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@@ -1,351 +0,0 @@
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-//
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-// WSSVideoScrollView.swift
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-// ScrollDemo
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-//
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-// Created by zhongbaojian on 2019/8/12.
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-// Copyright © 2019 zhongbaojian. All rights reserved.
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-//
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-
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-import UIKit
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-
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-class WSSVideoScrollView: UIView {
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- // MARK: - Public
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-
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- var datas: [WSSCommonTemplateModel] = [] {
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- didSet {
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- reloadData()
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- }
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- }
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-
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- var changePageHanle: ((_ current: Int, _ last: Int) -> Void)?
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- var playActionHandle: ((WSSCommonTemplateModel?, Bool) -> Void)?
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- var albumActionHandle: ((WSSCommonTemplateModel?) -> Void)?
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- var shareActionHandle: ((WSSCommonTemplateModel?) -> Void)?
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- var headerRefreshHandle: (() -> Void)?
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- var footerRefreshHandle: (() -> Void)?
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-
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- override init(frame: CGRect) {
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- super.init(frame: frame)
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-
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- bottomItem.isHidden = true
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- bottomItem.y = -1.0 * frame.height
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-
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- addSubview(container)
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- container.addSubview(topItem)
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- container.addSubview(midItem)
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- container.addSubview(bottomItem)
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-
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- itemViews.append(bottomItem)
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- itemViews.append(topItem)
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- itemViews.append(midItem)
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- }
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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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-
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- func currentShowingItem() -> WSSRecommendCell {
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- return itemViews[1]
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- }
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-
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- func lastShowItem() -> WSSRecommendCell? {
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- return lastItemView
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- }
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-
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- func triggerHeaderRefresh() {
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- container.mj_header.beginRefreshing()
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- reset()
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- }
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-
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- func endHeaderRefresh() {
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- if container.mj_header.isRefreshing {
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- container.mj_header.endRefreshing()
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- }
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- }
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-
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- func endFooterRefresh(isNoMore: Bool) {
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- if isNoMore {
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- container.mj_footer.endRefreshingWithNoMoreData()
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- } else {
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- container.mj_footer.endRefreshing()
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- container.mj_footer.resetNoMoreData()
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- }
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-
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- container.contentInset = UIEdgeInsets.zero
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-
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- if let preModel = self.datas.safeObject(atIndex: self.currentIndex + 1), let last = self.itemViews.last {
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- last.isHidden = false
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- last.setup(withVideoModel: preModel)
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- }
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- }
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-
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- func reset() {
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- currentIndex = 0
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- lastIndex = 0
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- lastItemView = nil
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-
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- bottomItem.isHidden = true
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- bottomItem.y = -1.0 * frame.height
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-
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- topItem.y = 0.0
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- midItem.y = container.height
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-
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- itemViews[0] = bottomItem
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- itemViews[1] = topItem
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- itemViews[2] = midItem
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- }
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-
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- // MARK: - Private
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-
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- fileprivate var currentIndex: Int = 0
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- fileprivate var lastIndex: Int = 0
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- fileprivate var startDragPointY: CGFloat = 0.0
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- fileprivate var itemViews: [WSSRecommendCell] = []
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- fileprivate var lastItemView: WSSRecommendCell?
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-
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- fileprivate lazy var container: UIScrollView = {
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- let scroller: UIScrollView = UIScrollView(frame: self.bounds)
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- scroller.delegate = self
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- scroller.contentSize = self.bounds.size
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- scroller.isPagingEnabled = true
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- scroller.showsVerticalScrollIndicator = false
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- scroller.showsHorizontalScrollIndicator = false
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- scroller.delaysContentTouches = false
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-
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- if #available(iOS 11.0, *) {
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- scroller.contentInsetAdjustmentBehavior = .never
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- } else {
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- scroller.contentInset = UIEdgeInsets.zero
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- }
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- scroller.mj_header = WSSRefreshHeader(refreshingBlock: { [weak self] in
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- self?.headerRefreshHandle?()
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- })
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- scroller.mj_footer = FVRefreshFooter(refreshingBlock: { [weak self] in
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- self?.footerRefreshHandle?()
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- })
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-
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- return scroller
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- }()
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-
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- fileprivate lazy var topItem: WSSRecommendCell = {
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- let cell = self.createRecommendCell()
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- cell.y = 0.0
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- cell.tag = 1001
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- return cell
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- }()
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-
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- fileprivate lazy var midItem: WSSRecommendCell = {
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- let cell = self.createRecommendCell()
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- cell.y = self.container.height
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- cell.tag = 1002
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- return cell
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- }()
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-
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- fileprivate lazy var bottomItem: WSSRecommendCell = {
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- let cell = self.createRecommendCell()
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- cell.tag = 1003
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- return cell
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- }()
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-
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- private func reloadData() {
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- let contentHeight: CGFloat = container.height * CGFloat(datas.count)
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- container.contentSize = CGSize(width: container.width, height: contentHeight)
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-
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- WSSLog("🐱🐱🐱: 刷新一次: \(datas.count) +++ \(currentIndex) +++ \(itemViews.map({ ($0.tag, $0.isHidden) }))")
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-
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- for item in datas.enumerated() {
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- let model = item.element
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- if item.offset == currentIndex {
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- let target = itemViews[1]
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- target.isHidden = false
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- target.setup(withVideoModel: model)
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- } else if item.offset == currentIndex + 1 {
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- let target = itemViews[2]
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- target.isHidden = false
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- target.setup(withVideoModel: model)
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- } else if item.offset == currentIndex - 1 {
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- let target = itemViews[0]
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- target.isHidden = false
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- target.setup(withVideoModel: model)
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- } else {
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- continue
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- }
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- }
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- }
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-
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- fileprivate func changeSort(isUp: Bool) {
