1140 lines
44 KiB
Swift
1140 lines
44 KiB
Swift
//
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// ZLPhotoPreviewSheet.swift
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// ZLPhotoBrowser
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//
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// Created by long on 2020/8/11.
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//
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// Copyright (c) 2020 Long Zhang <495181165@qq.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import UIKit
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import Photos
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public class ZLPhotoPreviewSheet: UIView {
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private enum Layout {
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static let colH: CGFloat = 155
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static let btnH: CGFloat = 45
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static let spacing: CGFloat = 1 / UIScreen.main.scale
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}
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private lazy var baseView: UIView = {
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let view = UIView()
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view.backgroundColor = .zl.rgba(230, 230, 230)
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return view
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}()
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private lazy var collectionView: UICollectionView = {
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let layout = ZLCollectionViewFlowLayout()
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layout.scrollDirection = .horizontal
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layout.minimumInteritemSpacing = 3
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layout.minimumLineSpacing = 3
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layout.sectionInset = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
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let view = UICollectionView(frame: .zero, collectionViewLayout: layout)
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view.backgroundColor = .zl.previewBtnBgColor
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view.delegate = self
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view.dataSource = self
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view.isHidden = ZLPhotoConfiguration.default().maxPreviewCount == 0
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view.backgroundView = placeholderLabel
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ZLThumbnailPhotoCell.zl.register(view)
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return view
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}()
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private lazy var cameraBtn: UIButton = {
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let cameraTitle: String
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if !ZLPhotoConfiguration.default().cameraConfiguration.allowTakePhoto, ZLPhotoConfiguration.default().cameraConfiguration.allowRecordVideo {
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cameraTitle = localLanguageTextValue(.previewCameraRecord)
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} else {
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cameraTitle = localLanguageTextValue(.previewCamera)
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}
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let btn = createBtn(cameraTitle)
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btn.addTarget(self, action: #selector(cameraBtnClick), for: .touchUpInside)
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return btn
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}()
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private lazy var photoLibraryBtn: UIButton = {
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let btn = createBtn(localLanguageTextValue(.previewAlbum))
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btn.addTarget(self, action: #selector(photoLibraryBtnClick), for: .touchUpInside)
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return btn
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}()
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private lazy var cancelBtn: UIButton = {
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let btn = createBtn(localLanguageTextValue(.cancel))
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btn.addTarget(self, action: #selector(cancelBtnClick), for: .touchUpInside)
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return btn
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}()
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private lazy var flexibleView: UIView = {
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let view = UIView()
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view.backgroundColor = .zl.previewBtnBgColor
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return view
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}()
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private lazy var placeholderLabel: UILabel = {
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let label = UILabel()
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label.font = .zl.font(ofSize: 15)
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label.text = localLanguageTextValue(.noPhotoTips)
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label.textAlignment = .center
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label.textColor = .zl.previewBtnTitleColor
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return label
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}()
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private var arrDataSources: [ZLPhotoModel] = []
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private var arrSelectedModels: [ZLPhotoModel] = []
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private var preview = false
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private var animate = true
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private var senderTabBarIsHidden: Bool?
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private var baseViewHeight: CGFloat = 0
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private var isSelectOriginal = false
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private var panBeginPoint: CGPoint = .zero
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private var panImageView: UIImageView?
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private var panModel: ZLPhotoModel?
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private var panCell: ZLThumbnailPhotoCell?
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private weak var sender: UIViewController?
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private lazy var fetchImageQueue = OperationQueue()
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/// Success callback
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/// block params
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/// - params1: result models
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/// - params2: is full image
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@objc public var selectImageBlock: (([ZLResultModel], Bool) -> Void)?
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/// Callback for photos that failed to parse
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/// block params
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/// - params1: failed assets.
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/// - params2: index for asset
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@objc public var selectImageRequestErrorBlock: (([PHAsset], [Int]) -> Void)?
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@objc public var cancelBlock: (() -> Void)?
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deinit {
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zl_debugPrint("ZLPhotoPreviewSheet deinit")
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}
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/// - Parameter selectedAssets: preselected assets
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@objc public convenience init(selectedAssets: [PHAsset]? = nil) {
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self.init(frame: .zero)
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let config = ZLPhotoConfiguration.default()
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selectedAssets?.zl.removeDuplicate().forEach { asset in
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if !config.allowMixSelect, asset.mediaType == .video {
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return
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}
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let m = ZLPhotoModel(asset: asset)
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m.isSelected = true
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self.arrSelectedModels.append(m)
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}
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}
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/// Using this init method, you can continue editing the selected photo.
