如何解决根据阵列中每个I时间的持续时间播放快速声音
我希望我的快速代码调用playSound并根据数组playamount中每个项目的持续时间播放声音。因此,我希望用户第一次播放声音10秒钟,然后从头开始播放声音20秒钟,然后播放同一声音30秒钟。因此,声音总是在每次被调用时从头开始。
import UIKit; import AVFoundation
class ViewController: UIViewController {
var player: AVAudioPlayer?
func playSound() {
let url = Bundle.mainBundle().URLForResource("rock",withExtension: "mp3")!
do {
player = try AVAudioPlayer(contentsOfURL: url)
guard let player = player else { return }
player.prepareToPlay()
player.play()
} catch let error as NSError {
print(error.description)
}
}
var playAmount : [Int] = [10,20,30]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
}
解决方法
class ViewController: UIViewController {
var player: AVAudioPlayer?
var currentIndex: Int = 0
func runMusicBox() {
guard !playAmount.isEmpty else { return }
currentIndex = 0
newTimerForIndex(index: 0)
}
func newTimerForIndex(index: Int) {
player?.prepareToPlay()
player?.play()
Timer.scheduledTimer(withTimeInterval: Double(playAmount[index]),repeats: false) { timer in
self.player?.stop()
if self.currentIndex + 1 < self.playAmount.count {
self.currentIndex += 1
self.newTimerForIndex(index: self.currentIndex)
} else {
self.player?.stop()
}
}
}
func playSound() {
let url = Bundle.mainBundle().URLForResource("rock",withExtension: "mp3")!
do {
player = try AVAudioPlayer(contentsOfURL: url)
guard let player = player else { return }
runMusicBox()
} catch let error as NSError {
print(error.description)
}
}
var playAmount : [Int] = [10,20,30]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
}
您好,您可以尝试使用此代码吗?在这里,我有一个计时器,当一个计时器停止时,我们检查数组中是否还有另一个元素,并将运行一个新的计时器。计时器正在工作,但我没有检查播放器。如果它能按预期工作-应该可以为您工作
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