Created
April 22, 2020 03:41
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| func updateDataIndex(from fromIndexPath: IndexPath, to toIndexPath: IndexPath) { | |
| let fromPosition = fromIndexPath.item | |
| let toPosition = toIndexPath.item | |
| let selected = cellDataList[fromPosition] as Int | |
| DispatchQueue.main.async {[weak self] in | |
| self?.cellDataList.remove(at: fromPosition) | |
| var newindex = toPosition | |
| if (newindex > self?.cellDataList.count ?? 0) { | |
| newindex = self?.cellDataList.count ?? 0 | |
| } | |
| self?.cellDataList.insert(selected, at: newindex) | |
| self?.collectionView.reloadData() | |
| UIView.performWithoutAnimation { | |
| self?.collectionView.reloadSections(IndexSet(integersIn: 0...0)) | |
| } | |
| } | |
| } | |
| func getCollectionViewColumnMaxCount() -> Int { | |
| return ViewController.columnCount | |
| } | |
| func getCollectionViewRowMaxCount() -> Int { | |
| return 10 | |
| } | |
| func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { | |
| let maxCount = getCollectionViewColumnMaxCount() * getCollectionViewRowMaxCount() | |
| let bufferCount = maxCount - (self.cellDataList.count % maxCount) | |
| return self.cellDataList.count + bufferCount | |
| } |
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