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/// - Note:
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/// Provided that saveNewImageAfterEdit = false
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/// - Parameters:
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/// - results : preselected results
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@objc public convenience init(results: [ZLResultModel]? = nil) {
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self.init(frame: .zero)
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let config = ZLPhotoConfiguration.default()
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results?.zl.removeDuplicate().forEach { result in
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if !config.allowMixSelect, result.asset.mediaType == .video {
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return
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}
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let m = ZLPhotoModel(asset: result.asset)
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if result.isEdited {
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m.editImage = result.image
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m.editImageModel = result.editModel
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}
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m.isSelected = true
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self.arrSelectedModels.append(m)
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}
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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let config = ZLPhotoConfiguration.default()
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if !config.allowSelectImage, !config.allowSelectVideo {
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assertionFailure("ZLPhotoBrowser: error configuration. The values of allowSelectImage and allowSelectVideo are both false")
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config.allowSelectImage = true
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}
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fetchImageQueue.maxConcurrentOperationCount = 3
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setupUI()
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}
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@available(*, unavailable)
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public required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override public func layoutSubviews() {
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super.layoutSubviews()
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baseView.frame = CGRect(x: 0, y: bounds.height - baseViewHeight, width: bounds.width, height: baseViewHeight)
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var btnY: CGFloat = 0
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if ZLPhotoConfiguration.default().maxPreviewCount > 0 {
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collectionView.frame = CGRect(x: 0, y: 0, width: bounds.width, height: ZLPhotoPreviewSheet.Layout.colH)
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btnY += (collectionView.frame.maxY + ZLPhotoPreviewSheet.Layout.spacing)
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}
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if canShowCameraBtn() {
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cameraBtn.frame = CGRect(x: 0, y: btnY, width: bounds.width, height: ZLPhotoPreviewSheet.Layout.btnH)
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btnY += (ZLPhotoPreviewSheet.Layout.btnH + ZLPhotoPreviewSheet.Layout.spacing)
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}
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photoLibraryBtn.frame = CGRect(x: 0, y: btnY, width: bounds.width, height: ZLPhotoPreviewSheet.Layout.btnH)
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btnY += (ZLPhotoPreviewSheet.Layout.btnH + ZLPhotoPreviewSheet.Layout.spacing)
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cancelBtn.frame = CGRect(x: 0, y: btnY, width: bounds.width, height: ZLPhotoPreviewSheet.Layout.btnH)
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btnY += ZLPhotoPreviewSheet.Layout.btnH
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flexibleView.frame = CGRect(x: 0, y: btnY, width: bounds.width, height: baseViewHeight - btnY)
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}
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func setupUI() {
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autoresizingMask = [.flexibleWidth, .flexibleHeight]
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backgroundColor = .zl.previewBgColor
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let showCameraBtn = canShowCameraBtn()
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var btnHeight: CGFloat = 0
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if ZLPhotoConfiguration.default().maxPreviewCount > 0 {
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btnHeight += ZLPhotoPreviewSheet.Layout.colH
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}
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btnHeight += (ZLPhotoPreviewSheet.Layout.spacing + ZLPhotoPreviewSheet.Layout.btnH) * (showCameraBtn ? 3 : 2)
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btnHeight += deviceSafeAreaInsets().bottom
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baseViewHeight = btnHeight
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addSubview(baseView)
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baseView.addSubview(collectionView)
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cameraBtn.isHidden = !showCameraBtn
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baseView.addSubview(cameraBtn)
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baseView.addSubview(photoLibraryBtn)
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baseView.addSubview(cancelBtn)
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baseView.addSubview(flexibleView)
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if ZLPhotoConfiguration.default().allowDragSelect {
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let pan = UIPanGestureRecognizer(target: self, action: #selector(panSelectAction(_:)))
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baseView.addGestureRecognizer(pan)
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}
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let tap = UITapGestureRecognizer(target: self, action: #selector(tapAction(_:)))
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tap.delegate = self
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addGestureRecognizer(tap)
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}
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private func createBtn(_ title: String) -> UIButton {
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let btn = UIButton(type: .custom)
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btn.backgroundColor = .zl.previewBtnBgColor
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btn.setTitleColor(.zl.previewBtnTitleColor, for: .normal)
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btn.setTitle(title, for: .normal)
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btn.titleLabel?.font = .zl.font(ofSize: 17)
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return btn
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}
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private func canShowCameraBtn() -> Bool {
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if !ZLPhotoConfiguration.default().cameraConfiguration.allowTakePhoto, !ZLPhotoConfiguration.default().cameraConfiguration.allowRecordVideo {
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return false
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}
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return true
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}
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@objc public func showPreview(animate: Bool = true, sender: UIViewController) {
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show(preview: true, animate: animate, sender: sender)
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}
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@objc public func showPhotoLibrary(sender: UIViewController) {
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show(preview: false, animate: false, sender: sender)
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}
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/// 传入已选择的assets，并预览
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@objc public func previewAssets(
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sender: UIViewController,
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assets: [PHAsset],
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index: Int,
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isOriginal: Bool,
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showBottomViewAndSelectBtn: Bool = true
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) {
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assert(!assets.isEmpty, "Assets cannot be empty")
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let models = assets.zl.removeDuplicate().map { asset -> ZLPhotoModel in
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let m = ZLPhotoModel(asset: asset)
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m.isSelected = true
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return m
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}
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guard !models.isEmpty else {
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return
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}
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arrSelectedModels.removeAll()
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arrSelectedModels.append(contentsOf: models)
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self.sender = sender
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isSelectOriginal = isOriginal
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isHidden = true
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sender.view.addSubview(self)
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let vc = ZLPhotoPreviewController(photos: models, index: index, showBottomViewAndSelectBtn: showBottomViewAndSelectBtn)
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vc.autoSelectCurrentIfNotSelectAnyone = false
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let nav = getImageNav(rootViewController: vc)
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vc.backBlock = { [weak self] in
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self?.hide { [weak self] in
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self?.cancelBlock?()
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}
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}
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sender.showDetailViewController(nav, sender: nil)
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}
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private func show(preview: Bool, animate: Bool, sender: UIViewController) {
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self.preview = preview
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self.animate = animate
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self.sender = sender
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let status = PHPhotoLibrary.authorizationStatus()
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if status == .restricted || status == .denied {
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showNoAuthorityAlert()
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} else if status == .notDetermined {
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PHPhotoLibrary.requestAuthorization { status in
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ZLMainAsync {
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if status == .denied {
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self.showNoAuthorityAlert()
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} else if status == .authorized {
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if self.preview {
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self.loadPhotos()
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self.show()
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} else {
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self.photoLibraryBtnClick()
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}
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}
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}
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}
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sender.view.addSubview(self)
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} else {
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if preview {
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loadPhotos()
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show()
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} else {
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sender.view.addSubview(self)
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photoLibraryBtnClick()
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}
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}
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// Register for the album change notification when the status is limited, because the photoLibraryDidChange method will be repeated multiple times each time the album changes, causing the interface to refresh multiple times. So the album changes are not monitored in other authority.
