AVFoundation 1 Playback of sound source

Swift 3.0 // // ViewController.swift // avfoundation001 // // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit import AVFoundation //AudioPlayerDelegateプロトコルを採用. class ViewController: UIViewController,AVAudioPlayerDelegate { //変数宣言. var myAudioPlayer : AVAudioPlayer! var myButton : UIButton! override func viewDidLoad() { super.viewDidLoad() //再生する音源のURLを生成. let soundFilePath : String = Bundle.main.path(forResource: "Sample", ofType: "mp3")! let fileURL = URL(fileURLWithPath: soundFilePath) //AVAudioPlayerのインスタンス化. myAudioPlayer = try! AVAudioPlayer(contentsOf: fileURL) //AVAudioPlayerのデリゲートをセット. myAudioPlayer.delegate = self //ボタンの生成. myButton = UIButton() myButton.frame.size = CGSize(width: 100, height: 100) myButton.layer.position = CGPoint(x: self.view.frame.width/2, y: self.view.frame.height/2) myButton.setTitle("▶︎", for: UIControlState.normal) myButton.setTitleColor(UIColor.black, for: .normal) myButton.backgroundColor = UIColor.cyan myButton.addTarget(self, action: #selector(onClickMyButton), for: UIControlEvents.touchUpInside) myButton.layer.masksToBounds = true myButton.layer.cornerRadius = 50.0 self.view.addSubview(myButton) } //ボタンがタップされた時に呼ばれるメソッド. func onClickMyButton(sender: UIButton) { //playingプロパティがtrueであれば音源再生中. if myAudioPlayer.isPlaying == true { //myAudioPlayerを一時停止. myAudioPlayer.pause() sender.setTitle("▶︎", for: .normal) } else { //myAudioPlayerの再生. myAudioPlayer.play() sender.setTitle("■", for: .normal) } } // MARK: - AVAudioPlayerDelegate //音楽再生が成功した時に呼ばれるメソッド. func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) { if !flag { return } print("Music Finish") //再度myButtonを"▶︎"に設定. myButton.setTitle("▶︎", for: .normal) } //デコード中にエラーが起きた時に呼ばれるメソッド. func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: Error?) { if let e = error { print("Error") print(e.localizedDescription) return } } } Swift 2.3 // // ViewController.swift // avfoundation001 // // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit import AVFoundation //AudioPlayerDelegateプロトコルを採用. class ViewController: UIViewController,AVAudioPlayerDelegate { //変数宣言. var myAudioPlayer : AVAudioPlayer! var myButton : UIButton! override func viewDidLoad() { super.viewDidLoad() //再生する音源のURLを生成. let soundFilePath : NSString = NSBundle.mainBundle().pathForResource("Sample", ofType: "mp3")! let fileURL : NSURL = NSURL(fileURLWithPath: soundFilePath as String) //AVAudioPlayerのインスタンス化. myAudioPlayer = try! AVAudioPlayer(contentsOfURL: fileURL) //AVAudioPlayerのデリゲートをセット. myAudioPlayer.delegate = self //ボタンの生成. myButton = UIButton() myButton.frame.size = CGSizeMake(100, 100) myButton.layer.position = CGPoint(x: self.view.frame.width/2, y: self.view.frame.height/2) myButton.setTitle("▶︎", forState: UIControlState.Normal) myButton.setTitleColor(UIColor.blackColor(), forState: .Normal) myButton.backgroundColor = UIColor.cyanColor() myButton.addTarget(self, action: #selector(ViewController.onClickMyButton(_:)), forControlEvents: UIControlEvents.TouchUpInside) myButton.layer.masksToBounds = true myButton.layer.cornerRadius = 50.0 self.view.addSubview(myButton) } //ボタンがタップされた時に呼ばれるメソッド. func onClickMyButton(sender: UIButton) { //playingプロパティがtrueであれば音源再生中. if myAudioPlayer.playing == true { //myAudioPlayerを一時停止. myAudioPlayer.pause() sender.setTitle("▶︎", forState: .Normal) } else { //myAudioPlayerの再生. myAudioPlayer.play() sender.setTitle("■", forState: .Normal) } } // MARK: - AVAudioPlayerDelegate //音楽再生が成功した時に呼ばれるメソッド. func audioPlayerDidFinishPlaying(player: AVAudioPlayer, successfully flag: Bool) { if !flag { return } print("Music Finish") //再度myButtonを"▶︎"に設定. myButton.setTitle("▶︎", forState: .Normal) } //デコード中にエラーが起きた時に呼ばれるメソッド. func audioPlayerDecodeErrorDidOccur(player: AVAudioPlayer, error: NSError?) { if let e = error { print("Error") print(e.localizedDescription) return } } } 2.xと3.xの差分 NSBundleからBundleに変更 NSBundle.mainBundle().pathForResource(String?, ofType: String?)からBundle.main.path(forResource: String?, ofType: String?)に変更 NSURLからURLに変更 CGSizeMake(CGFloat, CGFloat)からCGSize(width: CGFloat, height: CGFloat)に変更 UIControlState.NormalからUIControlState.normalに変更 UIButton.setTitle(String?, forState: UIControlState)からUIButton.setTitle(String?, for: UIControlState)に変更 UIColorによる色指定の簡略化 例 : UIColor.blueColor()からUIColor.blueに変更 UIControlEvents.TouchUpInsideからUIControlEvents.touchUpInsideに変更 AVAudioPlayerのプロパティ名変更 AVAudioPlayer.isPlaying → AVAudioPlayer.playing AVAudioPlayerDelegateプロトコルのメソッドのインタフェース変更 func audioPlayerDidFinishPlaying(player: AVAudioPlayer, successfully flag: Bool)``func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) func audioPlayerDecodeErrorDidOccur(player: AVAudioPlayer, error: NSError?) → func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: Error?)