Swift 3.0 AVAudioPlayer 通过音乐播放音频

Question

目前这是我用来在按下按钮时播放声音的代码。

var player: AVAudioPlayer?

    let url = Bundle.main.url(forResource: "Sound/yatch", withExtension: "mp3")!

    do {
        player = try AVAudioPlayer(contentsOf: url)
        guard let player = player else { return }

        player.prepareToPlay()
        player.play()
    } catch let error {
        print(error.localizedDescription)
    }

我试图让这个音频运行在当前播放的内容上（例如 Spotify、pandora、音乐）。 我该怎么做呢？

Answer 1

将应用程序的音频会话设置为在当前播放的音频上播放：

try? AVAudioSession.sharedInstance().setActive(true)
try? AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient)

根据AVAudioSession标头， AVAudioSessionCategoryAmbient将播放带有音乐等的音频。

/*  Use this category for background sounds such as rain, car engine noise, etc.
 Mixes with other music. */
public let AVAudioSessionCategoryAmbient: String

Answer 2

斯威夫特 5.3 更新

guard let url = Bundle.main.url(forResource: "INSERT_FILENAME", withExtension: "wav") else { return }

do {
    try AVAudioSession.sharedInstance().setCategory(.ambient, mode: .default)
    try AVAudioSession.sharedInstance().setActive(true)

    audioPlayer = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.wav.rawValue)
    audioPlayer.volume = 1

    audioPlayer.play()

} catch let error {
    print(error.localizedDescription)
}