我如何在 iOS 应用中选择音乐文件 [关闭]

Question

我想在我的 iOS 应用中导入 iPhone 的音乐文件。

你能给我看看这个的代码吗？

感谢阅读。

Answer 1

看看下面的代码是否适合你，

将“NSAppleMusicUsageDescription”添加到您的 Info.plist 以获得隐私权。 确保您的音乐在您的 iPhone 中可用。它在模拟器中不起作用。

import UIKit
import AVFoundation
import MediaPlayer

class ViewController: UIViewController, MPMediaPickerControllerDelegate {

    var musicPlayer: AVAudioPlayer?
    var pickerVC: MPMediaPickerController?
    var mediaItems = [MPMediaItem]()
    let currentIndex = 0

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool){

    }

    func mediaPicker(_ mediaPicker: MPMediaPickerController, didPickMediaItems mediaItemCollection: MPMediaItemCollection) {
        mediaItems = mediaItemCollection.items
        updatePlayer()
        self.dismiss(animated: true, completion: nil)
    }

    func updatePlayer(){
        let item = mediaItems[currentIndex]
        if let path: NSURL = item.assetURL as NSURL? {
            do {
                musicPlayer = try AVAudioPlayer(contentsOf: path as URL)
                musicPlayer?.enableRate = true
                musicPlayer?.rate = 1.0
                musicPlayer?.numberOfLoops = 0
                musicPlayer?.currentTime = 0
            } catch {
                musicPlayer = nil
            }
        }
    }

    @IBAction func play(_ sender: AnyObject) {
        //AVMusicPlayer.deviceCurrentTime
        musicPlayer?.play()
    }

    @IBAction func stop(_ sender: AnyObject) {
        musicPlayer?.stop()
    }

    @IBAction func picker(_ sender: AnyObject) {
        pickerVC = MPMediaPickerController(mediaTypes: .music)
        pickerVC?.allowsPickingMultipleItems = false
        pickerVC?.delegate = self
        if let controller = pickerVC {
            present(controller, animated: true, completion: nil)
        }
    }
}