テーブルビューのドキュメントディレクトリからオーディオファイルを表示し、すぐに行を選択するとオーディオファイルが再生されます3

Question

iPhoneのドキュメントディレクトリにオーディオレコーディングファイルを保存していますが、保存されたファイルをtableviewに表示します。

Answer 1

私はあなたが単純にtableView

Jaydeepその、今働いて

import UIKit 
import AVFoundation 

let reuseIdentifier = "recordingCell" 

class RecordingsCollectionViewController: UICollectionViewController { 

    var recordings = [URL]() 
    var player:AVAudioPlayer! 


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

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


    // MARK: UICollectionViewDataSource 

    override func numberOfSections(in collectionView: UICollectionView) -> Int { 
     return 1 
    } 


    override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
     return self.recordings.count 
    } 

    override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 

     let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) as! RecordingCollectionViewCell 

     cell.label.text = recordings[(indexPath as NSIndexPath).row].lastPathComponent 

     return cell 
    } 

    // MARK: UICollectionViewDelegate 

    override func collectionView(_ collectionView: UICollectionView, shouldHighlightItemAt indexPath: IndexPath) -> Bool { 
     return true 
    } 


    override func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool { 
     return true 
    } 

    override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { 

     print("selected \(recordings[(indexPath as NSIndexPath).row].lastPathComponent)") 
     play(recordings[(indexPath as NSIndexPath).row]) 

    } 

    func play(_ url:URL) { 
     print("playing \(url)") 

     do { 
      self.player = try AVAudioPlayer(contentsOf: 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") 
     } 

    } 
    func listRecordings() { 

     let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] 
     do { 
      let urls = try FileManager.default.contentsOfDirectory(at: documentsDirectory, includingPropertiesForKeys: nil, options: FileManager.DirectoryEnumerationOptions.skipsHiddenFiles) 
      self.recordings = urls.filter({ (name: URL) -> Bool in 
       return name.lastPathComponent.hasSuffix("m4a") 
      }) 

     } catch let error as NSError { 
      print(error.localizedDescription) 
     } catch { 
      print("something went wrong listing recordings") 
     } 

    } 
} 

extension RecordingsCollectionViewController: FileManagerDelegate { 

    func fileManager(_ fileManager: FileManager, shouldMoveItemAt srcURL: URL, to dstURL: URL) -> Bool { 

     print("should move \(srcURL) to \(dstURL)") 
     return true 
    } 

}