214 lines
9.1 KiB
Swift
214 lines
9.1 KiB
Swift
//
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// AddViewController.swift
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// MusicPlayer
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//
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// Created by Mr.Zhou on 2024/3/27.
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//
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import UIKit
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import AVFoundation
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import Photos
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class AddViewController: UIViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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//设置圆角
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view.layer.masksToBounds = true
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view.layer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMinYCorner]
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view.layer.cornerRadius = 18*width
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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NotificationCenter.notificationKey.add(observer: self, selector: #selector(successfullCreateAction), notificationName: .creat_music)
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}
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override func viewWillDisappear(_ animated: Bool) {
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super.viewWillDisappear(animated)
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NotificationCenter.default.removeObserver(self)
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}
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//前往相册获取音视频文件
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@IBAction func action1Click(_ sender: UIButton) {
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getVideo()
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}
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//前往文件夹获取音视频文件
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@IBAction func action2Click(_ sender: UIButton) {
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var documentPicker:UIDocumentPickerViewController?
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if #available(iOS 14, *) {
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//访问原始路径，展示类型为视频，音频
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documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: [.mp3,.mpeg4Movie,.mpeg4Audio, .audio, .movie], asCopy: false)
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}else {
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//允许展示的数据格式(视频，音频)
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let types:[String] = ["public.movie","public.audio"]
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// 创建并配置UIDocumentPickerViewController实例
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documentPicker = UIDocumentPickerViewController(documentTypes: types, in: .open)
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}
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documentPicker!.delegate = self
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documentPicker!.modalPresentationStyle = .formSheet
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// 展示文档选择器
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present(documentPicker!, animated: true)
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}
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//创建一个新的音乐实体
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private func createMusic(_ title:String, duration:Double, cover:UIImage, url:URL) {
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//创建一个沙盒地址存放视频/音频
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let number = Int(arc4random_uniform(8999) + 1000)
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let path = "\(number)\(Date().timeZone().toString(.custom("HH:mm:ss-MMMdd-YYYY")))\(title)"
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//视频沙盒保存地址
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let videoSaveUrl = URL(fileURLWithPath: NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!).appendingPathComponent(path).path
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let urlAsset = AVURLAsset(url:url)
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let session = AVAssetExportSession(asset: urlAsset, presetName: AVAssetExportPresetHighestQuality)
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session?.outputURL = URL(fileURLWithPath: videoSaveUrl)
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session?.outputFileType = .mp4
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session?.exportAsynchronously(completionHandler: {
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let exportState = session?.status
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switch exportState{
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case .failed:
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print("Export Failed:\(String(describing: session?.error))")
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break
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case .completed:
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//导出完成
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print("Export Complete")
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break
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default:
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break
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}
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})
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//处理完成
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let music = MusicModel.create()
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music.identifier = Date().timeZone().toString(.custom("HH:mm:ss/MM-dd/YYYY"))
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//获取路径最后一个组件作为标题
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music.title = title
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music.duration = duration
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music.cover = cover.pngData()!
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music.isLocal = false
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music.path = path
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music.creationTime = Date().timeZone()
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music.lastTime = nil
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MusicModel.save()
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print("Resources have been successfully accessed")
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}
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@objc private func successfullCreateAction() {
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DispatchQueue.main.async {
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[weak self] in
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self?.dismiss(animated: true)
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}
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}
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}
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//MARK: - 相册与文件选择处理
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extension AddViewController: UIImagePickerControllerDelegate & UINavigationControllerDelegate, UIDocumentPickerDelegate {
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//取消
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func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
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picker.dismiss(animated: true) {
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print("Failure to complete selection event")
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}
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}
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//获取选择的图像内容
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func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
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picker.dismiss(animated: true) {[weak self] in
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let videoUrl = info[.mediaURL] as! URL
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print(videoUrl)
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//根据路径设置图片
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let asset = AVURLAsset(url: videoUrl, options: nil)
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print("Select the real path of the file：\(videoUrl)")
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let data = self?.setPathToData(videoUrl, asset: asset)
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self?.createMusic(data!.2, duration: data!.0, cover: data!.1, url: videoUrl)
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NotificationCenter.notificationKey.post(notificationName: .creat_music)
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// //更新选择视频
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// picker.dismiss(animated: true) {
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// [weak self] in
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// //获取资源库信息
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// guard let passet = info[.phAsset] as? PHAsset else {
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// print("Selected resources failed to load")
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// return
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// }
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// //视频数据选项
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// let options:PHVideoRequestOptions = .init()
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// //视频保持原始版本
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// options.version = .original
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// options.deliveryMode = .automatic
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// //开通网络访问权限
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//// options.isNetworkAccessAllowed = true
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// PHImageManager.default().requestAVAsset(forVideo: passet, options: options) { [weak self] (asset, audioMix, info) in
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// var videoUrl:URL?
