//
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// AVKitPlayerController.swift
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// OKProject
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//
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// Created by 无故事王国 on 2022/5/18.
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// Copyright © 2022 yangwang. All rights reserved.
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//
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import UIKit
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import AVKit
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class AVKitPlayerController: YYViewController {
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@IBOutlet weak var playBGView: UIView!
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private var playerItem: AVPlayerItem?
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private var playerController: AVPlayerViewController!
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var playURL: String!
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deinit {
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removeObserver()
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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setupAVPlayerViewController()
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addObserver()
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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AudioHelper.onlyActivePlay()
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}
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override func viewWillDisappear(_ animated: Bool) {
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super.viewWillDisappear(animated)
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AudioHelper.notAffectedBackgroundPlay()
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}
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@IBAction func tapReturnAction(_ sender: Any) {
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self.dismiss(animated: true)
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// self.navigationController?.popViewController(animated: true)
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}
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private func setupAVPlayerViewController() {
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guard let url = URL(string: playURL) else {
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return
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}
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playerController = AVPlayerViewController()
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playerController.delegate = self
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playerItem = AVPlayerItem(url: url)
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playerController.player = AVPlayer(playerItem: playerItem)
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playerController.videoGravity = .resizeAspect
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playBGView.addSubview(playerController.view)
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playerController.view.snp.remakeConstraints { make in
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make.edges.equalToSuperview()
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}
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AudioHelper.onlyActivePlay()
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}
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private func addObserver() {
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// 监听loadedTimeRanges属性对缓冲进度更新
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playerItem?.addObserver(self,
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forKeyPath: "loadedTimeRanges",
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options: .new,
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context: nil)
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// 监听status属性进行播放
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playerItem?.addObserver(self,
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forKeyPath: "status",
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options: .new,
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context: nil)
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}
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private func removeObserver() {
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playerItem?.removeObserver(self, forKeyPath: "status")
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playerItem?.removeObserver(self, forKeyPath: "loadedTimeRanges")
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}
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override func observeValue(forKeyPath keyPath: String?,
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of object: Any?,
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change: [NSKeyValueChangeKey : Any]?,
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context: UnsafeMutableRawPointer?) {
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guard let object = object as? AVPlayerItem else { return }
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guard let keyPath = keyPath else { return }
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if keyPath == "status" {
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if object.status == .readyToPlay {
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playerController?.player?.play()
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print("正在播放...，视频总长度:\(formatPlayTime(seconds: CMTimeGetSeconds(object.duration)))")
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} else if object.status == .failed || object.status == .unknown {
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print("播放出错")
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}
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self.dealwithFullScreenButton()
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} else if keyPath == "loadedTimeRanges" {
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let loadedTime = availableDurationWithplayerItem()
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print("当前加载进度\(loadedTime)")
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}
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}
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/// 将全屏按钮换成返回图标，并在其上层添加返回按钮
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func dealwithFullScreenButton() {
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var contentView: UIView?
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for sub in playerController.view.subviews {
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if "\(sub.classForCoder)" == "AVPlayerViewControllerContentView" {
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contentView = sub
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break
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}
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}
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guard let guardContentView = contentView else {
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return
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}
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var controlsView: UIView?
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for sub in guardContentView.subviews {
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if "\(sub.classForCoder)" == "AVPlaybackControlsView" {
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controlsView = sub
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break
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}
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}
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guard let guardControlsView = controlsView else {
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return
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}
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var ignoringView: UIView?
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for sub in guardControlsView.subviews {
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if "\(sub.classForCoder)" == "AVTouchIgnoringView" {
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ignoringView = sub
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break
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}
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}
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guard let guardIgnoringView = ignoringView else {
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return
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}
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var layoutView: UIView?
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for sub in guardIgnoringView.subviews {
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if "\(sub.classForCoder)" == "AVLayoutView" {
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layoutView = sub
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break
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}
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}
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guard let guardLayoutView = layoutView else {
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return
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}
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for (index, sub) in guardLayoutView.subviews.enumerated() {
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if "\(sub.classForCoder)" == "AVButton" {
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print("AVButton AVButton \(index)")
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if let avBut = sub as? UIButton {
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avBut.setImage(UIImage(named: "icon_back_white"), for: .normal)
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avBut.setImage(UIImage(named: "icon_back_white"), for: .selected)
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}
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let returnBut = UIButton()
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returnBut.backgroundColor = .clear
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returnBut.addTarget(self, action: #selector(tapReturnAction(_:)), for: .touchUpInside)
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sub.superview?.addSubview(returnBut)
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returnBut.snp.remakeConstraints { make in
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make.edges.equalToSuperview()
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}
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}
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}
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}
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/// 将秒转成时间字符串的方法，因为我们将得到秒
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private func formatPlayTime(seconds: Float64) -> String {
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let min = Int(seconds / 60)
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let sec = Int(seconds.truncatingRemainder(dividingBy: 60))
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return String(format: "%02d:%02d", min, sec)
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}
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/// 计算当前的缓冲进度
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private func availableDurationWithplayerItem() -> TimeInterval {
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guard let loadedTimeRanges = playerController.player?.currentItem?.loadedTimeRanges,
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let first = loadedTimeRanges.first else {
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fatalError()
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}
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let timeRange = first.timeRangeValue
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// 本次缓冲起始时间
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let startSeconds = CMTimeGetSeconds(timeRange.start)
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// 缓冲时间
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let durationSecound = CMTimeGetSeconds(timeRange.duration)
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// 缓冲总长度
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let result = startSeconds + durationSecound
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return result
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}
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}
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extension AVKitPlayerController: AVPlayerViewControllerDelegate {
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func playerViewController(_ playerViewController: AVPlayerViewController, willBeginFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) {
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}
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func playerViewController(_ playerViewController: AVPlayerViewController, willEndFullScreenPresentationWithAnimationCoordinator coordinator: UIViewControllerTransitionCoordinator) {
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self.navigationController?.popViewController(animated: true)
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}
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}
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struct AudioHelper {
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/// APP内播放音视频，不影响后台音乐播放
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static func notAffectedBackgroundPlay() {
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do {
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try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.ambient, options: [.mixWithOthers, .defaultToSpeaker])
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try AVAudioSession.sharedInstance().setActive(true)
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} catch {
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}
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}
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/// 静音播放
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static func mutePlay() {
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do {
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/// try AVAudioSession.sharedInstance().setActive(false, options: AVAudioSession.SetActiveOptions.notifyOthersOnDeactivation)
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try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.ambient, options: [.mixWithOthers, .defaultToSpeaker])
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try AVAudioSession.sharedInstance().setActive(false)
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} catch {
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}
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}
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/// 单独播放APP内视频
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static func onlyActivePlay() {
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do {
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try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)
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try AVAudioSession.sharedInstance().setActive(true)
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} catch {
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}
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}
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}
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