1010 lines
41 KiB
Swift
1010 lines
41 KiB
Swift
//
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// MP_PlayerManager.swift
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// MusicPlayer
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//
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// Created by Mr.Zhou on 2024/5/10.
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//
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import UIKit
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import AVFoundation
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import MediaPlayer
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import AVKit
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import Kingfisher
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///播放器播放状态
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enum MP_PlayerStateType:Int {
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///未启动
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case Null = 0
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///运行中
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case Playing = 1
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///暂停中
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case Pause = 2
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}
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///播放器播放方式
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enum MP_PlayerPlayType:Int {
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///列表顺序播放
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case normal = 0
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///列表随机播放
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case random = 1
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///单曲播放（当前音乐无限循环）
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case single = 2
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var title:String{
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switch self {
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case .normal:
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return "顺序播放"
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case .random:
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return "随机播放"
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case .single:
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return "单曲循环"
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}
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}
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}
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///计时器状态
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enum MP_TimerStateType:Int {
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///运行
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case Resume = 0
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///暂停
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case Suspend = 1
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}
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///播放器启动时执行事件（播放的音乐）
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typealias MP_PlayTimerStartAction = () -> Void
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///播放器运行时执行事件(当前时间值，最大时间值)
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typealias MP_PlayTimerRunAction = (_ currentTime:TimeInterval, _ duration:TimeInterval) -> Void
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///播放器结束时执行事件
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typealias MP_PlayTimerEndAction = () -> Void
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///播放器暂停时执行事件
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typealias MP_PlayTimerPauseAction = () -> Void
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///播放器继续时执行事件
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typealias MP_PlayTimerResumeAction = () -> Void
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///播放器终止时执行事件
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typealias MP_PlayTimerStopAction = () -> Void
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///播放器调整进度时执行事件
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typealias MP_PlayTimerEditEndAction = () -> Void
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///播放器缓存值执行事件
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typealias MP_PlayCacheValueAction = (_ currentValue:TimeInterval, _ duration:TimeInterval) -> Void
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///播放器
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class MP_PlayerManager:NSObject{
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///控制器单例
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static let shared = MP_PlayerManager()
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///播放器
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lazy var player:AVPlayer = {
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let player = AVPlayer()
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player.rate = 1
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return player
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}()
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///播放器视图
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lazy var videoLayer:AVPlayerLayer = {
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let layer:AVPlayerLayer = .init(player: player)
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layer.videoGravity = .resizeAspect
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layer.backgroundColor = UIColor.black.cgColor
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return layer
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}()
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//远程控制中心
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var center:MPRemoteCommandCenter?{
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didSet{
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print("更新了远程控制中心")
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}
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}
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///延迟计时器
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private var timer:DispatchSourceTimer?
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///延迟计时值
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private var times:TimeInterval = 0
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///计时器队列
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private var queue:DispatchQueue?
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///load模块
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var loadPlayer:MPPositive_PlayerLoadViewModel!{
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willSet{
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DispatchQueue.main.async {
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[weak self] in
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guard let self = self else {return}
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guard loadPlayer != nil else {
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if newValue != nil {
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//当load模块接受到新值的时候，发出通知，提醒底部模块状态切换
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NotificationCenter.notificationKey.post(notificationName: .pup_bottom_show)
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}
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return
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}
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if newValue != nil {
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//当load模块接受到新值的时候，发出通知，提醒底部模块状态切换
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NotificationCenter.notificationKey.post(notificationName: .pup_bottom_show)
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}else {
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//用户清空了load模块，隐藏播放器
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NotificationCenter.notificationKey.post(notificationName: .player_delete_list)
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playState = .Null
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player.pause()
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center?.playCommand.removeTarget(self)
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center?.pauseCommand.removeTarget(self)
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center?.nextTrackCommand.removeTarget(self)
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center?.previousTrackCommand.removeTarget(self)
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center?.changePlaybackPositionCommand.removeTarget(self)
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center = nil
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do {
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try AVAudioSession.sharedInstance().setActive(false)
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} catch {
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print("Error deactivating audio session: \(error)")
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}
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}
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}
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}
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}
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//当前音乐的字典
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private var currentInfo:[String:Any]?
