Updating to XCode 7 means that this is no longer usable without running the auto migration tool.

I have error "use of undeclared type RAReorderableLayoutDelegate...., DataSource"
I think that we need to add 'open', but not sure.

I follow the tutorial of using swift code in obj-c project, and import "XXXX-Swift.h"
but still get error, the RAReorderableLayout is not recognized in obj-c.

When using one finger to longpress without moving you can use another finger to scroll and it kinda messes up the cell position.

If you drag the B and drop left to the A, you'll get two A's. This problem occurs on demo and actual project.

// current:
 func collectionView(_ collectionView: UICollectionView, at: IndexPath, didMoveTo toIndexPath: IndexPath) {
        let book = books.remove(at: (toIndexPath as NSIndexPath).item)
        books.insert(book, at: (toIndexPath as NSIndexPath).item)
    }

// fixed: Is this the right solution ?
 func collectionView(_ collectionView: UICollectionView, at: IndexPath, didMoveTo toIndexPath: IndexPath) {
        let book = books.remove(at: (at as NSIndexPath).item)
        books.insert(book, at: (toIndexPath as NSIndexPath).item)
    }

Hi,
I'm trying to use RAReorderableLayout for my swift Project but after many tries I can't get to re-create my custom Layout.

What would be the best way to create something looking like that ?

By the way, thank you for your great work ;)

I have a collectionView that implements RAReorderableLayout and when I long press a collection item the cells must enter in edit mode and they must look different so that edit buttons appear in each cell view.
Everything works fine unless after I enter the screen, where this collection view is, I long press a cell very quickly and it does not manage to finish redrawing the cells and it reaches this line in your code and crashes because currentCell is nil and you don't unwrap it correctly:

            let currentCell = collectionView?.cellForItem(at: indexPath!)
            
            
            cellFakeView = RACellFakeView(cell: currentCell!)

Please unwrap it correctly so I can still use cocoapods with the bug fix. Thank you!

Hello ,

I want to set any value in 'minimumPressDuration' of UILongPressGestureRecognizer.
But, I do not have a better idea.

Can you add this feature?

After migrating to swift 3, cellForItemAtIndexPath needed to change to cellForItemAt, but when I changed it an error appeared saying:

Method 'collectionView(_:cellForItemAt:)' has different argument names from those required by protocol 'RAReorderableLayoutDataSource' ('collectionView(_:cellForItemAtIndexPath:)')

And suggests a quick fix to change it back to cellForItemAtIndexPath.

canMoveToIndexPath has no effect

self.delegate?.collectionView?(self.collectionView!, atIndexPath: atIndexPath!, canMoveToIndexPath: toIndexPath!)

Should return here

I have lots of cells out side of the screen, and while dragging, when I drag one cell to the bottom of the screen, the UICollectionView cannot scroll slowly to show more cells.

However, the demo can achieve so. I am not sure what I missed?

I looked at the code, it's related to private func beginScrollIfNeeded()

But I don't know why mine don't trigger the scroll, it goes to

else {
            self.invalidateDisplayLink()
        }

And I have no idea what's the logic while calculating fakeCellTopEdge <= offset + paddingTop + trigerInsetTop and fakeCellEndEdge >= offset + length - paddingEnd - trigerInsetEnd

It takes about 3 seconds to detect long press gesture on iPad, how to improve it?

It there an option to add 3D touch feedback on drag and drop?

Hello, is there currently anyway to disable a cell from being dragged? What I'm trying to achieve is something similar to the bumble app ,https://itunes.apple.com/us/app/bumble-find-date-meet-friends/id930441707?mt=8 .Where you choice profile pictures if there's not an image in a cell, the cell's dragging becomes disabled/

Updating to XCode 8 means that this is no longer usable without running the auto migration tool.

if items have different size, the cellFakeView may transform to the size of toIndexPath item.

I will send a pull request fix it

It is not possible to drop a cell to an empty section. How do I achieve that?

In Swift3, Xcode8, i have this problem

When I do my long press, the entire screen "jumps" and then everything works like normal. It's very jarring visually. I only implemented two of your methods so far:

// MARK: - RAReorderableLayoutDataSource
extension HomeScreenViewController: RAReorderableLayoutDataSource {
func collectionView(collectionView: UICollectionView, reorderingItemAlphaInSection section: Int) -> CGFloat {
return 0.3
}
}

// MARK: - RAReorderableLayoutDelegate
extension HomeScreenViewController: RAReorderableLayoutDelegate {
func collectionView(collectionView: UICollectionView, atIndexPath: NSIndexPath, didMoveToIndexPath toIndexPath: NSIndexPath) {
let item = collectionData.removeAtIndex(atIndexPath.item)

    collectionData.insert(item, atIndex: toIndexPath.item)
}

}

Hi, how use your delegate in ObjC library?
I import your library and RAReorderableLayout-Swift.h, but delegate methods not called.

When i handle long press , my cell status is change into edit mode . So i don't need handle long press again , i want only handle Pan and move cell because waiting for handle long press is too long to move my cell .
Can anyone help me pls ?

请问oc语言 UICollectionView能支持拖动动画不？

If your Layout support for UICollectionReusableView, it will be nice! :D

Hello, is it possible to detect when the rearrange is finished. thus call a function at that point in time?

Here is my demo for easy understand

I'm beginner with Swift and i don't know this is bug or my mistake, please help me.

Thank you very much.

When I simply tap and hold a touch the application blinks.
Simulator 8.1 but it seems it will occur in all the versions

Hi,

is any way to disable dragging all cells or any one?

cannot call the method viewForSupplementaryElementOfKind

Will you be adding support for rotation or is there a simple way to do that already? The Demo did not support it.

Great Code!

Thanks,

Rob