相关疑难解决方法(0)

z-index的概念是什么？图为没有重叠. 如何设置z-index？前两个自定义选择框

<AbsoluteLayout Padding="10,10,10,10" VerticalOptions="FillAndExpand">

    <ui:BoxSelector x:Name="selectorExchangs"
                    AbsoluteLayout.LayoutBounds="0,0,0.5,0.3"
                    AbsoluteLayout.LayoutFlags="All"
                    BackgroundColor="Transparent"
                    CommandAfterChanged="{Binding ExchangesAfterChangedCommand}"
                    Items="{Binding ExchangesList}"
                    LabelPath="Name"
                    PanelColor="#f9f9f9"
                    SelectedItem="{Binding SelectedExchange}"
                    SelectorLabel="EXCHANGE" />

    <ui:BoxSelector AbsoluteLayout.LayoutBounds="1,0,0.5,0.3"
                    AbsoluteLayout.LayoutFlags="All"
                    BackgroundColor="Transparent"
                    CommandAfterChanged="{Binding TradingPairAfterChangedCommand}"
                    Items="{Binding AvailableTradinPairsList}"
                    LabelPath="PriceCurrencyName"
                    PanelColor="#f9f9f9"
                    SelectedItem="{Binding SelectedTraingPair}"
                    SelectorLabel="CURRENCY" />

其余的都是.图表,数据等

    <StackLayout AbsoluteLayout.LayoutBounds="1,1,1,0.9" AbsoluteLayout.LayoutFlags="All">...</StackLayout>

BoxSelector.xaml(内容视图),可重用的ContentView扩展

<ContentView.Resources>
    <ResourceDictionary x:Name="AppDictionary">
        <Color x:Key="BackgroundColor">#f9f9f9</Color>
        <Color x:Key="BorderColor">#e2e2e2</Color>
        <Style x:Key="InternalViewStyle" TargetType="ContentView">
            <Setter Property="BackgroundColor" Value="{StaticResource BackgroundColor}" />
            <Setter Property="VerticalOptions" Value="Fill" />
            <Setter Property="Padding" Value="5,5,5,5" />
        </Style>
        <Style x:Key="BorderStyle" TargetType="ContentView">
            <Setter Property="BackgroundColor" Value="{StaticResource BorderColor}" />
            <Setter Property="Padding" Value="1,1,1,1" />
        </Style>
    </ResourceDictionary>
</ContentView.Resources>

<StackLayout BindingContext="{x:Reference …

如何在 .NET MAUI 应用程序中将页面设置为具有线性背景？

我尝试定义LinearGradientBrushin Colors.xaml，然后将其分配为StaticResource- 见下文 - 但这似乎不起作用。

在 中Colors.xaml，我有这个：

<LinearGradientBrush x:Key="PageGradientBackground" EndPoint="1,1">
     <GradientStop
         Color="{StaticResource UIOffWhite}"
         Offset="0.1"/>
     <GradientStop
         Color="{StaticResource UILightGray}"
         Offset="0.6"/>
     <GradientStop
         Color="{StaticResource UIMidGray}"
         Offset="1.0"/>
</LinearGradientBrush>

然后像这样使用它：

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             BackgroundColor="{StaticResource PageGradientBackground}">
    <!-- ... -->
</ContentPage>

我也尝试过内联定义它，但这也不起作用。这实际上是不允许的：

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml">
    <ContentPage.BackgroundColor>
        <LinearGradientBrush>
        </LinearGradientBrush>
    </ContentPage.BackgroundColor>
    <!-- ... -->
</ContentPage>

知道如何为 a 提供渐变背景ContentPage吗？