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//是否展示最后一首状态
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private var isLast:Bool = false
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//设置是否页面展示最后一首状态
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func setLastStatus(bool:Bool) {
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isLast = bool
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}
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//当前播放器状态
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private var playState:MP_PlayerStateType = .Null{
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didSet{
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//当播放器状态发生变化时，对播放器按钮状态进行切换
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NotificationCenter.notificationKey.post(notificationName: .switch_player_status, object: playState)
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}
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}
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//是否因为广告原因延迟了播放（当广告加载时，延迟播放器状态切换）
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// var isAdLate:Bool? = false{
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// didSet{
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// DispatchQueue.main.asyncAfter(deadline: .now()) {
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// [weak self] in
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// guard let self = self else {return}
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// guard let ad = isAdLate, loadPlayer?.currentVideo != nil else {return}
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// //当监听到插页广告的展示或消失时
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// if ad == true {
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// //展示插页广告中
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// switch playState {
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// case .Null://当前音乐加载中
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// //直接暂停音乐
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// player.pause()
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// case .Playing://当前音乐播放中
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// //直接暂停音乐
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// player.pause()
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// case .Pause://当前音乐暂停中
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// //继续暂停
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// player.pause()
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// }
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// }else {
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// //插页广告销毁了
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// switch playState {
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// case .Null://当前音乐加载中
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// //判断音乐本身是否有足够数据播放
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// if loadPlayer?.currentVideo?.resourcePlayerItem?.isPlaybackLikelyToKeepUp == true {
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// //具备足够的数据，让音乐恢复播放
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// playState = .Playing
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// player.play()
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// }else {
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// //不具备，不操作
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// playState = .Null
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// player.pause()
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// }
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// case .Playing://当前音乐播放中
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// playState = .Playing
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// //恢复播放
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// player.play()
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// case .Pause://当前音乐暂停中
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// playState = .Pause
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// //继续暂停
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// player.pause()
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// }
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// }
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// }
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// }
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// }
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///获取播放器播放状态
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func getPlayState() -> MP_PlayerStateType {
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return playState
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}
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///当前播放器播放方法
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private var playType:MP_PlayerPlayType = .normal{
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didSet{
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DispatchQueue.main.async {
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//当播放器播放方式变化后，发出通知
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NotificationCenter.notificationKey.post(notificationName: .player_type_switch)
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}
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}
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}
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///获取播放器播放方法
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func getPlayType() -> MP_PlayerPlayType {
