我试图按一个按钮,音频文件一个接一个地播放。
以下是我的代码。我按下播放按钮,两个声音同时播放。 我试图按下播放按钮,声音开始和停止,然后另一个声音文件开始和停止。按下一个按钮可以按下2个声音文件,这是我的目标。谢谢
我在循环中尝试这个但是它不起作用。
import UIKit
import AVFoundation
class ViewController: UIViewController {
@IBOutlet weak var sliderValue: UISlider!
var player:AVAudioPlayer = AVAudioPlayer()
var player1:AVAudioPlayer = AVAudioPlayer()
@IBAction func play(_ sender: AnyObject) {
player.play()
player1.play()
}
@IBAction func pause(_ sender: AnyObject) {
player.pause()
}
@IBAction func stop(_ sender: AnyObject) {
player.stop()
player.currentTime = 0
}
@IBAction func sliderChanged(_ sender: AnyObject) {
player.volume = sliderValue.value
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let audioPath = Bundle.main.path(forResource: "sound1", ofType: "mp3")!
let audioPath1 = Bundle.main.path(forResource: "sound2", ofType: "mp3")!
do {
try player = AVAudioPlayer(contentsOf: URL(fileURLWithPath: audioPath))
try player1 = AVAudioPlayer(contentsOf: URL(fileURLWithPath: audioPath1))
} catch{
//Process Error here
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
答案 0 :(得分:0)
当然,你不能在循环中做到这一点!
播放声音文件的正确方法是使用AVAudioPlayerDelegate
。
在视图控制器中,符合AVAudioPlayerDelegate
:
class YourViewController: UIViewController, AVAudioPlayerDelegate {
// ...
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer,
successfully flag: Bool) {
}
}
如您所见,我向控制器添加了audioPlayerDidFinishPlaying
方法。
所以你想首先玩player
,然后player1
,对吧?
在viewDidLoad
中,添加以下行:
player.delegate = self
在我刚添加的方法中,写一下:
player1.play()
其他IBAction方法应该稍微改变一下:
@IBAction func play(_ sender: AnyObject) {
player.play()
}
@IBAction func pause(_ sender: AnyObject) {
if player.isPlaying {
player.pause()
} else if player1.isPlaying {
player1.pause()
}
}
@IBAction func stop(_ sender: AnyObject) {
if player.isPlaying {
player.stop()
} else if player1.isPlaying {
player1.stop()
}
}
@IBAction func sliderChanged(_ sender: AnyObject) {
player.volume = sliderValue.value
player1.volume = sliderValue.value
}
答案 1 :(得分:0)