如何多次使用 audioPlayerDidFinishPlaying
How to use audioPlayerDidFinishPlaying multiple times
我在 MainStoryBoard 上创建了带有图像的 UIButton。当我按下该按钮时,它会播放一个音频文件,并且在播放音频时 UIButton 的背景颜色会发生变化。
audioPlayerDidFinishPlaying1 被正确调用,但是 audioPlayerDidFinishPlaying2似乎没有被调用。我感谢任何引导我解决这个问题的建议。
let url1 = Bundle.main.bundleURL.appendingPathComponent("music1.mp3")
let url2 = Bundle.main.bundleURL.appendingPathComponent("music2.mp3")
@IBOutlet weak var yourButton: CustomButton!
@IBOutlet weak var yourButton2: CustomButton!
func Player(url: URL) {
do {
try player = AVAudioPlayer(contentsOf:url)
player.play()
yourButton.isSelected = true
player.delegate = self
} catch {
print(error)
}
}
func Player1(url: URL) {
do {
try player = AVAudioPlayer(contentsOf:url)
player.play()
yourButton2.isSelected = true
player.delegate = self
} catch {
print(error)
}
}
@IBAction func pushButton1(sender: UIButton) {
Player(url: url1)
}
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
yourButton.isSelected = false
}
@IBAction func pushButton2(sender: UIButton) {
Player1(url: url2)
}
func audioPlayerDidFinishPlaying2(_ player: AVAudioPlayer, successfully flag: Bool) {
yourButton2.isSelected = false
}
您正在使用 Player1/Player
方法在本地创建播放器。所以当方法结束时,播放器将被释放。将生成的播放器保留为 class 成员,以便在方法退出时不会释放它
在你的 class 添加:
class YourClass
{
let url1 = Bundle.main.bundleURL.appendingPathComponent("music1.mp3")
let url2 = Bundle.main.bundleURL.appendingPathComponent("music2.mp3")
@IBOutlet weak var yourButton: CustomButton!
@IBOutlet weak var yourButton2: CustomButton!
fileprivate var player1: AVAudioPlayer?
fileprivate var player2: AVAudioPlayer?
.
.
.
func Player(url: URL) {
do {
try player1 = AVAudioPlayer(contentsOf:url)
player1!.play()
yourButton.isSelected = true
player1!.delegate = self
} catch {
print(error)
}
}
另一件事.. 您正在使用委托方法 audioPlayerDidFinishPlaying
,它是 AVAudioPlayer
的委托方法。但是 audioPlayerDidFinishPlaying2
不是,所以在这里没用。由于您有两名玩家,其中一名 class 作为代表,您需要确定哪位玩家已完成并更改正确的按钮。
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
if (player === player1) {
yourButton.isSelected = false
} else if (player === player2) {
yourButton2.isSelected = false
}
}
我在 MainStoryBoard 上创建了带有图像的 UIButton。当我按下该按钮时,它会播放一个音频文件,并且在播放音频时 UIButton 的背景颜色会发生变化。
audioPlayerDidFinishPlaying1 被正确调用,但是 audioPlayerDidFinishPlaying2似乎没有被调用。我感谢任何引导我解决这个问题的建议。
let url1 = Bundle.main.bundleURL.appendingPathComponent("music1.mp3")
let url2 = Bundle.main.bundleURL.appendingPathComponent("music2.mp3")
@IBOutlet weak var yourButton: CustomButton!
@IBOutlet weak var yourButton2: CustomButton!
func Player(url: URL) {
do {
try player = AVAudioPlayer(contentsOf:url)
player.play()
yourButton.isSelected = true
player.delegate = self
} catch {
print(error)
}
}
func Player1(url: URL) {
do {
try player = AVAudioPlayer(contentsOf:url)
player.play()
yourButton2.isSelected = true
player.delegate = self
} catch {
print(error)
}
}
@IBAction func pushButton1(sender: UIButton) {
Player(url: url1)
}
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
yourButton.isSelected = false
}
@IBAction func pushButton2(sender: UIButton) {
Player1(url: url2)
}
func audioPlayerDidFinishPlaying2(_ player: AVAudioPlayer, successfully flag: Bool) {
yourButton2.isSelected = false
}
您正在使用 Player1/Player
方法在本地创建播放器。所以当方法结束时,播放器将被释放。将生成的播放器保留为 class 成员,以便在方法退出时不会释放它
在你的 class 添加:
class YourClass
{
let url1 = Bundle.main.bundleURL.appendingPathComponent("music1.mp3")
let url2 = Bundle.main.bundleURL.appendingPathComponent("music2.mp3")
@IBOutlet weak var yourButton: CustomButton!
@IBOutlet weak var yourButton2: CustomButton!
fileprivate var player1: AVAudioPlayer?
fileprivate var player2: AVAudioPlayer?
.
.
.
func Player(url: URL) {
do {
try player1 = AVAudioPlayer(contentsOf:url)
player1!.play()
yourButton.isSelected = true
player1!.delegate = self
} catch {
print(error)
}
}
另一件事.. 您正在使用委托方法 audioPlayerDidFinishPlaying
,它是 AVAudioPlayer
的委托方法。但是 audioPlayerDidFinishPlaying2
不是,所以在这里没用。由于您有两名玩家,其中一名 class 作为代表,您需要确定哪位玩家已完成并更改正确的按钮。
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
if (player === player1) {
yourButton.isSelected = false
} else if (player === player2) {
yourButton2.isSelected = false
}
}