1 <Window
2 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
3 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
4 xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
5 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
6 x:Class="MusicPlayer.Window1"
7 xmlns:Converters ="clr-namespace:MusicPlayer"
8 WindowStyle="None" ResizeMode="NoResize"
9 Title="Window1" Height="240" Width="402" mc:Ignorable="d"
10
11 Background="#FF554D4A">
12 <Window.Resources>
13 <Style TargetType="Button">
14 <Setter Property="Background">
15 <Setter.Value>
16 <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
17 <GradientStop Offset="0" Color="White"/>
18 <GradientStop Offset="0.5" Color="#FF554D4A"/>
19 </LinearGradientBrush>
20 </Setter.Value>
21 </Setter>
22 <Setter Property="FontStyle" Value="Italic"/>
23 <Setter Property="Margin" Value="5"/>
24 <Setter Property="Width" Value="60"/>
25 <Setter Property="Foreground" Value="Gold"/>
26 <Style.Triggers>
27 <Trigger Property="Button.IsMouseOver" Value="True">
28 <Setter Property="Foreground" Value="Black"/>
29 </Trigger>
30 </Style.Triggers>
31 </Style>
32 </Window.Resources>
33 <Grid Height="240" Background="#FF554D4A" Margin="0,5,0,-5"
34
35 d:LayoutOverrides="HorizontalMargin">
36 <Grid.RowDefinitions>
37 <RowDefinition/>
38 <RowDefinition Height="30"/>
39 <RowDefinition Height="45"/>
40 </Grid.RowDefinitions>
41 <MediaElement x:Name="mdeMusic"
42 IsMuted="False" Stretch="Fill" Volume="0.5"
43 MediaEnded="mdeMusic_MediaEnded"
44 MediaOpened="mdeMusic_MediaOpened"
45 LoadedBehavior="Manual"
46 Grid.Row="0"
47 UnloadedBehavior="Stop"/>
48 <Slider Minimum="0" ValueChanged="sldProgress_ValueChanged"
49 x:Name="sldProgress" Grid.Row="1" VerticalAlignment="Bottom"/>
50 <Grid Grid.Row="2">
51 <Grid.ColumnDefinitions>
52 <ColumnDefinition Width="75"/>
53 <ColumnDefinition Width="75"/>
54 <ColumnDefinition Width="75"/>
55 <ColumnDefinition />
56 <ColumnDefinition Width="150"/>
57 </Grid.ColumnDefinitions>
58 <Button Grid.Column="0" x:Name="btnPlay" Content="Play"
59
60 Click="btnPlay_Click"></Button>
61 <Button Grid.Column="1" x:Name="btnStop" Content="Stop" Click="btnStop_Click"
62
63 ></Button>
64 <Button Grid.Column="2" x:Name="btnOpen" Content="Open" Click="btnOpen_Click"
65
66 HorizontalAlignment="Right" d:LayoutOverrides="Width"></Button>
67 <Slider Value="{Binding Volume, ElementName=mdeMusic, Mode=TwoWay,
68
69 UpdateSourceTrigger=Default}"
70 VerticalAlignment="Center"
71 Maximum="1" LargeChange="0.1" SmallChange="0.01" x:Name="sldVolumn"
72
73 Grid.Column="4" />
74 </Grid>
75 <TextBlock x:Name="txtMusicName" TextWrapping="Wrap" Margin="0,-3,0,0"
76
77 VerticalAlignment="Top" Height="25" />
78 </Grid>
79 </Window>
80
81
82
83 后台代码：
84
85 using System;
86 using System.Collections.Generic;
87 using System.Linq;
88 using System.Text;
89 using System.Windows;
90 using System.Windows.Controls;
91 using System.Windows.Data;
92 using System.Windows.Documents;
93 using System.Windows.Input;
94 using System.Windows.Media;
95 using System.Windows.Media.Imaging;
96 using System.Windows.Navigation;
97 using System.Windows.Shapes;
98 using Microsoft.Win32;
99 using System.Windows.Media.Animation;
100 using System.Windows.Threading;
101
102 namespace MusicPlayer
103 {
104 /// <summary>
105 /// Window1.xaml 的交互逻辑
106 /// </summary>
107 public partial class Window1 : Window
108 {
109 OpenFileDialog openFile = new OpenFileDialog();
110 private string videoName = "";
111 private DispatcherTimer timer;
112 public Window1()
113 {
114 InitializeComponent();
115 this.timer = new DispatcherTimer();
116 }
117
118
119 /// <summary>
120 /// 打开文件时 设置进度条最大值
