<Grid>

            <Grid.RowDefinitions>

                <RowDefinition></RowDefinition>

                <!--显示虚拟键盘 他的高度会为虚拟键盘高度-->

                <RowDefinition x:Name="HightKeyboard" Height="Auto"></RowDefinition>

            </Grid.RowDefinitions>

            <!--这里才是原本的界面-->

            <!--原本的使用VerticalAlignment="Center"-->

            <Grid>

                <!--这里写界面-->

                <StackPanel Orientation="Vertical"

                          VerticalAlignment="Center">

                    <TextBlock Text="我是界面"

                         HorizontalAlignment="Center"></TextBlock>

                    <TextBox Margin="10,10,10,10" Header="输入"></TextBox>

                    <TextBlock Margin="10,100,10,10" Text="手机点击输入 会隐藏我"

                               HorizontalAlignment="Center"></TextBlock>

                    <TextBlock></TextBlock>

                </StackPanel>

            </Grid>

        </Grid>

            InputPane.GetForCurrentView().Showing += (s, e) =>

            {

                HightKeyboard.Height=new GridLength(e.OccludedRect.Height);

            };

            InputPane.GetForCurrentView().Hiding += (s, e) =>

            {

                HightKeyboard.Height=new GridLength(1);

            };