利用Window Media Player 控件自己做一款小巧的mp3播放器来听音乐 ，是不是很享受呢？今天刚写出来的，听听mp3感觉还不错哦。 闲话少说，进入正题。
Mp3播放器主要完成下列功能:
1. 添加歌曲，可以添加单个乐曲或者指定文件夹内包括其子文件夹内的所有mp3乐曲到播放列表。
2. 删除指定歌曲或所有歌曲。
3. 播放的控制。包括选择上一首，下一首播放，顺序播放，循环播放和随机播放。循环播放又分单个歌曲的循环播放和所有歌曲的循环播放。
首先建立类player。
{
private AxWMPLib.AxWindowsMediaPlayer myPlayer;
private string[] playList;
private int numOfMusic;
private int currentPlay;
public int NumOfMusic
{
get
{
return numOfMusic;
}
}
public WMPLib.WMPPlayState playstate
{
get
{
return myPlayer.playState;
}
}
public string PlayList(int num)
{
return playList[num];
}
public Player(AxWMPLib.AxWindowsMediaPlayer mediaPlayer)
{
myPlayer = mediaPlayer;
playList = new string[1000];
numOfMusic = 0;
}
public void AddFile(string path)
{
if(numOfMusic < 1000)
{
numOfMusic ++;
playList[numOfMusic] = path;
}
}
public void DelFile(int selectNum)
{
for(int i = selectNum; i <= numOfMusic - 1; i++)
{
playList[i] = playList[i + 1];
}
numOfMusic --;
}
public void play(int selectNum)
{
myPlayer.URL = playList[selectNum];
currentPlay = selectNum;
}
public int NextPlay(int type)
{
/* type = 0 顺序
type = 1 重复播放全部
type = 2 重复播放一首
type = 3 随机播放
*/
switch (type)
{
case 0:
currentPlay ++;
if(currentPlay > numOfMusic)return 0;
else return currentPlay;
case 1:
currentPlay ++;
if(currentPlay > numOfMusic) return 1;
else return currentPlay;
case 2:
return currentPlay;
case 3:
Random rdm = new Random(unchecked((int)DateTime.Now.Ticks));
currentPlay = rdm.Next() % numOfMusic;
if(currentPlay == 0) return numOfMusic;
else return currentPlay;
default:
return 0;
}
}
}
分功能列出其他主要代码
添加单个歌曲
{
string path = this.openFileDialog1.FileName;
FileInfo f = new FileInfo(path);
MyPlayer.AddFile(f.FullName);
string STRFILE = Convert.ToString(MyPlayer.NumOfMusic);
for(int i = 1;i<=5-STRFILE.Length;i++)STRFILE+=’ ’;
STRFILE += f.Name;
this.listBox1.Items.Add(STRFILE);
}
利用递归函数showfiles实现所有层歌曲都添加到歌曲列表中。
{
DirectoryInfo dir = new DirectoryInfo(path);
foreach(FileInfo f in dir.GetFiles("*.mp3"))
{
MyPlayer.AddFile(f.FullName);
}
foreach(DirectoryInfo f in dir.GetDirectories())
{
showfiles(f.FullName,listBox1);
}
实现播放上一首
{
listBox1.SelectedIndex --;
if(listBox1.SelectedIndex <0)listBox1.SelectedIndex = MyPlayer.NumOfMusic - 1;
MyPlayer.play(listBox1.SelectedIndex + 1);
}
{
listBox1.SelectedIndex = (listBox1.SelectedIndex + 1) % MyPlayer.NumOfMusic;
MyPlayer.play(listBox1.SelectedIndex + 1);
}
利用Player的NextPlay方法返回的值来选择下一次播放的内容。
同时利用PlayStateChange事件来实现由一曲到下一曲的替换，但是在响应PlayStateChange事件的时候直接改变Player的url无法让它直接播放下一曲，解决方法如下:
{
if(MyPlayer.playstate == WMPLib.WMPPlayState.wmppsMediaEnded)
{
timer1.Start();
}
}
private void timer1_Tick(object sender, System.EventArgs e)
{
timer1.Stop();
int selectnum = 0;
if(menuItem13.Checked)selectnum = MyPlayer.NextPlay(0);
else if (menuItem15.Checked)selectnum = MyPlayer.NextPlay(1);
else if (menuItem16.Checked)selectnum = MyPlayer.NextPlay(2);
else if (menuItem17.Checked)selectnum = MyPlayer.NextPlay(3);
if(selectnum != 0)
{
listBox1.SelectedIndex = selectnum - 1;
MyPlayer.play(selectnum);
}
}
至此主要功能便完成了！立刻用来听听mp3,自己的东西感觉就是不一样哦！