121 /// </summary>
122 /// <param name="sender"></param>
123 /// <param name="e"></param>
124 private void mdeMusic_MediaOpened(object sender,
125
126 System.Windows.RoutedEventArgs e)
127 {
128 double seconds = mdeMusic.NaturalDuration.TimeSpan.TotalSeconds;
129 sldProgress.Maximum = seconds / 10;
130 sldProgress.Value = 0;
131
132 //一个所代表的秒数
133 double baseSecond = seconds / sldProgress.Maximum;
134 this.timer.Interval = new TimeSpan(0, 0, 1);
135 this.timer.Tick += new EventHandler(timer_Tick);
136 this.timer.Start();
137 }
138
139 /// <summary>
140 /// 播放结束时
141 /// </summary>
142 /// <param name="sender"></param>
143 /// <param name="e"></param>
144 private void mdeMusic_MediaEnded(object sender, RoutedEventArgs e)
145 {
146 btnPlay.Content = "Play";
147 mdeMusic.Position = TimeSpan.Zero;
148 mdeMusic.Pause();
149 }
150
151 private void btnPlay_Click(object sender,
152
153 System.Windows.RoutedEventArgs e)
154 {
155 if (this.btnPlay.Content.ToString() == "Play")
156 {
157 this.btnPlay.Content = "Pause";
158 mdeMusic.Play();
159 txtMusicName.Text = "正在播放：" + openFile.SafeFileName;
160 InitializePropertyValues();
161 }
162 else
163 {
164 mdeMusic.Pause();
165 txtMusicName.Text = "已暂停：" + openFile.SafeFileName;
166 this.btnPlay.Content = "Play";
167 }
168 }
169
170 /// <summary>
171 ///
172 /// </summary>
173 public void UserControl1()
174 {
175 InitializeComponent();
176 Timeline.DesiredFrameRateProperty.OverrideMetadata(
177 typeof(Timeline),
178 new FrameworkPropertyMetadata
179 {
180 DefaultValue = 20
181 });
182 }
183
184 private void btnStop_Click(object sender,
185
186 System.Windows.RoutedEventArgs e)
187 {
188 mdeMusic.Position = TimeSpan.Zero;
189 this.txtMusicName.Text = "";
190 btnPlay.Content = "Play";
191 mdeMusic.Stop();
192 }
193 /// <summary>
194 /// 打开音乐
195 /// </summary>
196 /// <param name="sender"></param>
197 /// <param name="e"></param>
198 private void btnOpen_Click(object sender,
199
200 System.Windows.RoutedEventArgs e)
201 {
202 openFile.Filter = "All Files(*.*)|*.*";
203 openFile.InitialDirectory = "F:\\films";
204 openFile.ShowDialog(this);
205 videoName = openFile.FileName;
206 if ((videoName != null) && (videoName != ""))
207 {
208 Uri file = new Uri(videoName);
209 mdeMusic.Source = file;
210 mdeMusic.LoadedBehavior = MediaState.Manual;
211 mdeMusic.Play();
212 }
213 }
214
215 void InitializePropertyValues()
216 {
217 mdeMusic.Volume = (double)sldVolumn.Value;
218 }
219
220 private void sldProgress_ValueChanged(object sender,
221
222 RoutedPropertyChangedEventArgs<double> e)
223 {
224 TimeSpan span = new TimeSpan(0, 0, (int)(sldProgress.Value) * 10);
225 mdeMusic.Position = span;
226 }
227
228 void timer_Tick(object sender, EventArgs e)
229 {
230 this.sldProgress.ValueChanged -=
231 new RoutedPropertyChangedEventHandler<double>
232
233 (sldProgress_ValueChanged);
234
235 this.sldProgress.Value = this.mdeMusic.Position.TotalSeconds /
236
237 10.0;
238
239 this.sldProgress.ValueChanged +=
240 new RoutedPropertyChangedEventHandler<double>
241
242 (sldProgress_ValueChanged);
243 try
244 {
245 this.txtMusicName.Text = "正在播放:" + openFile.SafeFileName;
246 //显示播放时间/总时间
247 //this.txtMessage.Text = this.mdeMusic.Position.Hours.ToString
248
249 () + ":" + this.mdeMusic.Position.Minutes.ToString() + ":" +
250
251 this.mdeMusic.Position.Seconds.ToString() + "/" +
252
253 this.mdeMusic.NaturalDuration.TimeSpan.Hours.ToString() + ":" +
254
255 this.mdeMusic.NaturalDuration.TimeSpan.Minutes.ToString() + ":" +
256
257 this.mdeMusic.NaturalDuration.TimeSpan.Seconds.ToString();
258 }
259 catch
260 {
261 MessageBox.Show("出错了:" + e);
262 }
263 }
264 }
265 }
