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https://github.com/Swiftgram/Telegram-iOS.git
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299df0aa8c
* Fix ASDKGram example * Fix some more examples * Convert Swift example to 3.0 * Fix VerticalWithinHorizontalScrolling * Fix some headers * Fix some more API changes * Remove semicolons
94 lines
3.4 KiB
Swift
94 lines
3.4 KiB
Swift
//
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// ViewController.swift
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// Sample
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
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// grant of patent rights can be found in the PATENTS file in the same directory.
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//
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// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
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// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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import UIKit
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import AsyncDisplayKit
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class ViewController: ASViewController<ASCollectionNode>, MosaicCollectionViewLayoutDelegate, ASCollectionDataSource, ASCollectionDelegate {
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var _sections = [[UIImage]]()
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let _collectionNode: ASCollectionNode
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let _layoutInspector = MosaicCollectionViewLayoutInspector()
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let kNumberOfImages: UInt = 14
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init() {
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let layout = MosaicCollectionViewLayout()
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layout.numberOfColumns = 3;
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layout.headerHeight = 44;
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_collectionNode = ASCollectionNode(frame: CGRect.zero, collectionViewLayout: layout)
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super.init(node: _collectionNode)
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layout.delegate = self
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_sections.append([]);
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var section = 0
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for idx in 0 ..< kNumberOfImages {
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let name = String(format: "image_%d.jpg", idx)
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_sections[section].append(UIImage(named: name)!)
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if ((idx + 1) % 5 == 0 && idx < kNumberOfImages - 1) {
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section += 1
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_sections.append([])
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}
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}
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_collectionNode.backgroundColor = UIColor.white
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_collectionNode.dataSource = self
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_collectionNode.delegate = self
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_collectionNode.layoutInspector = _layoutInspector
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_collectionNode.registerSupplementaryNode(ofKind: UICollectionElementKindSectionHeader)
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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_collectionNode.view.isScrollEnabled = true
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}
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func collectionNode(_ collectionNode: ASCollectionNode, nodeForItemAt indexPath: IndexPath) -> ASCellNode {
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let image = _sections[indexPath.section][indexPath.item]
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return ImageCellNode(with: image)
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}
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func collectionNode(_ collectionNode: ASCollectionNode, nodeForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> ASCellNode {
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let textAttributes : NSDictionary = [
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NSFontAttributeName: UIFont.preferredFont(forTextStyle: UIFontTextStyle.headline),
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NSForegroundColorAttributeName: UIColor.gray
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]
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let textInsets = UIEdgeInsets(top: 11, left: 0, bottom: 11, right: 0)
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let textCellNode = ASTextCellNode(attributes: textAttributes as! [AnyHashable : Any], insets: textInsets)
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textCellNode.text = String(format: "Section %zd", indexPath.section + 1)
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return textCellNode
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}
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func numberOfSections(in collectionNode: ASCollectionNode) -> Int {
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return _sections.count
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}
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func collectionNode(_ collectionNode: ASCollectionNode, numberOfItemsInSection section: Int) -> Int {
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return _sections[section].count
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}
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internal func collectionView(_ collectionView: UICollectionView, layout: MosaicCollectionViewLayout, originalItemSizeAtIndexPath: IndexPath) -> CGSize {
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return _sections[originalItemSizeAtIndexPath.section][originalItemSizeAtIndexPath.item].size
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}
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}
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