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if #available(iOS 14.0, *), preview, PHPhotoLibrary.authorizationStatus(for: .readWrite) == .limited {
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PHPhotoLibrary.shared().register(self)
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}
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}
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private func loadPhotos() {
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arrDataSources.removeAll()
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let config = ZLPhotoConfiguration.default()
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ZLPhotoManager.getCameraRollAlbum(allowSelectImage: config.allowSelectImage, allowSelectVideo: config.allowSelectVideo) { [weak self] cameraRoll in
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guard let `self` = self else { return }
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var totalPhotos = ZLPhotoManager.fetchPhoto(in: cameraRoll.result, ascending: false, allowSelectImage: config.allowSelectImage, allowSelectVideo: config.allowSelectVideo, limitCount: config.maxPreviewCount)
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markSelected(source: &totalPhotos, selected: &self.arrSelectedModels)
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self.arrDataSources.append(contentsOf: totalPhotos)
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self.collectionView.reloadData()
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}
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}
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private func show() {
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frame = sender?.view.bounds ?? .zero
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collectionView.contentOffset = .zero
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if superview == nil {
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sender?.view.addSubview(self)
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}
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if let tabBar = sender?.tabBarController?.tabBar, !tabBar.isHidden {
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senderTabBarIsHidden = tabBar.isHidden
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tabBar.isHidden = true
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}
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if animate {
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backgroundColor = .zl.previewBgColor.withAlphaComponent(0)
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var frame = baseView.frame
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frame.origin.y = bounds.height
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baseView.frame = frame
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frame.origin.y -= baseViewHeight
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UIView.animate(withDuration: 0.2) {
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self.backgroundColor = .zl.previewBgColor
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self.baseView.frame = frame
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}
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}
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}
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private func hide(completion: (() -> Void)? = nil) {
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if animate {
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var frame = baseView.frame
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frame.origin.y += baseViewHeight
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UIView.animate(withDuration: 0.2, animations: {
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self.backgroundColor = .zl.previewBgColor.withAlphaComponent(0)
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self.baseView.frame = frame
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}) { _ in
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self.isHidden = true
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completion?()
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self.removeFromSuperview()
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}
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} else {
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isHidden = true
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completion?()
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removeFromSuperview()
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}
|
||
|
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if let temp = senderTabBarIsHidden {
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sender?.tabBarController?.tabBar.isHidden = temp
|
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}
|
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}
|
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|
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private func showNoAuthorityAlert() {
|
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let action = ZLCustomAlertAction(title: localLanguageTextValue(.ok), style: .default) { _ in
|
