質問編集履歴
2
修正・追加
title
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File without changes
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body
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@@ -39,5 +39,172 @@
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}
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```
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教えていただいたように一番下の部分に追加したところ、19個用意した音声ファイルが複数回選択され、全部で189個のキューが自動で設定されるようになりました。
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43
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これについては、for文の部分で回数の設定などを行うことで19個のキューにすることができるのでしょうか？
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```Swift
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46
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class PlayerViewController: UIViewController, UICollectionViewDataSource {
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47
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static let assetKeysRequiredToPlay = [
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48
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"playable",
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49
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"hasProtectedContent"
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]
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let player = AVQueuePlayer()
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var currentTime: Double {
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get {
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return CMTimeGetSeconds(player.currentTime())
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}
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set {
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let newTime = CMTimeMakeWithSeconds(newValue, 1)
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player.seek(to: newTime, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)
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}
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63
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}
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64
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var duration: Double {
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guard let currentItem = player.currentItem else { return 0.0 }
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+
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return CMTimeGetSeconds(currentItem.duration)
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}
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70
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+
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71
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var rate: Float {
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get {
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return player.rate
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}
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set {
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player.rate = newValue
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}
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}
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80
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+
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var playerLayer: AVPlayerLayer? {
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return playerView.playerLayer
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}
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84
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+
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85
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/*
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86
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A formatter for individual date components used to provide an appropriate
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87
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value for the `startTimeLabel` and `durationLabel`.
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*/
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let timeRemainingFormatter: DateComponentsFormatter = {
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let formatter = DateComponentsFormatter()
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formatter.zeroFormattingBehavior = .pad
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formatter.allowedUnits = [.minute, .second]
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return formatter
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}()
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var timeObserverToken: Any?
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var assetTitlesAndThumbnails: [URL: (title: String, thumbnail: UIImage)] = [:]
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var loadedAssets = [String: AVURLAsset]()
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@IBOutlet weak var timeSlider: UISlider!
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@IBOutlet weak var startTimeLabel: UILabel!
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@IBOutlet weak var durationLabel: UILabel!
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@IBOutlet weak var rewindButton: UIButton!
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@IBOutlet weak var playPauseButton: UIButton!
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@IBOutlet weak var fastForwardButton: UIButton!
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@IBOutlet weak var clearButton: UIButton!
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@IBOutlet weak var collectionView: UICollectionView!
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@IBOutlet weak var queueLabel: UILabel!
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@IBOutlet weak var playerView: PlayerView!
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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addObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem.duration), options: [.new, .initial], context: &playerViewControllerKVOContext)
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addObserver(self, forKeyPath: #keyPath(PlayerViewController.player.rate), options: [.new, .initial], context: &playerViewControllerKVOContext)
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addObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem.status), options: [.new, .initial], context: &playerViewControllerKVOContext)
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addObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem), options: [.new, .initial], context: &playerViewControllerKVOContext)
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playerView.playerLayer.player = player
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let manifestURL = Bundle.main.url(forResource: "MediaManifest", withExtension: "json")!
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asynchronouslyLoadURLAssetsWithManifestURL(jsonURL: manifestURL)
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let interval = CMTimeMake(1, 1)
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timeObserverToken = player.addPeriodicTimeObserver(forInterval: interval, queue: DispatchQueue.main) { [unowned self] time in
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let timeElapsed = Float(CMTimeGetSeconds(time))
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self.timeSlider.value = Float(timeElapsed)
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self.startTimeLabel.text = self.createTimeString(time: timeElapsed)
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}
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}
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override func viewDidDisappear(_ animated: Bool) {
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super.viewDidDisappear(animated)
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140
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if let timeObserverToken = timeObserverToken {
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player.removeTimeObserver(timeObserverToken)
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self.timeObserverToken = nil
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}
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145
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+
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player.pause()
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removeObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem.duration), context: &playerViewControllerKVOContext)
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removeObserver(self, forKeyPath: #keyPath(PlayerViewController.player.rate), context: &playerViewControllerKVOContext)
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150
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removeObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem.status), context: &playerViewControllerKVOContext)
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removeObserver(self, forKeyPath: #keyPath(PlayerViewController.player.currentItem), context: &playerViewControllerKVOContext)
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}
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153
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func asynchronouslyLoadURLAsset(asset: AVURLAsset, title: String, thumbnailResourceName: String) {
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155
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156
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asset.loadValuesAsynchronously(forKeys: PlayerViewController.assetKeysRequiredToPlay) {
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157
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158
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159
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DispatchQueue.main.async() {
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160
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161
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162
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163
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for key in PlayerViewController.assetKeysRequiredToPlay {
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var error: NSError?
