前言
现在网上有很多的音乐播放器,但好像都不是.net平台做的,在.net中实现音乐文件的播放功能很简单,下面就简单实现下。
SoundPlayer类
在.net提供了音乐文件的类:SoundPlayer,但是只支持.wav格式,我们用的时候一般是播放系统文件,比如一些提示声音等。代码很简单:
1 SoundPlayer player = new SoundPlayer(); 2 player.SoundLocation = filePath;//filePath文件的物理路径 3 player.Play();
使用这个类我们做个小程序,如下:
WMP组件
上面的小程序有几个问题:不支持暂停,进度显示,文件格式限制等,因为SoundPlayer就是来播放系统文件的,不能要求它那么全面。因为windows系统自带播放器windows media player,我们可以用使用其自带的组件来实现上面的要求,做起来也很简单。
先引用Windows Media Player组件,然后就像拖控件一样用就行了。效果如图:
代码实现起来很简单,播放,暂停,停止代码如下:
1 wmp.Ctlcontrols.play();//播放 2 wmp.Ctlcontrols.pause();//暂停 3 wmp.Ctlcontrols.stop();//停止
完整代码:
1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 10 using WMPLib; 11 using System.Media; 12 using System.IO; 13 using System.Threading; 14 15 namespace 音乐播放器 16 { 17 public partial class Form2 : Form 18 { 19 public int index = 1; 20 public int listIndex; 21 SoundPlayer player = new SoundPlayer(); 22 Dictionary<string, string> dic = new Dictionary<string, string>(); 23 IWMPMedia media; 24 public Form2() 25 { 26 InitializeComponent(); 27 } 28 29 private void Form2_Load(object sender, EventArgs e) 30 { 31 32 } 33 34 /// <summary> 35 /// 导入文件 36 /// </summary> 37 private void tsmiLoading_Click(object sender, EventArgs e) 38 { 39 string fileName, fileExtension, fileSize, temp; 40 FileInfo fi = null; 41 ListViewItem lvi = null; 42 43 openFileDialog1.Multiselect = true; 44 openFileDialog1.Filter = "mp3文件(*.mp3)|*.mp3|wav文件(*.wav)|*.wav|wma文件(*.wma)|*.wma"; 45 if (openFileDialog1.ShowDialog() == DialogResult.OK) 46 { 47 foreach (string filePath in openFileDialog1.FileNames) 48 { 49 fi = new FileInfo(filePath); 50 temp = filePath.Remove(filePath.LastIndexOf('.')); 51 fileName = temp.Remove(0, temp.LastIndexOf('\') + 1); 52 fileExtension = filePath.Remove(0, filePath.LastIndexOf('.')); 53 fileSize = (fi.Length / 1024).ToString() + "KB"; 54 55 lvi = new ListViewItem(); 56 lvi.Text = index++.ToString(); 57 lvi.SubItems.AddRange(new string[] { fileName, fileExtension, fileSize, filePath }); 58 59 if (lvDetail.Items.Count > 0) 60 { 61 if (!dic.ContainsKey(filePath)) 62 { 63 lvDetail.Items.Add(lvi); 64 dic.Add(filePath, fileName); 65 //添加到播放列表 66 media = wmp.newMedia(filePath); 67 wmp.currentPlaylist.insertItem(listIndex++, media); 68 } 69 else 70 { 71 index--; 72 MessageBox.Show("文件已存在!"); 73 } 74 } 75 else 76 { 77 lvDetail.Items.Add(lvi); 78 dic.Add(filePath, fileName); 79 //添加到播放列表 80 media = wmp.newMedia(filePath); 81 wmp.currentPlaylist.insertItem(listIndex++, media); 82 } 83 } 84 } 85 } 86 87 /// <summary> 88 /// 清除列表 89 /// </summary> 90 private void tsmiClear_Click(object sender, EventArgs e) 91 { 92 lvDetail.Items.Clear(); 93 } 94 95 /// <summary> 96 /// 播放 97 /// </summary> 98 private void tsmiPlayer_Click(object sender, EventArgs e) 99 { 100 wmp.Ctlcontrols.play(); 101 } 102 103 /// <summary> 104 /// 暂停 105 /// </summary> 106 private void tsmiWaiting_Click(object sender, EventArgs e) 107 { 108 wmp.Ctlcontrols.pause(); 109 } 110 111 /// <summary> 112 /// 停止 113 /// </summary> 114 private void tsmiStop_Click(object sender, EventArgs e) 115 { 116 wmp.Ctlcontrols.stop(); 117 } 118 119 /// <summary> 120 /// 退出 121 /// </summary> 122 private void tsmiExit_Click(object sender, EventArgs e) 123 { 124 Application.Exit(); 125 } 126 127 /// <summary> 128 /// 双击某项播放 129 /// </summary> 130 private void lvDetail_DoubleClick(object sender, EventArgs e) 131 { 132 if (lvDetail.SelectedItems.Count > 0) 133 { 134 wmp.currentMedia = wmp.currentPlaylist.Item[int.Parse(lvDetail.SelectedItems[0].Text) - 1]; 135 } 136 } 137 } 138 }
程序下载:音乐播放器.rar