silverlight 播放器,丑丑版
看到园子里的大虾们写了播放器,这不,我也写了一个和大家在此分享一下.
分别是前台和后台;
备注:参考了一些园子里朋友的代码片段,该播放器是一个独立的 操作界面
需要传入 音频路径 .为了测试 您可以直接赋值给url
1 <Grid x:Name="LayoutRoot" Background="White" Height="237" Width="499">
2
3 <MediaElement Height="0" HorizontalAlignment="Left" Margin="12,12,0,0" Name="myElement" VerticalAlignment="Top" Width="0" LoadedBehavior="Manual" MediaEnded="myElement_MediaEnded" />
4 <Button Content="播放" Height="23" HorizontalAlignment="Left" Margin="10,41,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
5 <Button Content="暂停" Height="23" HorizontalAlignment="Left" Margin="111,41,0,0" Name="button2" VerticalAlignment="Top" Width="75" Click="button2_Click" />
6 <Button Content="停止" Height="23" HorizontalAlignment="Left" Margin="211,41,0,0" Name="button3" VerticalAlignment="Top" Width="75" Click="button3_Click" />
7 <Button Content="静音" Height="23" HorizontalAlignment="Left" Margin="319,41,0,0" Name="button4" VerticalAlignment="Top" Width="75" Click="button4_Click" />
8 <Label Height="23" HorizontalAlignment="Left" Margin="138,84,0,0" Name="label1" VerticalAlignment="Top" Width="120" />
9 <TextBlock Height="23" HorizontalAlignment="Left" Margin="10,113,0,0" Name="textBlock2" Text="当前进度;" VerticalAlignment="Top" />
10 <Slider Height="23" HorizontalAlignment="Left" Margin="64,108,0,0" Name="slider1" VerticalAlignment="Top" Width="293" Value="{Binding ElementName=myElement,Path=Position}" ValueChanged="slider1_ValueChanged" />
11 <Label Height="23" HorizontalAlignment="Right" Margin="0,113,12,0" Name="label2" VerticalAlignment="Top" Width="132" />
12 <Label Height="23" HorizontalAlignment="Left" Margin="12,84,0,0" Name="label3" VerticalAlignment="Top" Width="120" />
13 <TextBlock Height="23" HorizontalAlignment="Left" Margin="259,147,0,0" Name="textBlock5" Text="音量;" VerticalAlignment="Top" />
14 <Slider Height="23" HorizontalAlignment="Left" Margin="295,141,0,0" Name="slider2" VerticalAlignment="Top" Width="100" ValueChanged="slider2_ValueChanged" />
15 <Label Height="23" HorizontalAlignment="Left" Margin="389,136,0,0" Name="label4" VerticalAlignment="Top" Width="59" />
16 <Button Content="下载" Height="23" HorizontalAlignment="Left" Margin="412,41,0,0" VerticalAlignment="Top" Name="btnDown" Width="75" Click="btnDown_Click_1" />
17 <Button Content="关闭" Height="23" HorizontalAlignment="Left" Margin="424,214,0,0" Name="button5" VerticalAlignment="Top" Width="75" Click="button5_Click" />
18 </Grid>
19
=后台:
View Code
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Windows;
6 using System.Windows.Controls;
7 using System.Windows.Data;
8 using System.Windows.Documents;
9 using System.Windows.Input;
10 using System.Windows.Media;
11 using System.Windows.Media.Imaging;
12 using System.Windows.Navigation;
13 using System.Windows.Shapes;
14 using System.IO;
15 using System.Diagnostics;
16
17 namespace eOMS.CR
18 {
19 /// <summary>
20 /// PlayWindow.xaml 的交互逻辑
21 /// </summary>
22
23 public partial class PlayWindow : UserControl
24 {
25 string Url = string.Empty; //音频文件路径
26 string sPath = string.Empty;//保存文件路径
27 string isplay = "0"; //标记是否已经处于播放状态
28 System.Windows.Threading.DispatcherTimer timer = new System.Windows.Threading.DispatcherTimer();
29
30 public PlayWindow()
31 {
32 InitializeComponent();
33
34 }
35
36 public PlayWindow( string SoundUrl)
37 {
38
39 try
40 {
41
42 InitializeComponent();
43 Url = SoundUrl;
44 myElement.Source = new Uri(Url, UriKind.Absolute);
45 timer.Interval = new TimeSpan(1000);