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return playType
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}
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/// 设置播放器播放方式
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/// - Parameter type: 新的类型
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func setPlayType(_ type:MP_PlayerPlayType) {
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playType = type
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print("播放器播放方法已经改为\(type.title)")
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}
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///计时器状态
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private var timerType:MP_TimerStateType = .Suspend
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///播放器启动时执行事件记录
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private var startActionBlock:MP_PlayTimerStartAction?
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///播放器运行时执行事件记录
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var runActionBlock:MP_PlayTimerRunAction?
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///底部播放器进度槽
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var bottomProgressBlock:MP_PlayTimerRunAction?
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///播放器缓存值闭包
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var cacheValueBlock:MP_PlayCacheValueAction?
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///播放实例状态的监听器
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private var statusObservation:NSKeyValueObservation?
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///播放实例缓存值的监听器
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private var loadedTimeRangesObservation:NSKeyValueObservation?
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///播放实例是否支持播放的监听器
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private var playbackLikelyToKeepUpObservation:NSKeyValueObservation?
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///播放实例报错的监听器
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private var errorObservation:NSKeyValueObservation?
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///播放实例播放资格监听器
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private var playEntitlementObservation:NSKeyValueObservation?
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private override init() {
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super.init()
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//初始化计时器
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timer?.cancel()
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queue = DispatchQueue(label: "com.playerTimer.timer",attributes: .concurrent)
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timer = DispatchSource.makeTimerSource(queue: queue)
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//设置计时器每0.1秒触发一次,误差在0.01秒
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timer?.schedule(deadline: .now(), repeating: .milliseconds(100), leeway: .milliseconds(10))
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// 设置计时器触发时执行的回调
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timer?.setEventHandler(handler: { [weak self] in
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//将计时值增加0.1秒
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self?.times += 0.1
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})
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// 添加观察者，监听播放结束事件
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NotificationCenter.default.addObserver(self, selector: #selector(playerDidFinishPlaying(_ :)), name: .AVPlayerItemDidPlayToEndTime, object: player.currentItem)
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//监听用户切换了音乐
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NotificationCenter.notificationKey.add(observer: self, selector: #selector(userSwitchCurrentVideoAction(_ :)), notificationName: .positive_player_reload)
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//监听网络状态恢复可用
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NotificationCenter.notificationKey.add(observer: self, selector: #selector(netWorkReachableAction(_ :)), notificationName: .net_switch_reachable)
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//监听蓝牙设备的状态
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NotificationCenter.default.addObserver(self, selector: #selector(handleAudioSessionRouteChangeAction(_ :)), name: AVAudioSession.routeChangeNotification, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(handleAppStateChange(_ :)), name: UIApplication.didEnterBackgroundNotification, object: nil)
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NotificationCenter.default.addObserver(self, selector: #selector(handleAppStateChange(_ :)), name: UIApplication.willEnterForegroundNotification, object: nil)
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//设置一个秒为刻度的时间值
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let interval:CMTime = .init(seconds: 1, preferredTimescale: .init(1))
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//为播放器添加运行时主线程每秒触发事件
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player.addPeriodicTimeObserver(forInterval: interval, queue: .main, using: { [weak self] (time) in
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guard let self = self else { return }
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cacheLoadTimes()
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//转化为当前播放进度秒值
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let currentDuration = CMTimeGetSeconds(time)
