基于C#制作一个音乐播放器-CFANZ编程社区

- 实现流程

实现流程

1.1、创建项目

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1.2、准备素材

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1.3、功能开发

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 public void addLocalSong(string[] files)
        {
            XmlDocument xd = new XmlDocument();
            xd.Load(Directory.GetCurrentDirectory() + "\\data\\" + "music.xml");
            XmlElement xe = xd.DocumentElement;
            int i = xe.ChildNodes.Count;
            foreach (string str in files)
            {
                i++;
                XmlNode x = xd.CreateElement("path");
                x.InnerText = str;
                xe.AppendChild(x);
                string[] t = { i.ToString(), Path.GetFileNameWithoutExtension(str) };
                ListViewItem lvi = new ListViewItem(t);
                this.listView1.Items.Add(lvi);
            }
            xd.Save(Directory.GetCurrentDirectory() + "\\data\\" + "music.xml");
        }

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OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "音乐|*.mp3";
ofd.Multiselect = true;
ofd.Title = "本地歌曲添加";

DialogResult dr = ofd.ShowDialog();
if (dr == DialogResult.OK)
{
addLocalSong(ofd.FileNames);
}

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 		/// <summary>
        /// 播放或暂停歌曲
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            if (this.now_music_id == -1)
                return;
            if (this.button2.Text == "播放" && this.trackBar1.Value < (this.trackBar1.Maximum - 2))
            {
                this.timer1.Enabled = true;
                this.Mp3Player.Ctlcontrols.play();
                this.button2.Text = "暂停";
            }
            else if (this.button2.Text == "播放" && this.trackBar1.Value >= (this.trackBar1.Maximum - 2))
            {
                this.timer1.Enabled = true;
                this.button2.Text = "暂停";
                this.PlayModeChange();
            }
            else 
            {
                this.timer1.Enabled = false;
                this.Mp3Player.Ctlcontrols.pause();               
                this.button2.Text = "播放";      
            }
        }

 			if (this.listView1.SelectedItems.Count == 0)
                return;
            this.button2.Text = "暂停";
            this.timer1.Enabled = true;
            ListViewItem lvi = this.listView1.SelectedItems[0];

            //MessageBox.Show("双击");
            this.label3.Text = this.listView1.SelectedItems[0].SubItems[1].Text;
        
            this.label3.Text = lvi.SubItems[1].Text;
            if (this.label3.Text.Length > 15)
                this.label3.Text = this.label3.Text.Substring(0, 13) + "..";
            this.label3.Location = new Point((int)(this.panel1.Width / 2 - this.label3.Width / 2), this.label3.Location.Y);

            this.now_music_id = Convert.ToInt32(lvi.SubItems[0].Text) - 1;
            XmlDocument xd = new XmlDocument();
            xd.Load(Directory.GetCurrentDirectory() + "\\data\\" + "music.xml");
            string filename = xd.DocumentElement.ChildNodes[this.now_music_id].InnerText;
            this.musicPlay(filename);
            string lrc_filename = Path.GetDirectoryName(filename) + "\\" + Path.GetFileNameWithoutExtension(filename) + ".lrc";
            if (File.Exists(lrc_filename))
            {
                loadLrc(lrc_filename);    
            }
            else
            {
                this.richTextBox1.Text = "歌词文件不存在";
            }

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 	if (this.now_music_id == -1)
	return;
	
	this.Mp3Player.Ctlcontrols.currentPosition = this.trackBar1.Value;
	this.label1.Text = this.Mp3Player.Ctlcontrols.currentPositionString;
	
	
	if (this.trackBar1.Value >= (this.trackBar1.Maximum - 2) && this.button2.Text == "暂停")
	{
	this.PlayModeChange();
	}

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private void trackBar2_Scroll(object sender, EventArgs e)
{
    if (this.now_music_id == -1)
        return;

    this.Mp3Player.settings.volume = this.trackBar2.Value;
}