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ZLPhotoConfiguration.default().noAuthorityCallback?(.library)
|
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}
|
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showAlertController(title: nil, message: String(format: localLanguageTextValue(.noPhotoLibratyAuthority), getAppName()), style: .alert, actions: [action], sender: self.sender)
|
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}
|
||
|
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@objc private func tapAction(_ tap: UITapGestureRecognizer) {
|
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hide {
|
||
self.cancelBlock?()
|
||
}
|
||
}
|
||
|
||
@objc private func cameraBtnClick() {
|
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let config = ZLPhotoConfiguration.default()
|
||
if config.useCustomCamera {
|
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let camera = ZLCustomCamera()
|
||
camera.takeDoneBlock = { [weak self] image, videoUrl in
|
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self?.save(image: image, videoUrl: videoUrl)
|
||
}
|
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sender?.showDetailViewController(camera, sender: nil)
|
||
} else {
|
||
if !UIImagePickerController.isSourceTypeAvailable(.camera) {
|
||
showAlertView(localLanguageTextValue(.cameraUnavailable), sender)
|
||
} else if ZLPhotoManager.hasCameraAuthority() {
|
||
let picker = UIImagePickerController()
|
||
picker.delegate = self
|
||
picker.allowsEditing = false
|
||
picker.videoQuality = .typeHigh
|
||
picker.sourceType = .camera
|
||
picker.cameraDevice = config.cameraConfiguration.devicePosition.cameraDevice
|
||
if config.cameraConfiguration.showFlashSwitch {
|
||
picker.cameraFlashMode = .auto
|
||
} else {
|
||
picker.cameraFlashMode = .off
|
||
}
|
||
var mediaTypes: [String] = []
|
||
if config.cameraConfiguration.allowTakePhoto {
|
||
mediaTypes.append("public.image")
|
||
}
|
||
if config.cameraConfiguration.allowRecordVideo {
|
||
mediaTypes.append("public.movie")
|
||
}
|
||
picker.mediaTypes = mediaTypes
|
||
picker.videoMaximumDuration = TimeInterval(config.cameraConfiguration.maxRecordDuration)
|
||
sender?.showDetailViewController(picker, sender: nil)
|
||
} else {
|
||
showAlertView(String(format: localLanguageTextValue(.noCameraAuthority), getAppName()), sender)
|
||
}
|
||
}
|
||
}
|
||
|
||
@objc private func photoLibraryBtnClick() {
|
||
PHPhotoLibrary.shared().unregisterChangeObserver(self)
|
||
animate = false
|
||
showThumbnailViewController()
|
||
}
|
||
|
||
@objc private func cancelBtnClick() {
|
||
guard !arrSelectedModels.isEmpty else {
|
||
hide { [weak self] in
|
||
self?.cancelBlock?()
|
||
}
|
||
return
|
||
}
|
||
requestSelectPhoto()
|
||
}
|
||
|
||
@objc private func panSelectAction(_ pan: UIPanGestureRecognizer) {
|
||
let point = pan.location(in: collectionView)
|
||
if pan.state == .began {
|
||
let cp = baseView.convert(point, from: collectionView)
|
||
guard collectionView.frame.contains(cp) else {
|
||
panBeginPoint = .zero
|
||
return
|
||
}
|
||
panBeginPoint = point
|
||
} else if pan.state == .changed {
|
||
guard panBeginPoint != .zero else {
|
||
return
|
||
}
|
||
|
||
guard let indexPath = collectionView.indexPathForItem(at: panBeginPoint) else {
|
||
return
|
||
}
|
||
|
||
if panImageView == nil {
|
||
guard point.y < panBeginPoint.y else {
|
||
return
|
||
}
|
||
guard let cell = collectionView.cellForItem(at: indexPath) as? ZLThumbnailPhotoCell else {
|
||
return
|
||
}
|
||
panModel = arrDataSources[indexPath.row]
|
||
panCell = cell
|
||
panImageView = UIImageView(frame: cell.bounds)
|
||
panImageView?.contentMode = .scaleAspectFill
|
||
panImageView?.clipsToBounds = true
|
||
panImageView?.image = cell.imageView.image
|
||
cell.imageView.image = nil
|
||
addSubview(panImageView!)
|
||
}
|
||
panImageView?.center = convert(point, from: collectionView)
|
||
} else if pan.state == .cancelled || pan.state == .ended {
|
||
guard let pv = panImageView else {
|
||
return
|
||
}
|
||
let pvRect = baseView.convert(pv.frame, from: self)
|
||
var callBack = false
|
||
if pvRect.midY < -10 {
|
||
arrSelectedModels.removeAll()
|
||
arrSelectedModels.append(panModel!)
|
||
requestSelectPhoto()
|
||
callBack = true
|
||
}
|
||
|
||
panModel = nil
|
||
if !callBack {
|
||
let toRect = convert(panCell?.frame ?? .zero, from: collectionView)
|
||
UIView.animate(withDuration: 0.25, animations: {
|
||
self.panImageView?.frame = toRect
|
||
}) { _ in
|
||
self.panCell?.imageView.image = self.panImageView?.image
|
||
self.panCell = nil
|
||
self.panImageView?.removeFromSuperview()
|
||
self.panImageView = nil
|
||
}
|
||
} else {
|
||
panCell?.imageView.image = panImageView?.image
|
||
panImageView?.removeFromSuperview()
|
||
panImageView = nil
|
||
panCell = nil
|
||
}
|
||
}
|
||
}
|
||
|
||
private func requestSelectPhoto(viewController: UIViewController? = nil) {
|
||
guard !arrSelectedModels.isEmpty else {
|
||
selectImageBlock?([], isSelectOriginal)
|
||
hide()
|
||
viewController?.dismiss(animated: true, completion: nil)
|
||
return
|
||
}
|
||
|
||
let config = ZLPhotoConfiguration.default()
|
||
|
||
if config.allowMixSelect {
|
||
let videoCount = arrSelectedModels.filter { $0.type == .video }.count
|
||
|
||