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//更新控制中心的进度条
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updateNowPlayingInfo()
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//获取当前播放音乐资源的最大时间值
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let maxDuration = getMusicDuration()
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if maxDuration.isNaN == false {
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//判断当值进度是否超越最大时间值
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if currentDuration <= maxDuration {
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//没有，执行运行时时间
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if runActionBlock != nil {
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runActionBlock!(currentDuration, maxDuration)
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}
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if bottomProgressBlock != nil {
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bottomProgressBlock!(currentDuration, maxDuration)
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}
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}
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}
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})
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}
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deinit {
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NotificationCenter.default.removeObserver(self)
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center?.playCommand.removeTarget(self)
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center?.pauseCommand.removeTarget(self)
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center?.nextTrackCommand.removeTarget(self)
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center?.previousTrackCommand.removeTarget(self)
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timer?.cancel()
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timer = nil
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}
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/// 开始播放音乐
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/// - Parameters:
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/// - startAction: 开始播放时需要执行的事件
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/// - runAction: 播放途中需要执行的事件
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/// - endAction: 结束播放时需要执行的事件
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func play(startAction:MP_PlayTimerStartAction? = nil) {
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guard loadPlayer != nil, loadPlayer?.currentVideo != nil else {
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//当两项数据皆为空时，播放器无法播放
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print("Player No Data")
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return
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}
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//检索播放器状态
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switch playState {
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case .Null://未启动
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break
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case .Playing://启动中
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player.pause()
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case .Pause://暂停中
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break
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}
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//记录事件
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if startAction != nil {
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startActionBlock = startAction
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}
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//检索是否具备播放资格
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guard loadPlayer?.currentVideo?.isPlayEntitlement != false else {
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//明确不可播放, 执行下一首
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if MP_NetWorkManager.shared.netWorkStatu == .reachable {
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nextEvent()
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}
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return
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}
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if let currentVideo = loadPlayer?.currentVideo {
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//覆盖播放器原有的playerItem
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player.replaceCurrentItem(with: currentVideo.resourcePlayerItem)
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if center == nil {
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setCommandCenter()
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}
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//启动计时器
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startTimer()
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//对当前播放PlayerItem设置监听状态
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if currentVideo.isKVO == false {
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//准备状态
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statusObservation?.invalidate()
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statusObservation = currentVideo.resourcePlayerItem?.observe(\.status, options: [.old,.new], changeHandler: { [weak self] item, change in
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guard let self = self else {return}
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if item.status == .readyToPlay {
