【WPF】解析WPF实现音频文件循环顺序播放的解决方法-音频文件循环顺序播放

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解析WPF实现音频文件循环顺序播放的解决方法

MediaManager类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls;
using System.IO;
using System.Configuration;
using System.Windows;
using System.Collections.ObjectModel;
namespace MediaApplication {
    public class MediaManager : MediaElement {
        public MediaManager() {
            try {
                GetAllDirList(new DirectoryInfo(ConfigurationManager.AppSettings["dir"].ToString()));
            } catch {
            }
        }
        public void PlayList() {
            if(files.Count > 0)
            {
                this.UnloadedBehavior=MediaState.Manual;
                this.LoadedBehavior=MediaState.Manual;
                this.MediaEnded +=new RoutedEventHandler(media_MediaEnded);
                this.Source=new Uri( files[index], UriKind.RelativeOrAbsolute);
                this.Play();
            } 
        }
        private void GetAllDirList(DirectoryInfo directory) {           
            foreach(string filter in filters)
            {
                foreach (FileInfo file in directory.GetFiles(filter)) {
                    files.Add(file.FullName);
                }
            }
            foreach (DirectoryInfo subDirectory in directory.GetDirectories()) {
                GetAllDirList(subDirectory);
            }
        }
        private void media_MediaEnded(object sender, RoutedEventArgs e) {
            this.Source=new Uri( files[++index % files.Count], UriKind.RelativeOrAbsolute);
            this.Play();
        }
        private ObservableCollection<string> files=new ObservableCollection<string>();
        private int index=0;
        private string[] filters=new string[] { "*.wav", "*.mp3" };
    }
}

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