if videoCount > config.maxVideoSelectCount {
|
||
showAlertView(String(format: localLanguageTextValue(.exceededMaxVideoSelectCount), ZLPhotoConfiguration.default().maxVideoSelectCount), viewController)
|
||
return
|
||
} else if videoCount < config.minVideoSelectCount {
|
||
showAlertView(String(format: localLanguageTextValue(.lessThanMinVideoSelectCount), ZLPhotoConfiguration.default().minVideoSelectCount), viewController)
|
||
return
|
||
}
|
||
}
|
||
|
||
let hud = ZLProgressHUD.show(timeout: ZLPhotoConfiguration.default().timeout)
|
||
|
||
var timeout = false
|
||
hud.timeoutBlock = { [weak self] in
|
||
timeout = true
|
||
showAlertView(localLanguageTextValue(.timeout), viewController ?? self?.sender)
|
||
self?.fetchImageQueue.cancelAllOperations()
|
||
}
|
||
|
||
let isOriginal = config.allowSelectOriginal ? isSelectOriginal : config.alwaysRequestOriginal
|
||
|
||
let callback = { [weak self] (sucModels: [ZLResultModel], errorAssets: [PHAsset], errorIndexs: [Int]) in
|
||
hud.hide()
|
||
|
||
func call() {
|
||
self?.selectImageBlock?(sucModels, isOriginal)
|
||
if !errorAssets.isEmpty {
|
||
self?.selectImageRequestErrorBlock?(errorAssets, errorIndexs)
|
||
}
|
||
}
|
||
|
||
if let vc = viewController {
|
||
self?.isHidden = true
|
||
self?.animate = false
|
||
vc.dismiss(animated: true) {
|
||
call()
|
||
self?.hide()
|
||
}
|
||
} else {
|
||
self?.hide(completion: {
|
||
call()
|
||
})
|
||
}
|
||
|
||
self?.arrSelectedModels.removeAll()
|
||
self?.arrDataSources.removeAll()
|
||
}
|
||
|
||
var results: [ZLResultModel?] = Array(repeating: nil, count: arrSelectedModels.count)
|
||
var errorAssets: [PHAsset] = []
|
||
var errorIndexs: [Int] = []
|
||
|
||
var sucCount = 0
|
||
let totalCount = arrSelectedModels.count
|
||
|
||
for (i, m) in arrSelectedModels.enumerated() {
|
||
let operation = ZLFetchImageOperation(model: m, isOriginal: isOriginal) { image, asset in
|
||
guard !timeout else { return }
|
||
|
||
sucCount += 1
|
||
|
||
if let image = image {
|
||
let isEdited = m.editImage != nil && !config.saveNewImageAfterEdit
|
||
let model = ZLResultModel(
|
||
asset: asset ?? m.asset,
|
||
image: image,
|
||
isEdited: isEdited,
|
||
editModel: isEdited ? m.editImageModel : nil,
|
||
index: i
|
||
)
|
||
results[i] = model
|
||
zl_debugPrint("ZLPhotoBrowser: suc request \(i)")
|
||
} else {
|
||
errorAssets.append(m.asset)
|
||
errorIndexs.append(i)
|
||
zl_debugPrint("ZLPhotoBrowser: failed request \(i)")
|
||
}
|
||
|
||
guard sucCount >= totalCount else { return }
|
||
|
||
callback(
|
||
results.compactMap { $0 },
|
||
errorAssets,
|
||
errorIndexs
|
||
)
|
||
}
|
||
fetchImageQueue.addOperation(operation)
|
||
}
|
||
}
|
||
|
||
private func showThumbnailViewController() {
|
||
ZLPhotoManager.getCameraRollAlbum(allowSelectImage: ZLPhotoConfiguration.default().allowSelectImage, allowSelectVideo: ZLPhotoConfiguration.default().allowSelectVideo) { [weak self] cameraRoll in
|
||
guard let `self` = self else { return }
|
||
let nav: ZLImageNavController
|
||
if ZLPhotoUIConfiguration.default().style == .embedAlbumList {
|
||
let tvc = ZLThumbnailViewController(albumList: cameraRoll)
|
||
nav = self.getImageNav(rootViewController: tvc)
|
||
} else {
|
||
nav = self.getImageNav(rootViewController: ZLAlbumListController())
|
||
let tvc = ZLThumbnailViewController(albumList: cameraRoll)
|
||
nav.pushViewController(tvc, animated: true)
|
||
}
|
||
if deviceIsiPad() {
|
||
self.sender?.present(nav, animated: true, completion: nil)
|
||
} else {
|
||
self.sender?.showDetailViewController(nav, sender: nil)
|
||
}
|
||
}
|
||
}
|
||
|
||
private func showPreviewController(_ models: [ZLPhotoModel], index: Int) {
|
||
let vc = ZLPhotoPreviewController(photos: models, index: index)
|
||
let nav = getImageNav(rootViewController: vc)
|
||
vc.backBlock = { [weak self, weak nav] in
|
||
guard let `self` = self else { return }
|
||
self.isSelectOriginal = nav?.isSelectedOriginal ?? false
|
||
self.arrSelectedModels.removeAll()
|
||
self.arrSelectedModels.append(contentsOf: nav?.arrSelectedModels ?? [])
|
||
markSelected(source: &self.arrDataSources, selected: &self.arrSelectedModels)
|
||
self.collectionView.reloadItems(at: self.collectionView.indexPathsForVisibleItems)
|
||
self.changeCancelBtnTitle()
|
||
}
|
||
sender?.showDetailViewController(nav, sender: nil)
|
||
}
|
||
|
||
private func showEditImageVC(model: ZLPhotoModel) {
|
||
let hud = ZLProgressHUD.show()
|
||
|
||
ZLPhotoManager.fetchImage(for: model.asset, size: model.previewSize) { [weak self] image, isDegraded in
|
||
if !isDegraded {
|
||
if let image = image {
|
||
ZLEditImageViewController.showEditImageVC(parentVC: self?.sender, image: image, editModel: model.editImageModel) { [weak self] ei, editImageModel in
|
||
model.isSelected = true
|
||
model.editImage = ei
|
||
model.editImageModel = editImageModel
|
||
self?.arrSelectedModels.append(model)
|
||
ZLPhotoConfiguration.default().didSelectAsset?(model.asset)
|
||
|
||
self?.requestSelectPhoto()
|
||
}
|
||
} else {
|
||
showAlertView(localLanguageTextValue(.imageLoadFailed), self?.sender)
|
||
}
|
||
hud.hide()
|
||
}
|
||
}
|
||
}
|
||
|
||
private func showEditVideoVC(model: ZLPhotoModel) {
|
||
let config = ZLPhotoConfiguration.default()
|
||
var requestAvAssetID: PHImageRequestID?
