Swift 音乐播放demo

一、界面展示

二、代码结构

 

三、详细代码

MusicUtils

//
//  MusicUtils.swift
//  MusicDemo
//
//  Created by iscopy on 2022/2/16.
//

import Foundation
//音频框架
import AVFoundation

class MusicUtils: NSObject {
    fileprivate static var player : AVAudioPlayer?
}

// MARK: - 对歌曲的控制
extension MusicUtils: AVAudioPlayerDelegate{
    /// 播放本地音乐
    class func playLocationMusic(_ musicName : String){
        //获取资源的URL
        guard let url = Bundle.main.url(forResource: musicName, withExtension: nil) else { return }
        
        //判断和暂停/停止的对象是否同一首歌曲(继续播放的时候不会切歌)
        if player?.url == url{
            player?.play()
            return
        }
        
        //根据URL创建AVAudioPlayer对象
        guard let audioPlayer = try? AVAudioPlayer(contentsOf: url) else { return }
        self.player = audioPlayer
        
        //播放音乐
        audioPlayer.play()
    }
    /// 播放网络音乐
    class func playNetworkMusic(_ urlString : String){
        //获取资源的URL
        guard let url = URL.init(string: urlString) else { return }
        //判断和暂停/停止的对象是否同一首歌曲(继续播放的时候不会切歌)
        if player?.url == url{
            player?.play()
            return
        }
        guard let urlData = try? Data(contentsOf: url) else { return }
        
        //根据URL创建AVAudioPlayer对象
        guard let audioPlayer = try? AVAudioPlayer(data: urlData) else { return }
        self.player = audioPlayer
        
        //播放音乐
        audioPlayer.play()
    }
    
    class func pauseMusic() {
        player?.pause()
    }
    
    class func stopMusic(){
        player?.stop()
        player?.currentTime = 0
    }
}

// MARK: - 对其他的控制(音量/时间/代理设置)
extension MusicUtils{
    
    class func changeVolume(volume : Float){
        player?.volume = volume
    }
    
    class func setCurrentTime(_ currentTime : TimeInterval) {
        player?.currentTime = currentTime
    }
    
    class func getCurrentTime() -> TimeInterval{
        return player?.currentTime ?? 0
    }
    
    class func getDuration() -> TimeInterval{
        return player?.duration ?? 0
    }
    
    class func setPlayerDelegate(_ delegate : AVAudioPlayerDelegate){
        player?.delegate = delegate
    }
    
}

ViewController 

//
//  ViewController.swift
//  MusicDemo
//
//  Created by iscopy on 2022/2/15.
//

import UIKit

//首先导入音频框架
import AVFoundation

class ViewController: UIViewController {
    
    //MARK: - 名称
    @IBOutlet weak var tvMusicName: UILabel!
    
    
    //MARK: - 开始
    @IBAction func btnStart(_ sender: Any) {
        tvMusicName.text = self.music[self.postion]
        print("\(self.postion) \(self.music[self.postion])")
        //调用本地音乐播放
        MusicUtils.playLocationMusic(self.music[self.postion])
    }
    
    //MARK: - 暂停
    @IBAction func btnSuspend(_ sender: Any) {
        MusicUtils.pauseMusic()
    }
    
    //MARK: - 上一曲
    @IBAction func btnLastSong(_ sender: Any) {
        if self.postion == 0{
            self.postion = self.music.count-1
        }else{
            self.postion = self.postion-1
        }
        tvMusicName.text = self.music[self.postion]
        print("\(self.postion) \(self.music[self.postion])")
        MusicUtils.playLocationMusic(self.music[self.postion])
    }
    
    //MARK: - 下一曲
    @IBAction func btnNextSong(_ sender: Any) {
        if self.postion == self.music.count-1{
            self.postion = 0
        }else{
            self.postion = self.postion+1
        }
        tvMusicName.text = self.music[self.postion]
        print("\(self.postion) \(self.music[self.postion])")
        MusicUtils.playLocationMusic(self.music[self.postion])
    }
    
    var postion:Int = 0
    var music:Array = [String]()
    //MARK: - viewDidLoad
    override func viewDidLoad() {
        super.viewDidLoad()
        music.append("等什么君 - 岁月神偷（翻自 金玟岐）.mp3")
        music.append("多多poi - 02的爱恋（Feat.约谈人参）（翻自 约谈人参）.mp3")
        music.append("排骨教主 - 牵丝戏.mp3")
    }
    
    
}

注：网络音乐播放请调用 playNetworkMusic 方法，这里只是调用了本地播放

GitHub - iscopy/MusicDemo: swift 本地音乐播放