.NET MAUI中CommunityToolkit.Maui的KeyboardExtensions遮挡Entry问题排查

我在基于.NET 8的.NET MAUI应用中使用CommunityToolkit.Maui（版本7.0.0）的KeyboardExtensions，用于避免软键盘遮挡用户控件。该功能虽有效果，但Entry仍会被软键盘部分遮挡。我曾怀疑是Entry外层的Border导致的视觉问题，但移除Border后问题依旧。点击密码Entry时也会出现类似的半遮挡情况。

使用环境：Visual Studio 17.8.0 + .NET 8正式版

LoginPage.xaml代码 #

<!-- Login Form -->
<Grid
    RowDefinitions="*,60,60,100,50"
    Padding="0">

    <!-- Background Image -->
    <Image
        Grid.RowSpan="5"
        Source="teton_snake_dimmed.jpg"
        Aspect="AspectFill" />

    <!-- 0: Logo -->
    <Image
        Grid.Row="0"
        Source="ingrid_connect_logo.png"
        HeightRequest="130"
        HorizontalOptions="Center"
        VerticalOptions="Center" />

    <!-- 1: Username Entry -->
    <Border
        Grid.Row="1"
        BackgroundColor="{StaticResource Gray100}"
        Padding="5"
        HorizontalOptions="Center"
        VerticalOptions="Center">
        <Border.StrokeShape>
            <RoundRectangle CornerRadius="5,5,5,5" />
        </Border.StrokeShape>
        <Entry
            Text="{Binding UserName}"
            TextColor="{StaticResource Black}"
            BackgroundColor="White"
            Placeholder="Email Address"
            Focused="ShowKeyboard"
            Unfocused="HideKeyboard"
            Keyboard="Email"
            WidthRequest="350" />
    </Border>

    <!-- 2: Password Entry -->
    <Border
        Grid.Row="2"
        BackgroundColor="{StaticResource Gray100}"
        Padding="5"
        HorizontalOptions="Center"
        VerticalOptions="Center">
        <Border.StrokeShape>
            <RoundRectangle CornerRadius="5,5,5,5" />
        </Border.StrokeShape>
        <Entry
            Text="{Binding Password}"
            TextColor="{StaticResource Black}"
            BackgroundColor="White"
            IsPassword="True"
            Placeholder="Password"
            Focused="ShowKeyboard"
            Unfocused="HideKeyboard"
            WidthRequest="350" />
    </Border>

    <!-- 3: Submit Button -->
    <Button
        Grid.Row="3"
        BackgroundColor="{StaticResource Primary}"
        Text="S I G N    I N"
        FontSize="13"
        FontAttributes="Bold"
        Command="{Binding SubmitCommand}"
        HeightRequest="50"
        WidthRequest="350"
        HorizontalOptions="Center"
        VerticalOptions="Center" />

    <!-- 4: Register/Forgot Password Links -->
    <HorizontalStackLayout
        Grid.Row="4"
        HorizontalOptions="Center"
        VerticalOptions="Center">

        <!-- New User Sign Up -->
        <Border
            BackgroundColor="Transparent"
            StrokeThickness="0"
            Padding="7">
            <Border.GestureRecognizers>
                <TapGestureRecognizer
                    Command="{Binding GoToSignUpCommand}"/>
            </Border.GestureRecognizers>
            <Label
                Text="New User Sign Up"
                TextColor="White"
                FontSize="12" />
        </Border>

        <!-- Seperator -->
        <Border
            BackgroundColor="Transparent"
            StrokeThickness="0"
            Padding="7">
            <Label
                Text="|"
                TextColor="White"
                FontSize="12"
                Margin="5,0,5,0" />
        </Border>

        <!-- Forgot Password -->
        <Border
            BackgroundColor="Transparent"
            StrokeThickness="0"
            Padding="7">
            <Border.GestureRecognizers>
                <TapGestureRecognizer
                    Command="{Binding GoToForgotPasswordCommand}"/>
            </Border.GestureRecognizers>
            <Label
                Text="Forgot Password"
                TextColor="White"
                FontSize="12" />
        </Border>

    </HorizontalStackLayout>

</Grid>

后台代码 #

private async void ShowKeyboard(object sender, FocusEventArgs e)
{
    var entry = (Entry)sender;
    if (!KeyboardExtensions.IsSoftKeyboardShowing(entry))
        await KeyboardExtensions.ShowKeyboardAsync(entry, default);
}

private async void HideKeyboard(object sender, FocusEventArgs e)
{
    var entry = (Entry)sender;
    if (KeyboardExtensions.IsSoftKeyboardShowing(entry))
        await KeyboardExtensions.HideKeyboardAsync(entry, default);
}

请问这是布局问题，还是CommunityToolkit.Maui中KeyboardExtensions的问题？

内容的提问来源于stack exchange，提问作者Sam