|
||
|
||
let hud = ZLProgressHUD.show(timeout: config.timeout)
|
||
hud.timeoutBlock = { [weak self] in
|
||
showAlertView(localLanguageTextValue(.timeout), self?.sender)
|
||
if let requestAvAssetID = requestAvAssetID {
|
||
PHImageManager.default().cancelImageRequest(requestAvAssetID)
|
||
}
|
||
}
|
||
|
||
func inner_showEditVideoVC(_ avAsset: AVAsset) {
|
||
let vc = ZLEditVideoViewController(avAsset: avAsset)
|
||
vc.editFinishBlock = { [weak self] url in
|
||
if let url = url {
|
||
ZLPhotoManager.saveVideoToAlbum(url: url) { [weak self] suc, asset in
|
||
if suc, let asset = asset {
|
||
let m = ZLPhotoModel(asset: asset)
|
||
m.isSelected = true
|
||
self?.arrSelectedModels.removeAll()
|
||
self?.arrSelectedModels.append(m)
|
||
config.didSelectAsset?(asset)
|
||
|
||
self?.requestSelectPhoto()
|
||
} else {
|
||
showAlertView(localLanguageTextValue(.saveVideoError), self?.sender)
|
||
}
|
||
}
|
||
} else {
|
||
self?.arrSelectedModels.removeAll()
|
||
model.isSelected = true
|
||
self?.arrSelectedModels.append(model)
|
||
config.didSelectAsset?(model.asset)
|
||
|
||
self?.requestSelectPhoto()
|
||
}
|
||
}
|
||
vc.modalPresentationStyle = .fullScreen
|
||
sender?.showDetailViewController(vc, sender: nil)
|
||
}
|
||
|
||
// 提前fetch一下 avasset
|
||
requestAvAssetID = ZLPhotoManager.fetchAVAsset(forVideo: model.asset) { [weak self] avAsset, _ in
|
||
hud.hide()
|
||
if let avAsset = avAsset {
|
||
inner_showEditVideoVC(avAsset)
|
||
} else {
|
||
showAlertView(localLanguageTextValue(.timeout), self?.sender)
|
||
}
|
||
}
|
||
}
|
||
|
||
private func getImageNav(rootViewController: UIViewController) -> ZLImageNavController {
|
||
let nav = ZLImageNavController(rootViewController: rootViewController)
|
||
nav.modalPresentationStyle = .fullScreen
|
||
nav.selectImageBlock = { [weak self, weak nav] in
|
||
self?.isSelectOriginal = nav?.isSelectedOriginal ?? false
|
||
self?.arrSelectedModels.removeAll()
|
||
self?.arrSelectedModels.append(contentsOf: nav?.arrSelectedModels ?? [])
|
||
self?.requestSelectPhoto(viewController: nav)
|
||
}
|
||
|
||
nav.cancelBlock = { [weak self] in
|
||
self?.hide {
|
||
self?.cancelBlock?()
|
||
}
|
||
}
|
||
nav.isSelectedOriginal = isSelectOriginal
|
||
nav.arrSelectedModels.removeAll()
|
||
nav.arrSelectedModels.append(contentsOf: arrSelectedModels)
|
||
|
||
return nav
|
||
}
|
||
|
||
private func save(image: UIImage?, videoUrl: URL?) {
|
||
if let image = image {
|
||
let hud = ZLProgressHUD.show()
|
||
ZLPhotoManager.saveImageToAlbum(image: image) { [weak self] suc, asset in
|
||
hud.hide()
|
||
if suc, let asset = asset {
|
||
let model = ZLPhotoModel(asset: asset)
|
||
self?.handleDataArray(newModel: model)
|
||
} else {
|
||
showAlertView(localLanguageTextValue(.saveImageError), self?.sender)
|
||
}
|
||
}
|
||
} else if let videoUrl = videoUrl {
|
||
let hud = ZLProgressHUD.show()
|
||
ZLPhotoManager.saveVideoToAlbum(url: videoUrl) { [weak self] suc, asset in
|
||
hud.hide()
|
||
if suc, let at = asset {
|
||
let model = ZLPhotoModel(asset: at)
|
||
self?.handleDataArray(newModel: model)
|
||
} else {
|
||
showAlertView(localLanguageTextValue(.saveVideoError), self?.sender)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
private func handleDataArray(newModel: ZLPhotoModel) {
|
||
arrDataSources.insert(newModel, at: 0)
|
||
let config = ZLPhotoConfiguration.default()
|
||
|
||
var canSelect = true
|
||
// If mixed selection is not allowed, and the newModel type is video, it will not be selected.
|
||
if !config.allowMixSelect, newModel.type == .video {
|
||
canSelect = false
|
||
}
|
||
// 单选模式，且不显示选择按钮时，不允许选择
|
||
if config.maxSelectCount == 1, !config.showSelectBtnWhenSingleSelect {
|
||
canSelect = false
|
||
}
|
||
if canSelect, canAddModel(newModel, currentSelectCount: arrSelectedModels.count, sender: sender, showAlert: false) {
|
||
if !shouldDirectEdit(newModel) {
|
||
newModel.isSelected = true
|
||
arrSelectedModels.append(newModel)
|
||
config.didSelectAsset?(newModel.asset)
|
||
|
||
if config.callbackDirectlyAfterTakingPhoto {
|
||
requestSelectPhoto()
|
||
}
|
||
}
|
||
}
|
||
|
||
let insertIndexPath = IndexPath(row: 0, section: 0)
|
||