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//判断当前播放器是否在播放当前音乐中
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if playState != .Playing {
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//当statuVlaue值等于playerItem准备播放的值，说明已经准备好播放
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print("当前音乐-\(currentVideo.title ?? "") 已经准备好播放")
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}
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}else {
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print("当前音乐-\(currentVideo.title ?? "") 未做好准备播放，失败原因是\(currentVideo.resourcePlayerItem?.error?.localizedDescription ?? "")")
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MP_AnalyticsManager.shared.player_b_failure_errorAction(currentVideo.song.videoId ?? "", videoname: currentVideo.title ?? "", artistname: currentVideo.song.shortBylineText ?? "", error: currentVideo.resourcePlayerItem?.error?.localizedDescription ?? "Failed to buffer data")
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if currentVideo.isKVO == true {
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suspendTimer()
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currentVideo.isKVO = false
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statusObservation?.invalidate()
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loadedTimeRangesObservation?.invalidate()
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playbackLikelyToKeepUpObservation?.invalidate()
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errorObservation?.invalidate()
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//重新配置数据
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loadPlayer?.remakeImproveData {
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[weak self] in
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self?.play()
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}
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}
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}
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})
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//当前缓冲值
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loadedTimeRangesObservation?.invalidate()
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loadedTimeRangesObservation = currentVideo.resourcePlayerItem?.observe(\.loadedTimeRanges, options: [.old,.new], changeHandler: { [weak self] item, change in
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guard let self = self else {return}
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cacheLoadTimes()
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})
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//是否具备足够播放的能力
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playbackLikelyToKeepUpObservation?.invalidate()
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playbackLikelyToKeepUpObservation = currentVideo.resourcePlayerItem?.observe(\.isPlaybackLikelyToKeepUp, options: [.old,.new], changeHandler: { [weak self] item, change in
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guard let self = self else {return}
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if let playbackLikelyToKeepUp = change.newValue, playbackLikelyToKeepUp == true {
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if playState != .Playing && playState != .Pause {
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//还未播放当前音乐，启动播放
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playState = .Playing
|
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// //检索是否展示了插页广告
|
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// if isAdLate != true {
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// //当前是否上次播放展示状态，是的话，手动暂停
|
||
// if isLast {
|
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// pause()
|
||
// isLast = false
|
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// }else {
|
||
// player.play()
|
||
// }
|
||
// }else {
|
||
//
|
||
// }
|
||
//当前是否上次播放展示状态，是的话，手动暂停
|
||
if isLast {
|
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pause()
|
||
isLast = false
|
||
}else {
|
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player.play()
|
||
}
|
||
//暂停计时器，并获取延时值
|
||
suspendTimer()
|
||
if let currentVideo = loadPlayer?.currentVideo {
|
||
MP_AnalyticsManager.shared.player_b_success_actionAction(currentVideo.song.videoId ?? "", videoname: currentVideo.title ?? "", artistname: currentVideo.song.shortBylineText ?? "")
|
||
|
||
}
|
||
//执行开始播放闭包
|
||
if startActionBlock != nil {
|
||
startActionBlock!()
|
||
}
|
||
|
||
}
|
||
}else {
|
||
//没有足够的数据支持播放
|
||
player.pause()
|
||
playState = .Null
|
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}
|
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})
|
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//报错提醒
|
||
errorObservation?.invalidate()
|
||
errorObservation = currentVideo.resourcePlayerItem?.observe(\.error, options: [.old,.new], changeHandler: { [weak self] item, change in
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||
guard let self = self else {return}
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||
if let error = change.newValue, let nsError = error {
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print("当前音乐-\(currentVideo.title ?? "") 未做好准备播放，失败原因是\(nsError.localizedDescription)")
|
||
MP_AnalyticsManager.shared.player_b_failure_errorAction(currentVideo.song.videoId ?? "", videoname: currentVideo.title ?? "", artistname: currentVideo.song.shortBylineText ?? "", error: nsError.localizedDescription)
|
||
}
|
||
})
|
||
//播放资格
|
||
playEntitlementObservation?.invalidate()
