元素之间的空白空间.NET MAUI

Question

整个页面是一个网格。我试图将子网格放置在父网格的顶部。这适用于 Android。在 Apple 上也适用于 iPhone 14。在 iPhone 14 和 15 上，显示父子网格之间的空间。

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:mct="clr-namespace:CommunityToolkit.Maui.Behaviors;assembly=CommunityToolkit.Maui"
             x:Class="IOSMauiAppGroupsOneApp.NewPage1"
             Shell.BackgroundColor="{AppThemeBinding Light=#3856A8, Dark=#232234}"
             Shell.NavBarIsVisible="False"
             Title="NewPage1">
    <ContentPage.Behaviors>
        <mct:StatusBarBehavior StatusBarColor="{AppThemeBinding Light=#3856A8, Dark=#232234}" />
    </ContentPage.Behaviors>
    <Grid BackgroundColor="Red">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <Grid Margin="0"
              Grid.Row="0"
              ColumnSpacing="16"
              Padding="16,12,16,12"
              HorizontalOptions="Fill"
              VerticalOptions="Start"
              BackgroundColor="{AppThemeBinding Light=#3856A8, Dark=#232234}">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            <Button
                 Grid.Column="0"
                 Text="Сохранить"
                 BorderColor="White"
                 BackgroundColor="Transparent"
                 CornerRadius="8"
                 TextColor="White"/>
            <Image
                Grid.Column="3"
                Source="icon_folder.png"
                HorizontalOptions="EndAndExpand"
                VerticalOptions="Center"
                ToolTipProperties.Text="Открыть документ">
            </Image>
            <Image
                Grid.Column="2"
                HorizontalOptions="EndAndExpand">
            </Image>
        </Grid>
    </Grid>
</ContentPage>

期望：子网格将与父网格的上边缘对齐。

Answer 1

https://github.com/dotnet/maui/issues/16617 链接到同一问题。它附有解决方法/修复程序。

如前所述，视图之间的额外空间似乎是 Apple 的初始设计。