collectionView.performBatchUpdates({
|
||
self.collectionView.insertItems(at: [insertIndexPath])
|
||
}) { _ in
|
||
self.collectionView.scrollToItem(at: insertIndexPath, at: .centeredHorizontally, animated: true)
|
||
self.collectionView.reloadItems(at: self.collectionView.indexPathsForVisibleItems)
|
||
}
|
||
|
||
changeCancelBtnTitle()
|
||
}
|
||
|
||
}
|
||
|
||
extension ZLPhotoPreviewSheet: UIGestureRecognizerDelegate {
|
||
|
||
override public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
|
||
let location = gestureRecognizer.location(in: self)
|
||
return !baseView.frame.contains(location)
|
||
}
|
||
|
||
}
|
||
|
||
extension ZLPhotoPreviewSheet: UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
|
||
|
||
public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
|
||
let m = arrDataSources[indexPath.row]
|
||
let w = CGFloat(m.asset.pixelWidth)
|
||
let h = CGFloat(m.asset.pixelHeight)
|
||
let scale = min(1.7, max(0.5, w / h))
|
||
return CGSize(width: collectionView.frame.height * scale, height: collectionView.frame.height)
|
||
}
|
||
|
||
public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
|
||
placeholderLabel.isHidden = arrSelectedModels.isEmpty
|
||
return arrDataSources.count
|
||
}
|
||
|
||
public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
|
||
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: ZLThumbnailPhotoCell.zl.identifier, for: indexPath) as! ZLThumbnailPhotoCell
|
||
|
||
let config = ZLPhotoConfiguration.default()
|
||
|
||
let model = arrDataSources[indexPath.row]
|
||
|
||
cell.selectedBlock = { [weak self, weak cell] isSelected in
|
||
guard let `self` = self else { return }
|
||
if !isSelected {
|
||
guard canAddModel(model, currentSelectCount: self.arrSelectedModels.count, sender: self.sender) else {
|
||
return
|
||
}
|
||
if !self.shouldDirectEdit(model) {
|
||
model.isSelected = true
|
||
self.arrSelectedModels.append(model)
|
||
config.didSelectAsset?(model.asset)
|
||
|
||
cell?.btnSelect.isSelected = true
|
||
self.refreshCellIndex()
|
||
}
|
||
} else {
|
||
cell?.btnSelect.isSelected = false
|
||
model.isSelected = false
|
||
self.arrSelectedModels.removeAll { $0 == model }
|
||
|
||
config.didDeselectAsset?(model.asset)
|
||
self.refreshCellIndex()
|
||
}
|
||
|
||
self.changeCancelBtnTitle()
|
||
}
|
||
|
||
cell.indexLabel.isHidden = true
|
||
if config.showSelectedIndex {
|
||
for (index, selM) in arrSelectedModels.enumerated() {
|
||
if model == selM {
|
||
setCellIndex(cell, showIndexLabel: true, index: index + 1)
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
setCellMaskView(cell, isSelected: model.isSelected, model: model)
|
||
|
||
cell.model = model
|
||
|
||
return cell
|
||
}
|
||
|
||
public func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
|
||
guard let c = cell as? ZLThumbnailPhotoCell else {
|
||
return
|
||
}
|
||
let model = arrDataSources[indexPath.row]
|
||
setCellMaskView(c, isSelected: model.isSelected, model: model)
|
||
}
|
||
|
||
public func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
|
||
guard let cell = collectionView.cellForItem(at: indexPath) as? ZLThumbnailPhotoCell else {
|
||
return
|
||
}
|
||
|
||
if !ZLPhotoConfiguration.default().allowPreviewPhotos {
|
||
cell.btnSelectClick()
|
||
return
|
||
}
|
||
|
||
if !cell.enableSelect, ZLPhotoConfiguration.default().showInvalidMask {
|
||
return
|
||
}
|
||
let model = arrDataSources[indexPath.row]
|
||
|
||
if shouldDirectEdit(model) {
|
||
return
|
||
}
|
||
let config = ZLPhotoConfiguration.default()
|
||
let hud = ZLProgressHUD.show()
|
||
|
||
ZLPhotoManager.getCameraRollAlbum(allowSelectImage: config.allowSelectImage, allowSelectVideo: config.allowSelectVideo) { [weak self] cameraRoll in
|
||
defer {
|
||
hud.hide()
|
||
}
|
||
|
||
guard let `self` = self else {
|
||
return
|
||
}
|
||
|
||
var totalPhotos = ZLPhotoManager.fetchPhoto(in: cameraRoll.result, ascending: config.sortAscending, allowSelectImage: config.allowSelectImage, allowSelectVideo: config.allowSelectVideo)
|
||
markSelected(source: &totalPhotos, selected: &self.arrSelectedModels)
|
||
let defaultIndex = config.sortAscending ? totalPhotos.count - 1 : 0
|
||
var index: Int?
