RAReorderableLayout

A UICollectionView layout which you can move items with drag and drop.

Screen shots

Animation

Requirements

Swift 2.3 / Xcode 8 OS X 10.9 or later iOS 8.0 or later watchOS 2.0 or later tvOS 9.0 or later

Installation

iOS8 or later

CocoaPods

# Podfile  
use_frameworks!  

target 'YOUR_TARGET_NAME' do
  pod 'RAReorderableLayout'
end

Carthage

 # Cartfile
 github "ra1028/RAReorderableLayout"

iOS7

Simply copy RAReorderableLayout.swift into your project.

Usage

Setup your collection view to use RAReorderableLayout.
You must reorder cells information array in RAReorderableLayoutDelegate protocol to support reordering capability.
Specifically, please refer to Demo-project.

Protocol

Delegate

optional func collectionView(collectionView: UICollectionView, atIndexPath: NSIndexPath, willMoveToIndexPath toIndexPath: NSIndexPath)
optional func collectionView(collectionView: UICollectionView, atIndexPath: NSIndexPath, didMoveToIndexPath toIndexPath: NSIndexPath)

optional func collectionView(collectionView: UICollectionView, allowMoveAtIndexPath indexPath: NSIndexPath) -> Bool
optional func collectionView(collectionView: UICollectionView, atIndexPath: NSIndexPath, canMoveToIndexPath: NSIndexPath) -> Bool

optional func collectionView(collectionView: UICollectionView, collectionViewLayout layout: RAReorderableLayout, willBeginDraggingItemAtIndexPath indexPath: NSIndexPath)
optional func collectionView(collectionView: UICollectionView, collectionViewLayout layout: RAReorderableLayout, didBeginDraggingItemAtIndexPath indexPath: NSIndexPath)
optional func collectionView(collectionView: UICollectionView, collectionViewLayout layout: RAReorderableLayout, willEndDraggingItemToIndexPath indexPath: NSIndexPath)
optional func collectionView(collectionView: UICollectionView, collectionViewLayout layout: RAReorderableLayout, didEndDraggingItemToIndexPath indexPath: NSIndexPath)

Datasource

optional func collectionView(collectionView: UICollectionView, reorderingItemAlphaInSection section: Int) -> CGFloat
optional func scrollTrigerEdgeInsetsInCollectionView(collectionView: UICollectionView) -> UIEdgeInsets
optional func scrollTrigerPaddingInCollectionView(collectionView: UICollectionView) -> UIEdgeInsets
optional func scrollSpeedValueInCollectionView(collectionView: UICollectionView) -> CGFloat

Property

var trigerInsets: UIEdgeInsets = UIEdgeInsetsMake(100.0, 100.0, 100.0, 100.0)
var trigerPadding: UIEdgeInsets = UIEdgeInsetsZero
var scrollSpeedValue: CGFloat = 10.0

License

RAReorderableLayout is available under the MIT license. See the LICENSE file for more info.

gonghao/RAReorderableLayout