46 timer.Tick += new EventHandler(timer_Tick);
47 timer.Start();
48 }
49 catch (Exception ex)
50 {
51
52 MessageBox.Show(ex.Message);
53
54 }
55
56 }
57 void timer_Tick(object sender, EventArgs e)
58 {
59 label2.Content = string.Format(
60 "{0}{1:00}:{2:00}:{3:00}",
61 "播放进度：",
62 myElement.Position.Hours,
63 myElement.Position.Minutes,
64 myElement.Position.Seconds);
65 label3.Content = string.Format("下载进度：{0:##%}", myElement.DownloadProgress);
66
67 }
68
69
70 private void InitializePropertyValues()
71 {
72 //myElement.Volume = (double)volumeSlider.Value;
73 // myElement.Source = new Uri(Url, UriKind.Absolute);
74 }
75 /// <summary>
76 /// 下载按钮引发的事件
77 /// </summary>
78 /// <param name="sender"></param>
79 /// <param name="e"></param>
80 //播放进度
81 private void slider1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
82 {
83
84 try
85 {
86
87 if ( isplay=="1")
88 {
89 int value = (int)slider1.Value;
90 int myvalue = (int)myElement.NaturalDuration.TimeSpan.TotalSeconds;
91 TimeSpan ts = new TimeSpan(0, 0, 0, 0, value);
92 //myElement.Position = TimeSpan.FromSeconds((myvalue* value) / 10);
93 myElement.Position = ts;
94 }
95
96
97 }
98 catch (Exception ex)
99 {
100
101 throw ex;
102 }
103
104 }
105 /// <summary>
106 /// 播放
107 /// </summary>
108 /// <param name="sender"></param>
109 /// <param name="e"></param>
110 private void button1_Click(object sender, RoutedEventArgs e)
111 {
112 myElement.Play();
113 isplay = "1";
114 }
115 /// <summary>
116 /// 暂停
117 /// </summary>
118 /// <param name="sender"></param>
119 /// <param name="e"></param>
120 private void button2_Click(object sender, RoutedEventArgs e)
121 {
122 isplay = "0";
123 myElement.Pause();
124 }
125 /// <summary>
126 /// 停止
127 /// </summary>
128 /// <param name="sender"></param>
129 /// <param name="e"></param>
130 private void button3_Click(object sender, RoutedEventArgs e)
131 {
132 isplay = "0";
133 myElement.Stop();
134 }
135 /// <summary>
136 /// 静音
137 /// </summary>
138 /// <param name="sender"></param>
139 /// <param name="e"></param>
140 private void button4_Click(object sender, RoutedEventArgs e)
141 {
142 myElement.IsMuted = !myElement.IsMuted;
143 }
144 /// <summary>
145 /// 音量控制
146 /// </summary>
147 /// <param name="sender"></param>
148 /// <param name="e"></param>
149 private void slider2_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
150 {
151 //音量控制
152 double d = (double)(((double)slider2.Value) / 10);
153 myElement.Volume = d;
154 label4.Content = (double.Parse(d.ToString("F2")) * 100) + "%";
155 }
156 /// <summary>
157 /// 下载操作
158 /// </summary>
159 /// <param name="sender"></param>
160 /// <param name="e"></param>
161 private void btnDown_Click_1(object sender, RoutedEventArgs e)
162 {
163
164 System.Windows.Forms.SaveFileDialog sf = new System.Windows.Forms.SaveFileDialog();
165 sf.Filter = "音频文件|*.wav";
166 if ( sf.ShowDialog()== System.Windows.Forms.DialogResult.OK)
167 {
168 String targetPath = sf.FileName;
169 System.IO.File.Copy(Url, targetPath, true);
170 }
171
172
173 }
174 /// <summary>
175 /// 隐藏当前窗口
176 /// </summary>
177 /// <param name="sender"></param>
178 /// <param name="e"></param>
179 private void button5_Click(object sender, RoutedEventArgs e)
180 {
181 myElement.Stop();
182 myElement.Close();
183 this.LayoutRoot.Visibility = Visibility.Hidden;
184 }
185
186 private void myElement_MediaEnded(object sender, RoutedEventArgs e)
187 {
188 isplay = "0";
189 }
190
191
192 }
193 }
