer(longPressedGesture)
}
@objc func handleLongPress(gestureRecognizer: UILongPressGestureRecognizer) {
if (gestureRecognizer.state != .began) {
return
}
let p = gestureRecognizer.location(in: collectionView)
if let indexPath = collectionView?.indexPathForItem(at: p) {
print("Long press at item: \(indexPath.row)")
}
}
Also don't forget to implement UIGestureRecognizerDelegate and call setupLongGestureRecognizerOnCollection from viewDidLoad or wherever you need to call it.
The same code @abbood's code for Swift:
In viewDidLoad:
let lpgr : UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: "handleLongPress:")
lpgr.minimumPressDuration = 0.5
lpgr.delegate = self
lpgr.delaysTouchesBegan = true
self.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
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))