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silverlight 播放器,丑丑版

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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:



ContractedBlock.gif

ExpandedBlockStart.gif

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
 }
转载于:https://www.cnblogs.com/benbenfishfish/archive/2011/06/28/2092401.html


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    2022年10月30日 
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