Xcode9学习笔记64

import UIKit
import AVFoundation//引入流媒体基础框架，它能收集各种多媒体数据，这些数据可以来自不同的输入设备，比如摄像机、录音机等

class ViewController: UIViewController {
    
    var audioPlayer:AVAudioPlayer = AVAudioPlayer()//初始化音频播放对象，并将音频播放对象作为视图控制器类的属性

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        let path = Bundle.main.path(forResource: "MarryYou", ofType: "mp3")//获取沙箱目录中音频文件的所在路径
        let soundUrl = URL(fileURLWithPath: path!)//将字符串路径转换成网址路径
        
        do {//在音频播放前，首先创建一个异常捕捉语句
            try audioPlayer = AVAudioPlayer(contentsOf: soundUrl)//对音频播放对象进行初始化，并加载指定的音频文件
            audioPlayer.volume = 1.0//设置音频播放对象的音量大小
            audioPlayer.numberOfLoops = -1//设置音频播放次数，-1为无线循环播放
            audioPlayer.play()
        } catch {
            print(error)
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}