CODEWITHSUNDEEP
objective-cios6uicollectionview
Guido Hendriks
Guido Hendriks

Reputation: 5776

Gestures on a UICollectionViewCell; what to do with the result?

I'm currently working on a project for an iPad app. The main screen is a UICollectionView with AlbumCell's, a subclass of UICollectionViewCell. Now I wanted to add an UILongPressGestureRecognizer to pop up an UIActionSheet.

First I tried that in the UICollectionViewController, but I figured that that isn't the right place to add those. So my best guess is adding the gesture in the AlbumCell class? Then probably adding itself as delegate, so it catches it's own gestures.

Is this a good approach so far?

After I catch the gesture, I should show the UIActionSheet. Now I open it in the UICollectionViewController when the user selects a cell while in editing mode. But should I call a method on the UICollectionViewController to open it, like I do now? Or should the cell handle it's own UIActionSheet?

Eventually I got to let the UICollectionViewController what to do, might be to let him open the UIActionSheet, or handle accordingly to the result of it. How should the AlbumCell "communicate" with it?

It's something I've been struggling with multiple times, not just in this use case. Is the approach close, or should I handle those actions totally different?

Upvotes: 7

Views: 3558

Answers (1)

Ash Furrow
Ash Furrow

Reputation: 12421

You can adopt the same method of using UILongPressGestureRecognizer on UITableView.

Basically, set up one recognizer. In the selector, use the indexPathForItemAtPoint: to find out what index path the user was pressing on. Finally, if the user is pressing on a cell (and not pressing on the space in between cells), present the UIActionSheet however you like.

Upvotes: 13

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