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165
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166
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if asset.statusOfValue(forKey: key, error: &error) == .failed {
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167
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let stringFormat = NSLocalizedString("error.asset_%@_key_%@_failed.description", comment: "Can't use this AVAsset because one of it's keys failed to load")
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168
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169
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let message = String.localizedStringWithFormat(stringFormat, title, key)
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170
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171
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self.handleError(with: message, error: error)
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172
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173
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return
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}
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175
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}
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176
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+
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177
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+
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178
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if !asset.isPlayable || asset.hasProtectedContent {
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let stringFormat = NSLocalizedString("error.asset_%@_not_playable.description", comment: "Can't use this AVAsset because it isn't playable or has protected content")
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180
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+
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181
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let message = String.localizedStringWithFormat(stringFormat, title)
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183
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self.handleError(with: message)
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184
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+
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185
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return
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186
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}
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187
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188
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189
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self.loadedAssets[title] = asset
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190
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+
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191
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let name = (thumbnailResourceName as NSString).deletingPathExtension
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192
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let type = (thumbnailResourceName as NSString).pathExtension
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193
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let path = Bundle.main.path(forResource: name, ofType: type)!
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194
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+
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195
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let thumbnail = UIImage(contentsOfFile: path)!
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196
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+
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197
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self.assetTitlesAndThumbnails[asset.url] = (title, thumbnail)
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198
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+
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199
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+
for (loadedAssetTitle, loadedAsset) in self.loadedAssets {
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200
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+
let newPlayerItem = AVPlayerItem(asset: loadedAsset)
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201
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+
self.player.insert(newPlayerItem, after: nil)
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202
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+
}
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203
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+
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204
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+
}
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205
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+
}
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206
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+
}
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207
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+
```
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208
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+
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209
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+
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43
210
|
よろしくお願いいたします。
|
1
修正
title
CHANGED
|
File without changes
|
body
CHANGED
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@@ -4,4 +4,40 @@
|
|
|
4
4
|
|
|
5
5
|
ここでお尋ねしたいのが、addItemというボタンを使用せずに、アプリを起動した時点ですでにアプリ内に用意された全ての音声ファイルがキューにセットされている状態にする方法です。
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6
6
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アプリ起動後、再生ボタンを押すとセットされた音声ファイルが再生されるようにしたいです。
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7
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8
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以下にある、addItemのボタンの機能を参考にするのかと考えていますが、自動で全音声ファイルをキューに加える方法が分からず、質問させていただきました。
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9
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```Swift
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10
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@IBAction func addItemToQueueButtonPressed(_ sender: UIButton) {
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11
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let alertTitle = NSLocalizedString("popover.title.addItem", comment: "Title of popover that adds items to the queue")
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12
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+
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13
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let alertMessage = NSLocalizedString("popover.message.addItem", comment: "Message on popover that adds items to the queue")
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14
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+
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15
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let alertController = UIAlertController(title: alertTitle, message: alertMessage, preferredStyle: .actionSheet)
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16
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+
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17
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// Populate the sheet with the titles of the assets we have loaded.
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18
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for (loadedAssetTitle, loadedAsset) in loadedAssets {
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19
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let alertAction = UIAlertAction(title:loadedAssetTitle, style: .default) { [unowned self] alertAction in
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20
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+
let oldItems = self.player.items()
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21
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+
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22
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let newPlayerItem = AVPlayerItem(asset: loadedAsset)
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23
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+
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24
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self.player.insert(newPlayerItem, after: nil)
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25
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+
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26
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+
self.queueDidChangeWithOldPlayerItems(oldPlayerItems: oldItems, newPlayerItems: self.player.items())
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27
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}
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28
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29
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alertController.addAction(alertAction)
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30
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}
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31
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32
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let cancelActionTitle = NSLocalizedString("popover.title.cancel", comment: "Title of popover cancel action")
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33
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+
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34
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let cancelAction = UIAlertAction(title: cancelActionTitle, style: .cancel, handler: nil)
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35
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+
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36
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alertController.addAction(cancelAction)
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37
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+
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38
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+
presentModalPopoverAlertController(alertController: alertController, sender: sender)
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39
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}
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40
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```
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41
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42
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7
43
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よろしくお願いいたします。
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