以下是我的设计,包含媒体元素,播放,暂停,完整窗口和搜索器。
<MediaElement x:Name="VideosMediaElement" VerticalAlignment="Top"
Height="250" Width="355" Margin="0,20,0,0"
BufferingProgressChanged="VideosMediaElement_BufferingProgressChanged"
RealTimePlayback="True"
/>
<Grid x:Name="mediaGrid">
<Border VerticalAlignment="Bottom" Height="60" Background="Black"
Opacity="0.1">
</Border>
<Image x:Name="PlayIcon" Source="Assets/Play-icon.png"
Height="35" HorizontalAlignment="Left" VerticalAlignment="Bottom"
Margin="3,0,0,10" Visibility="Collapsed" Tapped="PlayIcon_Tapped">
</Image>
<Image x:Name="PauseIcon" Source="Assets/Pause.png"
Height="35" HorizontalAlignment="Left" VerticalAlignment="Bottom"
Margin="3,0,0,10" Tapped="PauseIcon_Tapped" Visibility="Visible">
</Image>
<TextBlock x:Name="duration" Foreground="White" VerticalAlignment="Bottom"
Margin="43,0,0,20">
</TextBlock>
<ProgressBar x:Name="videoProgressBar" VerticalAlignment="Bottom"
Margin="15 0 10 25" Foreground="DarkBlue" Background="Gray"
Width="180" Height="10" Minimum="0"
Maximum="{Binding Path=NaturalDuration.TimeSpan.TotalSeconds,
Mode=TwoWay,
ElementName=VideosMediaElement}"
Value="{Binding Path=Position.TotalSeconds, Mode=TwoWay,
ElementName=VideosMediaElement}"
Tapped="videoProgressBar_Tapped"
/>
<TextBlock x:Name="maximumDuration" Foreground="White" Margin="0,0,40,20"
VerticalAlignment="Bottom" HorizontalAlignment="Right">
</TextBlock>
<Image x:Name="ExpandEnabled" Source="Assets/Fullscreen.png"
Tapped="Zoom_Tapped" Height="35" Margin="0 0 3 10"
HorizontalAlignment="Right" VerticalAlignment="Bottom">
</Image>
</Grid>
如果我点击右侧的完整窗口图标,视频将显示为带有播放,暂停,搜索者和完整窗口按钮的完整窗口。
VideosMediaElement.IsFullWindow = true;
<MediaElement x:Name="VideosMediaElement" VerticalAlignment="Top"
Height="300" Width="360"
BufferingProgressChanged="VideosMediaElement_BufferingProgressChanged"
AreTransportControlsEnabled="True">
<MediaElement.TransportControls>
<MediaTransportControls IsCompact="True" IsZoomButtonVisible="False"
IsZoomEnabled="False"
IsPlaybackRateButtonVisible="True"
IsPlaybackRateEnabled="True"
/>
</MediaElement.TransportControls>
</MediaElement>
视频在完整窗口中播放,但是当我设置IsWindowFull
属性时,播放,暂停和搜索器会隐藏。如何在媒体元素处于完整窗口时显示这些控件?
答案 0 :(得分:4)
当MediaElement
进入FullScreen
模式时,FullWindowMediaRoot
将托管MeidiaElement
,并且您的mediaGrid
将不会在此时间内显示。一种方法是@Chris W.说使用TransportControls
的{{1}},但这在Windows 8.1应用程序中不可用,因为您开发了一个Windows Phone 8.1应用程序,没有这样的问题。
由于WP8.1不支持自定义传输控制,因此对于Windows Phone 8.1应用,您可以手动将MediaElement
和Width
Height
设置为应用的大小,例如:
MediaElement
由于应用程序在WP8.1上作为全屏模式运行,因此此方法也会使VideosMediaElement.Width = Window.Current.Bounds.Width;
VideosMediaElement.Height = Window.Current.Bounds.Height;
看起来像是全屏模式。当您想要“退出全屏模式”时,您只需重置MediaElement
和Height
属性。