|
||
playEntitlementObservation = currentVideo.observe(\.isPlayEntitlement, options: [.old,.new], changeHandler: { [weak self] item, change in
|
||
guard let self = self, MP_NetWorkManager.shared.netWorkStatu == .reachable else {return}
|
||
if change.newValue == 0 {
|
||
//当前音乐不具备播放资格，直接下一首
|
||
nextEvent()
|
||
}
|
||
})
|
||
currentVideo.isKVO = true
|
||
//将进度回归为0
|
||
player.seek(to: .zero)
|
||
updateNowPlayingInfo()
|
||
}
|
||
}
|
||
}
|
||
///启动计时器
|
||
func startTimer() {
|
||
guard timerType == .Suspend else {
|
||
return
|
||
}
|
||
times = 0
|
||
//运行计时器
|
||
timer?.resume()
|
||
timerType = .Resume
|
||
}
|
||
///暂停计时器
|
||
func suspendTimer() {
|
||
guard timerType == .Resume else {
|
||
return
|
||
}
|
||
//暂停计时器
|
||
timer?.suspend()
|
||
timerType = .Suspend
|
||
guard times != 0 else {
|
||
return
|
||
}
|
||
let times = Int(self.times)
|
||
let msTimes = times*1000
|
||
MP_AnalyticsManager.shared.player_b_delay_actionAction(loadPlayer?.currentVideo?.song.videoId ?? "", videoname: loadPlayer?.currentVideo?.title ?? "", artistname: loadPlayer?.currentVideo?.song.shortBylineText ?? "", delay: "\(msTimes)ms")
|
||
}
|
||
///监听到音视频路由发生变化
|
||
@objc private func handleAudioSessionRouteChangeAction(_ notification: Notification) {
|
||
guard let info = notification.userInfo, let reasonValue = info[AVAudioSessionRouteChangeReasonKey] as? UInt, let reason = AVAudioSession.RouteChangeReason(rawValue:reasonValue) else {
|
||
return
|
||
}
|
||
switch reason {
|
||
case .newDeviceAvailable:// 新设备连接
|
||
print("设备已连接")
|
||
//继续运行
|
||
case .oldDeviceUnavailable:// 设备断开
|
||
print("设备已断开")
|
||
//暂停当前播放
|
||
pause()
|
||
default:
|
||
break
|
||
}
|
||
}
|
||
///当播放器退往后台的时候
|
||
@objc private func handleAppStateChange(_ notification: Notification) {
|
||
if notification.name == UIApplication.didEnterBackgroundNotification {
|
||
//进入后台时解绑AVPlayer
|
||
videoLayer.player = nil
|
||
}else if notification.name == UIApplication.willEnterForegroundNotification {
|
||
videoLayer.player = player
|
||
}
|
||
}
|
||
|
||
///网络状态恢复正常
|
||
@objc private func netWorkReachableAction(_ sender:Notification) {
|
||
//监听到网络状态恢复，检索当前播放器是否正在播放
|
||
if loadPlayer?.currentVideo != nil {
|
||
if playState == .Playing, let currentItem = loadPlayer?.currentVideo?.resourcePlayerItem {
|
||
//有音乐播放，获取当前播放进度
|
||
let currentTime = currentItem.currentTime()
|
||
//手动调整播放时间点，以此重启播放器缓存
|
||
player.seek(to: currentTime)
|
||
player.play()
|
||
playState = .Playing
|
||
}
|
||
}
|
||
}
|
||
//确定播放器播放后限时状态
|
||
func playerStatuTimerAction() {
|
||
MPPositive_Debouncer.shared.playCall {
|
||
[weak self] in
|
||
guard let self = self else {return}
|
||
//10秒后检索播放器是否在播放
|
||
if playState != .Playing {
|
||
if isLast == true {
|
||
MP_HUD.text("Failed to obtain resource, please try again later".localizableString(), delay: 2.0, completion: nil)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
//获取缓冲值
|
||
private func cacheLoadTimes() {
|
||
//获取当前播放Item的缓冲值组
|
||
if let timeRanges = loadPlayer?.currentVideo?.resourcePlayerItem?.loadedTimeRanges.map({$0.timeRangeValue}), let first = timeRanges.first {
|
||
//获取开始时间的秒数
|
||
let startSeconds = first.start.seconds
|
||
//获取缓冲区的持续时间
|
||
let durationSeconds = first.duration.seconds
|
||
//计算当前缓冲总时间
|
||
let bufferedSeconds = startSeconds + durationSeconds
|
||
//获取当前播放音乐资源的最大时间值
|
||
let maxDuration = getMusicDuration()
|
||
//传递缓存值
|
||
if cacheValueBlock != nil {
|
||
cacheValueBlock!(bufferedSeconds, maxDuration)
|
||
}
|
||
}
|
||
}
|
||
//MARK: - 获取当前音乐总长度
|
||
///获取音乐资源总时长
|
||
private func getMusicDuration() -> TimeInterval {
|
||
return CMTimeGetSeconds(player.currentItem?.duration ?? .zero)
|
||
}
|
||
|
||
//MARK: - 音乐播放结束
|
||
//当前音乐播放结束时
|
||
@objc private func playerDidFinishPlaying(_ sender:Notification) {
|
||
guard let item = sender.object as? MP_AVPlayerItem else {return}
|
||
//检索播放器对象
|
||
guard playState == .Playing else {
|
||
return
|
||
}
|
||
//将当前播放音乐存入最近听过
|
||
if let song = loadPlayer?.currentVideo?.song {
|
||
createRecentData(3, song: song)
|
||
}
|
||
switch playType {
|
||
case .single:
|
||
//重播
|
||
player.seek(to: CMTime.zero)
|
||
player.play()
|
||
default:
|
||
//当前音乐播放器正在播放中，下一首
|
||
nextEvent()
|
||
}
|
||
}
|
||
///设置最近听过
|
||
private func createRecentData(_ level:Int16, song:MPPositive_SongItemModel) {
|
||
//检索是否已经存在这个数据
|
||
MPPositive_RecentlyModel.fetch(predicate: .init(format: "videoId == %@", (song.videoId ?? ""))) { results in
|
||
if results.isEmpty {
|
||
//数据库中没有记录,新建一个
|
||
let item = try? MPPositive_RecentlyModel.create()
|
||
item?.coverImage = song.coverUrls?.last
|
||
item?.reviewImage = song.reviewUrls?.last
|
||
item?.title = song.title
|
||
item?.subtitle = (song.longBylineText ?? "")+(song.shortBylineText ?? "")
|
||
item?.videoId = song.videoId
|
||
item?.lyricsID = song.lyricsID
|
||
item?.relatedID = song.relatedID
|
||
item?.addTime = Date()
|
||
item?.level = level
|
||
item?.artistID = song.artistID
|
||
item?.albumID = song.albumID
|
||
item?.playListID = song.playListID
|
||
}else {
|
||
//不为空，调整数据
|
||
if let item = results.first {
|
||
if (item.level) < level {
|
||
item.level = level
|
||
}
|
||
item.addTime = Date()
|
||
}
|
||
}
|
||
MPPositive_RecentlyModel.save()
|
||
}
|
||
}
|
||
|
||
//MARK: - 暂停播放
|
||
///内部暂停播放
|
||
private func pause() {
|
||
//检索播放状态，是否进行中
|
||
guard playState == .Playing else {
|
||
//未处于播放中
|
||
print("Player is not in playing")
|
||
return
|
||
}
|
||
//暂停播放器
|
||
player.pause()
|
||
//切换播放器状态
|
||
playState = .Pause
|
||
}
|
||
/// 暂停播放
|
||
/// - Parameter pauseAction: 暂停时要执行的事件
|
||
func pause(_ pauseAction:MP_PlayTimerPauseAction? = nil) {