|
||
// last和first效果一样，只是排序方式不同时候分别从前后开始查找可以更快命中
|
||
if config.sortAscending {
|
||
index = totalPhotos.lastIndex { $0 == model }
|
||
} else {
|
||
index = totalPhotos.firstIndex { $0 == model }
|
||
}
|
||
|
||
self.showPreviewController(totalPhotos, index: index ?? defaultIndex)
|
||
}
|
||
}
|
||
|
||
private func shouldDirectEdit(_ model: ZLPhotoModel) -> Bool {
|
||
let config = ZLPhotoConfiguration.default()
|
||
|
||
let canEditImage = config.editAfterSelectThumbnailImage &&
|
||
config.allowEditImage &&
|
||
config.maxSelectCount == 1 &&
|
||
model.type.rawValue < ZLPhotoModel.MediaType.video.rawValue
|
||
|
||
let canEditVideo = (config.editAfterSelectThumbnailImage &&
|
||
config.allowEditVideo &&
|
||
model.type == .video &&
|
||
config.maxSelectCount == 1) ||
|
||
(config.allowEditVideo &&
|
||
model.type == .video &&
|
||
!config.allowMixSelect &&
|
||
config.cropVideoAfterSelectThumbnail)
|
||
|
||
// 当前未选择图片 或已经选择了一张并且点击的是已选择的图片
|
||
let flag = arrSelectedModels.isEmpty || (arrSelectedModels.count == 1 && arrSelectedModels.first?.ident == model.ident)
|
||
|
||
if canEditImage, flag {
|
||
showEditImageVC(model: model)
|
||
} else if canEditVideo, flag {
|
||
showEditVideoVC(model: model)
|
||
}
|
||
|
||
return flag && (canEditImage || canEditVideo)
|
||
}
|
||
|
||
private func setCellIndex(_ cell: ZLThumbnailPhotoCell?, showIndexLabel: Bool, index: Int) {
|
||
guard ZLPhotoConfiguration.default().showSelectedIndex else {
|
||
return
|
||
}
|
||
cell?.index = index
|
||
cell?.indexLabel.isHidden = !showIndexLabel
|
||
}
|
||
|
||
private func refreshCellIndex() {
|
||
let config = ZLPhotoConfiguration.default()
|
||
let cameraIsEnable = arrSelectedModels.count < config.maxSelectCount
|
||
cameraBtn.alpha = cameraIsEnable ? 1 : 0.3
|
||
cameraBtn.isEnabled = cameraIsEnable
|
||
|
||
let showIndex = config.showSelectedIndex
|
||
let showMask = config.showSelectedMask || config.showInvalidMask
|
||
|
||
guard showIndex || showMask else {
|
||
return
|
||
}
|
||
|
||
let visibleIndexPaths = collectionView.indexPathsForVisibleItems
|
||
|
||
visibleIndexPaths.forEach { indexPath in
|
||
guard let cell = collectionView.cellForItem(at: indexPath) as? ZLThumbnailPhotoCell else {
|
||
return
|
||
}
|
||
let m = arrDataSources[indexPath.row]
|
||
|
||
var show = false
|
||
var idx = 0
|
||
var isSelected = false
|
||
for (index, selM) in arrSelectedModels.enumerated() {
|
||
if m == selM {
|
||
show = true
|
||
idx = index + 1
|
||
isSelected = true
|
||
break
|
||
}
|
||
}
|
||
if showIndex {
|
||
setCellIndex(cell, showIndexLabel: show, index: idx)
|
||
}
|
||
if showMask {
|
||
setCellMaskView(cell, isSelected: isSelected, model: m)
|
||
}
|
||
}
|
||
}
|
||
|
||
private func setCellMaskView(_ cell: ZLThumbnailPhotoCell, isSelected: Bool, model: ZLPhotoModel) {
|
||
cell.coverView.isHidden = true
|
||
cell.enableSelect = true
|
||
let config = ZLPhotoConfiguration.default()
|
||
|
||
if isSelected {
|
||
cell.coverView.backgroundColor = .zl.selectedMaskColor
|
||
cell.coverView.isHidden = !config.showSelectedMask
|
||
if config.showSelectedBorder {
|
||
cell.layer.borderWidth = 4
|
||
}
|
||
} else {
|
||
let selCount = arrSelectedModels.count
|
||
if selCount < config.maxSelectCount {
|
||
if config.allowMixSelect {
|
||
let videoCount = arrSelectedModels.filter { $0.type == .video }.count
|
||
if videoCount >= config.maxVideoSelectCount, model.type == .video {
|
||
cell.coverView.backgroundColor = .zl.invalidMaskColor
|
||
cell.coverView.isHidden = !config.showInvalidMask
|
||
cell.enableSelect = false
|
||
} else if (config.maxSelectCount - selCount) <= (config.minVideoSelectCount - videoCount), model.type != .video {
|
||
cell.coverView.backgroundColor = .zl.invalidMaskColor
|
||
cell.coverView.isHidden = !config.showInvalidMask
|
||
cell.enableSelect = false
|
||
}
|
||
} else if selCount > 0 {
|
||
cell.coverView.backgroundColor = .zl.invalidMaskColor
|
||
cell.coverView.isHidden = (!config.showInvalidMask || model.type != .video)
|
||
cell.enableSelect = model.type != .video
|
||
}
|
||
} else if selCount >= config.maxSelectCount {
|
||
cell.coverView.backgroundColor = .zl.invalidMaskColor
|
||
cell.coverView.isHidden = !config.showInvalidMask
|
||
cell.enableSelect = false
|
||
}
|
||
if config.showSelectedBorder {
|
||
cell.layer.borderWidth = 0
|
||
}
|
||
}
|
||
}
|
||
|
||
private func changeCancelBtnTitle() {
|
||
if arrSelectedModels.count > 0 {
|
||
cancelBtn.setTitle(String(format: "%@(%ld)", localLanguageTextValue(.done), arrSelectedModels.count), for: .normal)
|
||
cancelBtn.setTitleColor(.zl.previewBtnHighlightTitleColor, for: .normal)
|
||
} else {
|
||
cancelBtn.setTitle(localLanguageTextValue(.cancel), for: .normal)
|
||
cancelBtn.setTitleColor(.zl.previewBtnTitleColor, for: .normal)
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
extension ZLPhotoPreviewSheet: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
|
||
|
||
public func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
|
||
picker.dismiss(animated: true) {
|
||
let image = info[.originalImage] as? UIImage
|
||
let url = info[.mediaURL] as? URL
|
||
self.save(image: image, videoUrl: url)
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
extension ZLPhotoPreviewSheet: PHPhotoLibraryChangeObserver {
|
||
|
||
public func photoLibraryDidChange(_ changeInstance: PHChange) {
|
||
PHPhotoLibrary.shared().unregisterChangeObserver(self)
|
||
ZLMainAsync {
|
||
self.loadPhotos()
|
||
}
|
||
}
|
||
|
||
}
|