MediaElement的暂停，播放功能。
<UserControl x:Class=
"Control_Test.MediaElement"
xmlns=
"http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x=
"http://schemas.microsoft.com/winfx/2006/xaml"
>
<UserControl.Resources>
<ImageBrush x:Key=
"StartImgBrush"
ImageSource=
"Chapter02/player_start.png"
/>
<ImageBrush x:Key=
"PauseImgBrush"
ImageSource=
"Chapter02/player_pause.png"
/>
<ImageBrush x:Key=
"PlayImgBrush"
ImageSource=
"Chapter02/player_play.png"
/>
<ImageBrush x:Key=
"StopImgBrush"
ImageSource=
"Chapter02/player_stop.png"
/>
<!--Button控件模板-->
<ControlTemplate x:Key=
"ButtonTemplate"
TargetType=
"Button"
>
<Grid>
<Rectangle x:Name=
"Rect"
Fill=
"{TemplateBinding Background}"
/>
</Grid>
</ControlTemplate>
<ControlTemplate x:Key=
"PlayButtonTemplate"
TargetType=
"ToggleButton"
>
<Grid>
<Rectangle x:Name=
"Rect"
Fill=
"{StaticResource PlayImgBrush}"
/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property=
"ToggleButton.IsChecked"
Value=
"True"
>
<Setter Property=
"Fill"
Value=
"{StaticResource PauseImgBrush}"
TargetName=
"Rect"
>
</Setter>
</Trigger>
<Trigger Property=
"ToggleButton.IsChecked"
Value=
"False"
>
<Setter Property=
"Fill"
Value=
"{StaticResource PlayImgBrush}"
TargetName=
"Rect"
>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</UserControl.Resources>
<UserControl.CommandBindings>
<CommandBinding Command=
"MediaCommands.TogglePlayPause"
CanExecute=
"CommandBinding_CanExecute"
Executed=
"PlayPause"
/>
<CommandBinding Command=
"MediaCommands.Stop"
CanExecute=
"CommandBinding_CanExecute"
Executed=
"Stop"
/>
<CommandBinding Command=
"MediaCommands.Rewind"
CanExecute=
"CommandBinding_CanExecute"
Executed=
"Stop"
/>
</UserControl.CommandBindings>
<DockPanel>
<Grid DockPanel.Dock=
"Bottom"
>
<Border Width=
"180"
Height=
"24"
Background=
"LightGray"
BorderBrush=
"DarkGray"
BorderThickness=
"1"
CornerRadius=
"12"
SnapsToDevicePixels=
"False"
></Border>
<StackPanel Orientation=
"Horizontal"
HorizontalAlignment=
"Center"
>
<Button Width=
"32"
Height=
"32"
Command=
"MediaCommands.Rewind"
Template=
"{StaticResource ButtonTemplate}"
Background=
"{StaticResource StartImgBrush}"
>Rewind</Button>
<ToggleButton x:Name=
"_playBtn"
Width=
"48"
Height=
"48"
Margin=
"10,0,10,0"
Command=
"MediaCommands.TogglePlayPause"
Template=
"{StaticResource PlayButtonTemplate}"
/>
<Button Width=
"32"
Height=
"32"
Command=
"MediaCommands.Stop"
Template=
"{StaticResource ButtonTemplate}"
Background=
"{StaticResource StopImgBrush}"
>Stop</Button>
</StackPanel>
</Grid>
<MediaElement x:Name=
"myMedia"
LoadedBehavior=
"Manual"
UnloadedBehavior=
"Pause"
Source=
"E:/Bear.wmv"
/>
</DockPanel>
</UserControl>
|
C#Code
private
void
CommandBinding_CanExecute(
object
sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute =
true
;
}
private
void
PlayPause(
object
sender, ExecutedRoutedEventArgs e)
{
if
(_isPlaying)
{
myMedia.Pause();
_isPlaying =
false
;
}
else
{
myMedia.Play();
_isPlaying =
true
;
}
}
private
void
Stop(
object
sender, ExecutedRoutedEventArgs e)
{
myMedia.Stop();
_playBtn.IsChecked =
false
;
_isPlaying =
false
;
}
|
本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/archive/2011/09/20/2182334.html，如需转载请自行联系原作者