|
||
//检索播放状态，是否进行中
|
||
guard playState == .Playing else {
|
||
//未处于播放中
|
||
print("Player is not in playing")
|
||
return
|
||
}
|
||
if pauseAction != nil {
|
||
pauseAction!()
|
||
}
|
||
//暂停播放器
|
||
player.pause()
|
||
//切换播放器状态
|
||
playState = .Pause
|
||
}
|
||
///因为广告展示暂停
|
||
func adToPause() {
|
||
//强行转入加载状态
|
||
playState = .Null
|
||
player.pause()
|
||
}
|
||
///因为广告注销继续
|
||
func adToResume() {
|
||
|
||
}
|
||
//MARK: - 继续播放
|
||
/// 继续播放
|
||
/// - Parameter resumeAction: 继续时要执行的事件
|
||
func resume(_ resumeAction:MP_PlayTimerResumeAction? = nil) {
|
||
//检索播放状态，是否暂停中
|
||
guard playState == .Pause else {
|
||
//未处于暂停中
|
||
print("Player is not paused")
|
||
return
|
||
}
|
||
if resumeAction != nil {
|
||
resumeAction!()
|
||
}
|
||
//继续播放器
|
||
player.play()
|
||
//切换播放器状态
|
||
playState = .Playing
|
||
}
|
||
///内部继续播放
|
||
private func resume() {
|
||
//检索播放状态，是否暂停中
|
||
guard playState == .Pause else {
|
||
//未处于暂停中
|
||
print("Player is not paused")
|
||
return
|
||
}
|
||
//继续播放器
|
||
player.play()
|
||
//切换播放器状态
|
||
playState = .Playing
|
||
}
|
||
|
||
//MARK: - 停止播放
|
||
//停止播放
|
||
func stop() {
|
||
//检索播放状态，是否已启动
|
||
guard playState != .Null else {
|
||
//未启动
|
||
print("Player is not started")
|
||
return
|
||
}
|
||
player.pause()
|
||
playState = .Null
|
||
}
|
||
//MARK: - 切歌（上一首/下一首）
|
||
///上一首歌事件
|
||
func previousEvent() {
|
||
//将播放器状态调整未播放
|
||
playState = .Null
|
||
var nextIndex:Int = 0
|
||
//判断当前音乐播放方式
|
||
switch playType {
|
||
case .random://随机，播放随机列表内容
|
||
//检索当前列表是否为只有一首
|
||
guard (loadPlayer?.randomVideos?.count ?? 0) != 1 else {
|
||
player.seek(to: .zero)
|
||
playState = .Playing
|
||
player.play()
|
||
return
|
||
}
|
||
for (index, item) in (loadPlayer?.randomVideos ?? []).enumerated() {
|
||
if item.videoId == loadPlayer?.currentVideo?.song.videoId {
|
||
//找到播放音乐的索引
|
||
nextIndex = index - 1
|
||
}
|
||
}
|
||
//假如next为负数，则直接播放列表最后一首
|
||
if nextIndex < 0 {
|
||
//播放列表最后一首
|
||
let last = loadPlayer?.randomVideos?.last
|
||
loadPlayer?.improveData(last?.videoId ?? "", isRandom: true)
|
||
}else {
|
||
//查询列表对应单曲
|
||
if let song = loadPlayer?.randomVideos?[nextIndex] {
|
||
loadPlayer?.improveData(song.videoId ?? "", isRandom: true)
|
||
}
|
||
}
|
||
default://常规播放或者单曲播放
|
||
guard (loadPlayer?.songVideos?.count ?? 0) != 1 else {
|
||
player.seek(to: .zero)
|
||
playState = .Playing
|
||
player.play()
|
||
return
|
||
}
|
||
for (index, item) in (loadPlayer?.songVideos ?? []).enumerated() {
|
||
if item.videoId == loadPlayer?.currentVideo?.song.videoId {
|
||
//找到播放音乐的索引
|
||
nextIndex = index - 1
|
||
}
|
||
}
|
||
//假如next为负数，则直接播放列表最后一首
|
||
if nextIndex < 0 {
|
||
//播放列表最后一首
|
||
let last = loadPlayer?.songVideos?.last
|
||
loadPlayer?.improveData(last?.videoId ?? "")
|
||
}else {
|
||
//查询列表对应单曲
|
||
if let song = loadPlayer?.songVideos?[nextIndex] {
|
||
loadPlayer?.improveData(song.videoId ?? "")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
///下一首歌事件
|
||
func nextEvent() {
|
||
//将播放器状态调整未播放
|
||
playState = .Null
|
||
var nextIndex:Int = 0
|
||
switch playType {
|
||
case .random:
|
||
guard let randomVideos = loadPlayer?.randomVideos, randomVideos.count != 1 else {
|
||
player.seek(to: .zero)
|
||
playState = .Playing
|
||
player.play()
|
||
return
|
||
}
|
||
for (index, item) in randomVideos.enumerated() {
|
||
if item.videoId == loadPlayer?.currentVideo?.song.videoId {
|
||
//找到播放音乐的索引
|
||
nextIndex = index + 1
|
||
}
|
||
}
|
||
//超出播放列表数
|
||
if nextIndex > (randomVideos.count-1) {
|
||
//播放列表第一首
|
||
let first = randomVideos.first
|
||
loadPlayer?.improveData(first?.videoId ?? "", isRandom: true)
|
||
}else {
|
||
//存在下一首,获取下一首ID，并播放
|
||
if let song = loadPlayer?.randomVideos?[nextIndex] {
|
||
loadPlayer?.improveData(song.videoId ?? "", isRandom: true)
|
||
}
|
||
}
|
||
default:
|
||
guard let songVideos = loadPlayer?.songVideos, songVideos.count != 1 else {
|
||
player.seek(to: .zero)
|
||
playState = .Playing
|
||
player.play()
|
||
return
|
||
}
|
||
for (index, item) in songVideos.enumerated() {
|
||
if item.videoId == loadPlayer?.currentVideo?.song.videoId {
|
||
//找到播放音乐的索引
|
||
nextIndex = index + 1
|
||
}
|
||
}
|
||
//超出播放列表数
|
||
if nextIndex > (songVideos.count-1) {
|
||
//播放列表第一首
|
||
let first = songVideos.first
|
||
loadPlayer?.improveData(first?.videoId ?? "")
|
||
}else {
|
||
//存在下一首,获取下一首ID，并播放
|
||
if let song = loadPlayer?.songVideos?[nextIndex] {
|
||
loadPlayer?.improveData(song.videoId ?? "")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
///记录用户切歌
|
||
private func switchEvent() {
|
||
//获得当前播放音乐以及播放时长
|
||
guard let currentVideo = loadPlayer?.currentVideo else {return}
|
||
if let currentDruation = player.currentItem?.duration {
|
||
let times = CMTimeGetSeconds(currentDruation)
|
||
if times >= 60 {
|
||
//作为二级最近听过
|
||
createRecentData(2, song: currentVideo.song)
|
||
}else {
|
||
//作为低级最近听过
|
||
createRecentData(1, song: currentVideo.song)
|
||
}
|
||
}else {
|
||
//作为用户略过的歌曲，不操作
|
||
}
|
||
}
|
||
|
||
///监听到用户切换当前音乐
|
||
@objc private func userSwitchCurrentVideoAction(_ sender:Notification) {
|
||
//将播放器状态调整未播放
|
||
playState = .Null
|
||
//暂停播放
|
||
player.pause()
|
||
//优先获取传递的值
|
||
if let video = sender.object as? MPPositive_SongViewModel {
|
||
if video.isKVO == true {
|
||
//切歌时移除KVO监听
|
||
statusObservation?.invalidate()
|
||
playbackLikelyToKeepUpObservation?.invalidate()
|
||
errorObservation?.invalidate()
|
||
loadedTimeRangesObservation?.invalidate()
|
||
video.isKVO = false
|
||
}
|
||
}
|
||
if cacheValueBlock != nil {
|
||
cacheValueBlock!(0, 1)
|
||
}
|
||
if loadPlayer?.currentVideo != nil {
