如何在ios swift中播放来自URL的mp3音频 [英] How to play mp3 audio from URL in ios swift

问题描述

我收到了mp3网址作为api通话的回应。
我想播放那个音频，那我怎么能这样做？ （ios swift）

I am getting mp3 url as a response of api calling. I want to play that audio, so how can i do that? (ios swift)

这是我的回复

 {
    content = "En este primer programa se tratar\U00e1n asuntos tan importante como este y aquel sin descuidar un poco de todo lo dem\U00e1s";
    file = "http://radio.spainmedia.es/wp-content/uploads/2015/12/ogilvy.mp3";
    image = "http://radio.spainmedia.es/wp-content/uploads/2015/12/tapas.jpg";
    number = 0001;
    subtitle = Titulareando;
    title = "Tapa 1";
}

这是我的代码::

 @IBAction func btnplayaudio(sender: AnyObject) {
    let urlstring = "http://radio.spainmedia.es/wp-content/uploads/2015/12/tailtoddle_lo4.mp3"
    let url = NSURL(string: urlstring)
    print("the url = \(url!)")

    play(url!)

}

func play(url:NSURL) {
    print("playing \(url)")

    do {
        self.player = try AVAudioPlayer(contentsOfURL: url)
        player.prepareToPlay()
        player.volume = 1.0
        player.play()
    } catch let error as NSError {
        self.player = nil
        print(error.localizedDescription)
    } catch {
        print("AVAudioPlayer init failed")
    }

}

我哪里出错？

推荐答案

我尝试了以下内容，

    let urlstring = "http://radio.spainmedia.es/wp-content/uploads/2015/12/tailtoddle_lo4.mp3"
    let url = NSURL(string: urlstring)
    print("the url = \(url!)")
    downloadFileFromURL(url!)

添加以下方法，

func downloadFileFromURL(url:NSURL){

    var downloadTask:NSURLSessionDownloadTask
    downloadTask = NSURLSession.sharedSession().downloadTaskWithURL(url, completionHandler: { [weak self](URL, response, error) -> Void in
        self?.play(URL)
    })

    downloadTask.resume()

}

你的游戏方式不错，

func play(url:NSURL) {
    print("playing \(url)")

    do {
        self.player = try AVAudioPlayer(contentsOfURL: url)
        player.prepareToPlay()
        player.volume = 1.0
        player.play()
    } catch let error as NSError {
        //self.player = nil
        print(error.localizedDescription)
    } catch {
        print("AVAudioPlayer init failed")
    }

}

下载mp3文件然后尝试播放它，不知何故AVAudioPlayer不会为你下载你的mp3文件。我可以下载音频文件，播放器播放它。

Download the mp3 file and then try to play it, somehow AVAudioPlayer does not download your mp3 file for you. I am able to download the audio file and player plays it.

请记住在info.plist中添加此内容，因为您从 http 来源，您需要为 iOS 9 +

Remember to add this in your info.plist since you are loading from a http source and you need the below to be set for iOS 9+

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>
</plist>

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