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- if isUp {
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- if let first = self.itemViews.first {
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- first.y = first.y + 3 * container.height
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-
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- let mid = itemViews[1]
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- let bottom = itemViews[2]
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- itemViews[0] = mid
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- itemViews[1] = bottom
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- itemViews[2] = first
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- }
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- } else {
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- if let last = self.itemViews.last {
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- last.y = last.y - 3 * container.height
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-
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- let first = itemViews[0]
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- let second = itemViews[1]
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- itemViews[0] = last
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- itemViews[1] = first
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- itemViews[2] = second
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- }
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- }
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- }
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-
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- fileprivate func createRecommendCell() -> WSSRecommendCell {
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- let cell: WSSRecommendCell = WSSRecommendCell.ojs_loadFromNib()
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- cell.frame = container.bounds
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- cell.videoPlayButton.isSelected = false
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- cell.playActionHandle = { [unowned self] model, flag in
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- self.playActionHandle?(model, flag)
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- }
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- cell.albumActionHandle = { [unowned self] model in
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- self.albumActionHandle?(model)
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- }
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- cell.shareActionHandle = { [unowned self] model in
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- self.shareActionHandle?(model)
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- }
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- return cell
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- }
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-
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- override func layoutSubviews() {
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- super.layoutSubviews()
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-
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- if #available(iOS 11.0, *) {
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- //
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- } else {
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- container.contentInset = UIEdgeInsets.zero
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- }
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- }
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-
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- fileprivate func scrollItem(to index: Int, isChangePage: Bool) {
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- WSSLog("🐱: 当前页 >>> \(index)")
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-
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- lastIndex = currentIndex
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- lastItemView = itemViews[1]
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- currentIndex = Int(index)
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-
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- let delta = currentIndex - lastIndex
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- if delta < 0 {
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- // 向下 -1
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- let preIndex = currentIndex - 1
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- if let model = self.datas.safeObject(atIndex: preIndex), let last = self.itemViews.last {
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- last.isHidden = false
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- last.setup(withVideoModel: model)
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- last.currentIndexPath = IndexPath(row: preIndex, section: 0)
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- changeSort(isUp: false)
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-
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-// WSSLog("🐱: 向下 >>> 000")
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-
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- } else {
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- if currentIndex == 0 {
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- // 第一项了，还是需要移动一下，但是隐藏
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- if let last = self.itemViews.last {
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- last.isHidden = true
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- changeSort(isUp: false)
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-
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-// WSSLog("🐱: 向下 >>> 111")
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- }
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- } else {
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-// WSSLog("🐱: 向下 >>> 222")
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- }
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- }
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-
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- } else if delta > 0 {
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- // 向上 +1
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- let preIndex = currentIndex + 1
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- if let model = self.datas.safeObject(atIndex: preIndex), let first = self.itemViews.first {
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- first.isHidden = false
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- first.setup(withVideoModel: model)
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- first.currentIndexPath = IndexPath(row: preIndex, section: 0)
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- changeSort(isUp: true)
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-
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-// WSSLog("🐱: 向上 >>> 000")
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-
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- } else {
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- if currentIndex == datas.count - 1 {
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- // 最后一项，还是需要移动一下，但是隐藏
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- if let first = self.itemViews.first {
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- first.isHidden = true
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- changeSort(isUp: true)
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-
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-// WSSLog("🐱: 向上 >>> 111")
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- }
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- } else {
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-// WSSLog("🐱: 向上 >>> 222")
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- }
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- }
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-
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- } else {
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- // 不变
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-
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-// WSSLog("🐱: 不变")
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-
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- if let currentModel = self.datas.safeObject(atIndex: currentIndex), let targetModel = self.currentShowingItem().templateModel {
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-// WSSLog("🐱: 不变 》》》》 \(currentModel.templateId) ++++ \(targetModel.templateId)")
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-
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- if currentModel.templateId != targetModel.templateId {
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- // 位置不对
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- if let targetIndex = self.datas.firstIndex(where: { $0.templateId == targetModel.templateId }) {
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- let tmpDelta = currentIndex - targetIndex
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- changeSort(isUp: tmpDelta < 0)
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- }
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- }
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- }
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- }
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-
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- if let lastModel = self.datas.safeObject(atIndex: self.lastIndex) {
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- lastModel.selected = false
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- }
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- if let currentModel = self.datas.safeObject(atIndex: self.currentIndex) {
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- currentModel.selected = true
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- }
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-
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- if isChangePage {
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- changePageHanle?(currentIndex, lastIndex)
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- }
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-
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-// WSSLog("🐱🐱🐱: \(self.itemViews.map({ ($0.tag, $0.isHidden) }))")
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- }
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-}
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-
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-// MARK: -
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-
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-extension WSSVideoScrollView: UIScrollViewDelegate {
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- func scrollViewDidScroll(_ scrollView: UIScrollView) {
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- //
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- }
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-
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- func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
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- startDragPointY = scrollView.contentOffset.y
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- }
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-
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- func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
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- //
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- }
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-
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- func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
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- //
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- let index = scrollView.contentOffset.y / container.height
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- scrollItem(to: Int(index), isChangePage: false)
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- }
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-
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- func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
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- //
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- let index = scrollView.contentOffset.y / container.height
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- scrollItem(to: Int(index), isChangePage: true)
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-
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-// WSSLog("🐱： 停止滚动++++++++++++++++++++++")
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- }
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-
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- func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
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- //
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-// let index = scrollView.contentOffset.y / container.height
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-// WSSLog("🐱\(#function): 当前页 >>> \(Int(index))")
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- }
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-}
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zhongbaojian