57 lines
2.2 KiB
Swift
57 lines
2.2 KiB
Swift
// The MIT License (MIT)
|
|
// Copyright © 2017 Ivan Varabei (varabeis@icloud.com)
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
import UIKit
|
|
|
|
extension UICollectionView {
|
|
|
|
var currentIndexCellPath: IndexPath? {
|
|
let visibleRect = CGRect(origin: self.contentOffset, size: self.bounds.size)
|
|
let visiblePoint = CGPoint.init(x: visibleRect.midX, y: visibleRect.midY)
|
|
let visibleIndexPath = self.indexPathForItem(at: visiblePoint)
|
|
return visibleIndexPath
|
|
}
|
|
|
|
func lastRow(indexPath: IndexPath) -> Int {
|
|
return self.numberOfItems(inSection: indexPath.section) - 1
|
|
}
|
|
|
|
func isLastRow(indexPath: IndexPath) -> Bool {
|
|
return indexPath.row == self.lastRow(indexPath: indexPath)
|
|
}
|
|
|
|
func reloadData(animated: Bool, complection: @escaping ()->() = {}) {
|
|
if animated {
|
|
UIView.transition(
|
|
with: self,
|
|
duration: 0.3,
|
|
options: [.transitionCrossDissolve, UIView.AnimationOptions.beginFromCurrentState],
|
|
animations: {
|
|
self.reloadData()
|
|
}, completion: {(state) in
|
|
complection()
|
|
})
|
|
} else {
|
|
self.reloadData()
|
|
}
|
|
}
|
|
}
|