|
||
//开始播放
|
||
play(startAction: startActionBlock)
|
||
}
|
||
}
|
||
|
||
///播放器进度调整状态
|
||
func setEditPorgressStatu() {
|
||
guard playState != .Null else {
|
||
return
|
||
}
|
||
//播放器进入暂停状态
|
||
pause()
|
||
}
|
||
/// 调整播放器进度值，必须和 setEditPorgressStatu()搭配使用
|
||
/// - Parameters:
|
||
/// - progress: 要调整进度值（保证在0-1范围内，超出该方法不会响应）
|
||
func setEditProgressEnd(_ progress:Float, endAction:MP_PlayTimerEditEndAction? = nil) {
|
||
guard playState != .Null else {
|
||
return
|
||
}
|
||
guard progress >= 0, progress <= 1 else {
|
||
return
|
||
}
|
||
//根据当前进度值设置时间节点
|
||
let timePoint:Double = Double(progress)*getMusicDuration()
|
||
//设置对应的时间值
|
||
let time:CMTime = .init(seconds: timePoint, preferredTimescale: CMTimeScale(NSEC_PER_SEC))
|
||
//调整播放器时间
|
||
player.seek(to: time)
|
||
//恢复播放
|
||
resume()
|
||
if endAction != nil {
|
||
endAction!()
|
||
}
|
||
}
|
||
//MARK: - 远程中心
|
||
func setCommandCenter() {
|
||
// 实例化远程控制中心
|
||
center = MPRemoteCommandCenter.shared()
|
||
//设置控制中心各项操作
|
||
//播放
|
||
center!.playCommand.addTarget(handler: { [weak self] (event) in
|
||
guard let self = self else { return .noActionableNowPlayingItem}
|
||
if loadPlayer?.currentVideo != nil && playState == .Pause {
|
||
resume()
|
||
return .success
|
||
}else {
|
||
return .noActionableNowPlayingItem
|
||
}
|
||
})
|
||
//暂停
|
||
center!.pauseCommand.addTarget(handler: { [weak self] (event) in
|
||
guard let self = self else { return .noActionableNowPlayingItem}
|
||
if loadPlayer?.currentVideo != nil && playState == .Playing {
|
||
pause()
|
||
return .success
|
||
}else {
|
||
return .noActionableNowPlayingItem
|
||
}
|
||
})
|
||
//上一首
|
||
center!.previousTrackCommand.addTarget { [weak self] (event) in
|
||
guard let self = self else { return .noActionableNowPlayingItem}
|
||
if loadPlayer?.currentVideo != nil {
|
||
previousEvent()
|
||
return .success
|
||
}else {
|
||
return .noActionableNowPlayingItem
|
||
}
|
||
}
|
||
//下一首歌
|
||
center!.nextTrackCommand.addTarget { [weak self] (event) in
|
||
guard let self = self else { return .noActionableNowPlayingItem}
|
||
if loadPlayer?.currentVideo != nil {
|
||
nextEvent()
|
||
return .success
|
||
}else {
|
||
return .noActionableNowPlayingItem
|
||
}
|
||
}
|
||
//拖拽进度
|
||
center?.changePlaybackPositionCommand.addTarget(handler: { [weak self] event in
|
||
guard let self = self else { return .noActionableNowPlayingItem}
|
||
|
||
guard let positionEvent = event as? MPChangePlaybackPositionCommandEvent else {
|
||
return .commandFailed
|
||
}
|
||
if loadPlayer?.currentVideo != nil {
|
||
self.player.seek(to: CMTime(seconds: positionEvent.positionTime, preferredTimescale: 1))
|
||
return .success
|
||
}else {
|
||
return .noActionableNowPlayingItem
|
||
}
|
||
})
|
||
}
|
||
//设置远程中心内容更新
|
||
func updateNowPlayingInfo() {
|
||
guard loadPlayer?.currentVideo != nil else {return}
|
||
//设置info字典信息
|
||
currentInfo = [:]
|
||
//展示标题
|
||
currentInfo![MPMediaItemPropertyTitle] = loadPlayer?.currentVideo?.title ?? ""
|
||
//设置艺术家
|
||
currentInfo![MPMediaItemPropertyArtist] = loadPlayer?.currentVideo?.song?.shortBylineText ?? ""
|
||
//设置专辑
|
||
currentInfo![MPMediaItemPropertyAlbumTitle] = loadPlayer?.currentVideo?.song?.longBylineText
|
||
//当前时长
|
||
currentInfo![MPNowPlayingInfoPropertyElapsedPlaybackTime] = CMTimeGetSeconds(player.currentItem?.currentTime() ?? .zero)
|
||
//设置歌曲时长
|
||
currentInfo![MPMediaItemPropertyPlaybackDuration] = CMTimeGetSeconds(player.currentItem?.duration ?? .zero)
|
||
currentInfo![MPNowPlayingInfoPropertyPlaybackRate] = 1.0
|
||
let reviewURL = URL(string: loadPlayer?.currentVideo?.song?.reviewUrls?.last ?? "")!
|
||
KingfisherManager.shared.retrieveImage(with: reviewURL) { [weak self]result in
|
||
switch result {
|
||
case .success(let imageResult):
|
||
let image = imageResult.image
|
||
self?.currentInfo?[MPMediaItemPropertyArtwork] = MPMediaItemArtwork(boundsSize: image.size, requestHandler: { size in
|
||
return image
|
||
})
|
||
// 确保更新MPNowPlayingInfoCenter的操作在主线程中
|
||
DispatchQueue.main.async {
|
||
//更新远程中心
|
||
MPNowPlayingInfoCenter.default().nowPlayingInfo = self?.currentInfo
|
||
}
|
||
case .failure(_):
|
||
self?.currentInfo?[MPMediaItemPropertyArtwork] = MPMediaItemArtwork(boundsSize: placeholderImage.size, requestHandler: { size in
|
||
return placeholderImage
|
||
})
|
||
// 确保更新MPNowPlayingInfoCenter的操作在主线程中
|
||
DispatchQueue.main.async {
|
||
//更新远程中心
|
||
MPNowPlayingInfoCenter.default().nowPlayingInfo = self?.currentInfo
|
||
}
|
||
}
|
||
}
|
||
}
|
||
func getVideoDimensions(from playerItem: AVPlayerItem, completion: @escaping (CGFloat, CGFloat) -> Void) {
|
||
guard let asset = playerItem.asset as? AVURLAsset else {
|
||
completion(0, 0)
|
||
return
|
||
}
|
||
|
||
asset.loadValuesAsynchronously(forKeys: ["tracks"]) {
|
||
var error: NSError? = nil
|
||
let status = asset.statusOfValue(forKey: "tracks", error: &error)
|
||
|
||
if status == .loaded {
|
||
let videoTracks = asset.tracks(withMediaType: .video)
|
||
guard let videoTrack = videoTracks.first else {
|
||
completion(0, 0)
|
||
return
|
||
}
|
||
|
||
let size = videoTrack.naturalSize.applying(videoTrack.preferredTransform)
|
||
completion(abs(size.width), abs(size.height))
|
||
} else {
|
||
completion(0, 0)
|
||
}
|
||
}
|
||
}
|
||
///判断是否为封面视频资源
|
||
func isCoverVideo(playerItem: AVPlayerItem, completion: @escaping (Bool) -> Void) {
|
||
getVideoDimensions(from: playerItem) { width, height in
|
||
if width == 0 || height == 0 {
|
||
//高和宽有一个为0，必定是封面资源
|
||
completion(true)
|
||
} else {
|
||
completion(width <= 1.5 * height)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|