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// guard let urlAsset = asset as? AVURLAsset else {
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// print("Selected resources failed to load")
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// return
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// }
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// videoUrl = urlAsset.url as URL
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// print("Select the real path of the file：\(videoUrl!)")
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// let data = self?.setPathToData(videoUrl!, asset: urlAsset)
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// self?.createMusic(data!.2, duration: data!.0, cover: data!.1, path: videoUrl!)
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// NotificationCenter.notificationKey.post(notificationName: .creat_music)
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// }
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// }
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}
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}
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//文件选择
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func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
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guard let selectedFileURL = urls.first else {
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return
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}
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progressData(selectedFileURL)
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}
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func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
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// 用户取消选取
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print("Failure to complete selection event")
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}
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//安全协议加载用户选择的数据
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private func progressData(_ url:URL) {
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//获取是否能够安全访问路径权限
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let authozied = url.startAccessingSecurityScopedResource()
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if authozied == true {
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//允许安全访问，通过文件协调器读取文件真实地址
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let fileCoordinator = NSFileCoordinator()
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fileCoordinator.coordinate(readingItemAt: url, options: .withoutChanges, error: nil) { [weak self] (newUrl) in
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// 处理选取的音频文件
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print("Select the real path of the file：\(newUrl)")
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let data = self?.setPathToData(newUrl, asset: .init(url: newUrl))
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self?.createMusic(data!.2, duration: data!.0, cover: data!.1, url: newUrl)
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NotificationCenter.notificationKey.post(notificationName: .creat_music)
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}
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}else {
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print("Selected resources failed to load")
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}
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//停止安全访问权限
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url.stopAccessingSecurityScopedResource()
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}
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//根据真实路径获取视频/音频长度，第一帧，标题
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private func setPathToData(_ url:URL, asset:AVURLAsset) -> (TimeInterval,UIImage,String){
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//长度
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var duration:TimeInterval = 0
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let time = asset.duration
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// if #available(iOS 16, *) {
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// do {
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// time = try await asset.load(.duration)
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// } catch {
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// print("Conversion to time failed")
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// }
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// }else {
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// time = asset.duration
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// }
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duration = CMTimeGetSeconds(time)
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//获取第一帧
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let gen = AVAssetImageGenerator(asset: asset)
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gen.appliesPreferredTrackTransform = true
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//获取时间点
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let firstTime = CMTimeMakeWithSeconds(0.0, preferredTimescale: 1)
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var actualTime:CMTime = CMTimeMakeWithSeconds(0, preferredTimescale: 0)
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var firstImage:UIImage!
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do {
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//获取第一帧作为封面
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let image = try gen.copyCGImage(at: firstTime, actualTime: &actualTime)
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firstImage = UIImage(cgImage: image)
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} catch {
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//获取失败
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print("Failed to get file the first image")
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//给予初始值
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firstImage = .init(named: "End Of Days")
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}
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//获取地址最后一组内容作为标题
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let title:String = url.lastPathComponent
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return (duration,firstImage,title)
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}
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}
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