Note from Apple:
AVAudioPlayer
An instance of the AVAudioPlayer class, called an audio player, provides playback of audio data from a file or memory.
Apple recommends that you use this class for audio playback unless you are playing audio captured from a network stream or require very low I/O latency.
簡單翻譯過來就是：
- 用于播放本地音頻
- 不推薦用于播放網絡音頻
- 要求超低延遲時不推薦使用
更多詳情見：幫助文檔 From Apple
Recipe：
//第一步：導入AVFoundation
import UIKit
import AVFoundation
//第二步：添加AVAudioPlayerDelegate到UIViewController class
class UIViewController : UIViewController, AVAudioPlayerDelegate {
}
//第三步：創建audioPlayer container（variable）
var audioPlayer : AVAudioPlayer!
//第四步：創建音頻的URL
let soundURL = Bundle.main.url(forResource: "音頻名字", withExtension: "音頻格式 e.g. mp3")
//第五步：使用do{try} catch{}來讓 audioPlayer 使用剛剛創建的URL
- 因為
AVAudioPlayer在讀取URL會throwerrors所以要用這個形式來把可能會出現的error用catch抓住
do {
audioPlayer = try AVAudioPlayer(contentsOf: soundURL!)
}
catch {
print(error)
}
- 如果100%確定本地的音頻文件一定不會有問題，可以不使用
do{try} catch{}這個形式，直接在try后面加!來達到同樣的效果，如：audioPlayer = try! AVAudioPlayer(contentsOf: soundURL!)
//第六步：調用play()來播放音頻
audioPlayer.play()
Example：
import UIKit
import AVFoundation
class ViewController: UIViewController, AVAudioPlayerDelegate {
var audioPlayer : AVAudioPlayer!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
@IBAction func buttonTapped(_ sender: UIButton) {
playSound(soundFileName : "喵", soundExtension: "m4a")
}
func playSound(soundFileName : String, soundExtension: String) {
let soundURL = Bundle.main.url(forResource: soundFileName, withExtension: soundExtension)
do {
audioPlayer = try AVAudioPlayer(contentsOf: soundURL!)
} catch {
print(error)
}
audioPlayer.play()
}
}
參考Demo：PlaySound Demo on GitHub
（Demo內所有素材版權歸@lovelyhelenzhu所有，禁止一切二次修改、轉載etc. 謝謝配合~）
