long press gesture on table view cell

Question

I want two interactions on a table view cell: normal tap and long press. I used the answer to the following to help me get started:

Long press on UITableView

The problem with that is if I do a long press on a valid cell, the cell will highlight blue, and the long press gesture does not fire (it thinks its just a simple tap). However, if I start the long press gesture on a non-valid cell, then slide my finger over to a valid cell then release, it works just fine.

What is an "invalid cell" by your definition? – omz Mar 19 '12 at 07:17 — omz, Mar 19 '12 at 07:17
i think its "no need cell" – Soorej Babu May 06 '16 at 10:39 — Soorej Babu, May 06 '16 at 10:39

score 30 · Answer 1 · answered Jul 01 '12 at 18:03

There is probably a better answer out there, but here is one way to do it:

First create a long press gesture recognizer on the table view itself.

UILongPressGestureRecognizer* longPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(onLongPress:)];
[self.tableView addGestureRecognizer:longPressRecognizer];

Then, handle it with a routine that can find the selected row:

-(void)onLongPress:(UILongPressGestureRecognizer*)pGesture
{
if (pGesture.state == UIGestureRecognizerStateRecognized)
{
    //Do something to tell the user!
}
if (pGesture.state == UIGestureRecognizerStateEnded)
{
    UITableView* tableView = (UITableView*)self.view;
    CGPoint touchPoint = [pGesture locationInView:self.view];
    NSIndexPath* row = [tableView indexPathForRowAtPoint:touchPoint];
    if (row != nil) {
        //Handle the long press on row
    }
}
}

I haven't tried it, but I think you could keep the row from showing selection by making the gesture recognizers on the table view wait for the long press to fail.

in `onLongPress` method you should use `self.tableView` instead of creating a new tableView instance. Also use `self.tableView` instead of `self.view` — ACAkgul, Dec 27 '18 at 13:46

score 2 · Answer 2 · answered Jun 03 '14 at 10:05

2

I came across the same problem and found a good solution. (at least on iOS 7)

Add this UILongPressGestureRecognizer to the cell itself.

self.longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(onSelfLongpressDetected:)];
[self addGestureRecognizer:self.longPressGesture];

Its weird but important to init with the target to self, AND also add the gestureRecognizer again to self and the method onSelfLongpressDetectedgets called.

answered Jun 03 '14 at 10:05

Fabio Berger

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this is not a solution. I mean it works but we talking about clicking on a specific UITextView within the cell, and no like anywhere within the cell. – ekashking Jan 30 '21 at 23:16

score 1 · Answer 3 · answered Aug 04 '16 at 13:13

I had a problem close to this. First I tried to add a long press gesture to an UIView inside a selectable cell and it didn't work. The solution was to add the gesture to the cell itself, like it was said before in Fabio's answer.

Adding the solution in swift bellow:

let longPress = UILongPressGestureRecognizer.init(target: self, action: #selector(longPress(_:)))
longPress.minimumPressDuration = 1.0
cell.addGestureRecognizer(longPress)

I used the code above inside the UITableViewDataSource method cellForRowAtIndexPath.

score -3 · Accepted Answer · answered Feb 20 '12 at 20:38

-3

Maybe disabling selection in IB or programatically

[cell setSelectionStyle:UITableViewCellSelectionStyleNone];

answered Feb 20 '12 at 20:38

Teofilo Israel Vizcaino Rodrig

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Does this simply just disable the blue highlighting? – user1120008 Feb 20 '12 at 21:28
My theory is that your long press gesture does not fire because the cell is already highlighted. Please, test my proposal, you will not lose anything. – Teofilo Israel Vizcaino Rodrig Feb 21 '12 at 16:01

long press gesture on table view cell

4 Answers4