.NET MAUI中CollectionView/DataTemplate在Android与iOS表现差异求助

我用.NET MAUI实现了一个带有DataTemplate的CollectionView，部署到Android和iOS设备时表现完全不同。之前在Xamarin中使用相同代码没有异常。添加WidthRequest（及边距）后Android端样式符合预期，但iOS端仍存在以下问题：

• 打开应用时右侧内容不显示，应用疑似卡顿
• 尝试滚动时，列表项随机缺失且界面完全卡死
  该功能在macOS（MacCatalyst）上运行正常。

相关XAML代码 #

<RefreshView x:DataType="local:ItemsViewModel" Command="{Binding LoadItemsCommand}" IsRefreshing="{Binding IsBusy, Mode=TwoWay}">
        <CollectionView x:Name="ItemsListView" ItemsSource="{Binding Items}" SelectionMode="None">
            <CollectionView.ItemTemplate>
                <DataTemplate>
                    <Grid Padding="10" x:DataType="model:Cryptocurrency">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="auto" />
                            <RowDefinition Height="auto" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="auto" />
                            <ColumnDefinition Width="auto" />
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="auto" />
                        </Grid.ColumnDefinitions>

                        <Image Source="{Binding image}" Grid.Row="0" Grid.Column="0" Grid.RowSpan="2" HeightRequest="50" WidthRequest="50" Margin="0,0,10,0" />

                        <Label Text="{Binding name}" Grid.Row="0" Grid.Column="1"
                            LineBreakMode="NoWrap" 
                            Style="{DynamicResource ListItemTextStyle}" 
                            FontSize="16" />
                        <Label Text="Price" Grid.Row="0" Grid.Column="2"
                            LineBreakMode="NoWrap"  HorizontalTextAlignment="End" Padding="0,0,20,0"
                            Style="{DynamicResource ListItemTextStyle}" 
                            FontSize="16" />
                        <Label Text="x to ATH" Grid.Row="0" Grid.Column="3"
                            LineBreakMode="NoWrap" 
                            Style="{DynamicResource ListItemTextStyle}" 
                            FontSize="16" />

                        <Label Text="{Binding market_cap_rank}" Grid.Row="1" Grid.Column="1"
                            LineBreakMode="NoWrap"
                            Style="{DynamicResource ListItemDetailTextStyle}"
                            FontSize="13" />
                        <Label Text="{Binding current_price, StringFormat='{}{0:C}'}" Grid.Row="1" Grid.Column="2"
                            LineBreakMode="NoWrap" HorizontalTextAlignment="End" Padding="0,0,20,0"
                            Style="{DynamicResource ListItemDetailTextStyle}"
                            FontSize="13" />
                        <Label Text="{Binding RatioToATH}" Grid.Row="1" Grid.Column="3"
                            LineBreakMode="NoWrap"
                            Style="{DynamicResource ListItemDetailTextStyle}"
                            FontSize="13" />
                        
                        <Grid.GestureRecognizers>
                            <TapGestureRecognizer NumberOfTapsRequired="1" Command="{Binding Source={RelativeSource AncestorType={x:Type local:ItemsViewModel}}, Path=ItemTapped}"      
                                CommandParameter="{Binding .}">
                            </TapGestureRecognizer>
                        </Grid.GestureRecognizers>
                    </Grid>
                </DataTemplate>
            </CollectionView.ItemTemplate>
        </CollectionView>
    </RefreshView>

界面截图 #

内容的提问来源于stack exchange，提问作者René Winter