试图安排Ui响应所有uwp平台

Question

我试图在所有uwp平台上安排UI响应但是出现了一些问题 ，我是uwp开发的新手。任何想法如何在Windows 10移动设备，标签和桌面上实现相同的功能。 Xaml代码

<Grid Name="HomeView" >      

        <Grid.Background>
            <ImageBrush  ImageSource="Assets/Home/home_android.jpg"/>
        </Grid.Background>
        <StackPanel>
            <MediaElement x:Name="mycontrol" Source="/Audio/bg_sound.mp3"  AutoPlay="True"/>
        </StackPanel>
        <StackPanel>
            <MediaElement x:Name="mediaElement1" />
        </StackPanel>
        <RelativePanel>
        <Image Source="Assets/Home/btn_learn_colours.png"              
               HorizontalAlignment="Left"
               VerticalAlignment="Bottom"
               Margin="20,90,0,60"
               Width="180" Height="200"
               Tapped="L_color_tap"/>
        <Image Source="Assets/Home/btn_paint.png"              
               HorizontalAlignment="Center"
               VerticalAlignment="Bottom"
               Margin="220,90,0,0"
               Width="180" Height="200"
               Tapped="Paint"/>
        <Image Source="Assets/Home/btn_quiz_f.png"              
               HorizontalAlignment="Right"
               VerticalAlignment="Center"
               Margin="440,60,0,0"
               Width="180" Height="200"
               Tapped="Quiz"/>
        <Image Source="Assets/Home/btn_other_apps.png"              
               HorizontalAlignment="Right"
               VerticalAlignment="Bottom"
               Margin="440,140,0,0"
               Width="180" Height="200"
               Tapped="Other_Apps"/>
        </RelativePanel>

    </Grid>