XAML 如何在.NET MAUI Flyout Shell应用程序中自定义标题?

ztyzrc3y  于 2023-03-10  发布在  .NET
关注(0)|答案(2)|浏览(226)

1.如何减少标题间距?
1.当我改变汉堡包图标,它的图标颜色出现只有白色.什么是错的?
1.我可以设置标题字体大小和字体系列吗?
谢谢你。
在android中有contentInsetLeft,contentInsetStart,contentInsetStartWithNavigation.但我不知道如何在.NET MAUI中使用

wpx232ag

wpx232ag1#

我有一个工作的解决方案在这里,你可以使用 shell 渲染器,但它觉得太烦人了,我个人
模板的基本内容页:https://github.com/FreakyAli/Maui.FreakyEffects/blob/dev/Maui.FreakyEffects/Samples/FreakyBaseContentPage.xaml
及其应用:
https://github.com/FreakyAli/Maui.FreakyEffects/blob/dev/Maui.FreakyEffects/Samples/SkeletonEffect/SkeletonEffectView.xaml
对于直接想要代码的人:
创建模板:

<ContentPage.Resources>
    <ResourceDictionary>
        <ControlTemplate x:Key="HeaderControlTemplate">
            <AbsoluteLayout>
                <Grid
                    BackgroundColor="{TemplateBinding Parent.NavBarBackgroundColor}"
                    AbsoluteLayout.LayoutBounds="0,0,1,1"
                    AbsoluteLayout.LayoutFlags="All"
                    RowSpacing="0"
                    ColumnSpacing="0">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="25*" />
                        <ColumnDefinition Width="50*" />
                        <ColumnDefinition Width="25*" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="7*" />
                        <RowDefinition Height="93*" />
                    </Grid.RowDefinitions>
                    <Border
                        Grid.Row="0"
                        Grid.Column="0"
                        Margin="15,0,0,0"
                        StrokeThickness="0"
                        IsVisible="{TemplateBinding Parent.IsBackButtonVisible}"
                        BackgroundColor="{StaticResource Tertiary}"
                        VerticalOptions="Center"
                        HorizontalOptions="Start"
                        HeightRequest="30"
                        WidthRequest="30">
                        <Border.GestureRecognizers>
                            <TapGestureRecognizer Command="{TemplateBinding Parent.BackButtonCommand}"/>
                        </Border.GestureRecognizers>
                        <Border.StrokeShape>
                            <RoundRectangle CornerRadius="5" />
                        </Border.StrokeShape>
                        <controls:FreakySvgImageView
                        InputTransparent="True"
                        ResourceId="{x:Static constants:Constants.BackButton}"
                        SvgAssembly="{x:Static constants:Constants.SvgAssembly}"
                        ImageColor="White"
                        SvgMode="AspectFit" />
                    </Border>
                    <Label
                        Grid.Row="0"
                        Grid.Column="1"
                        Margin="0,0,0,0"
                        FontSize="Medium"
                        TextColor="{TemplateBinding Parent.HeaderTextColor}"
                        HorizontalOptions="CenterAndExpand"
                        Style="{DynamicResource HeaderLabelStyle}"
                        Text="{TemplateBinding Parent.HeaderText}"
                        VerticalOptions="Center" />
                    <Border
                        Grid.Row="0"
                        Grid.Column="2"
                        Margin="0,0,15,0"
                        StrokeThickness="0"
                        IsVisible="{TemplateBinding Parent.IsContextVisible}"
                        BackgroundColor="{StaticResource Tertiary}"
                        VerticalOptions="Center"
                        HorizontalOptions="End"
                        HeightRequest="30"
                        WidthRequest="30">
                        <Border.StrokeShape>
                            <RoundRectangle CornerRadius="5" />
                        </Border.StrokeShape>
                        <controls:FreakySvgImageView
                        ImageColor="White"
                        ResourceId="{x:Static constants:Constants.MeatballMenu}"
                        SvgAssembly="{x:Static constants:Constants.SvgAssembly}"
                        SvgMode="AspectFit">
                        </controls:FreakySvgImageView>
                    </Border>
                    <ContentPresenter
                        Grid.Row="1"
                        IsClippedToBounds="True"
                        BackgroundColor="{StaticResource Primary}"
                        Grid.ColumnSpan="3"
                        VerticalOptions="FillAndExpand" />
                </Grid>
            </AbsoluteLayout>
        </ControlTemplate>
    </ResourceDictionary>
</ContentPage.Resources>

在要显示的内容页中(应从基本内容页继承):

<ContentPage.Content>
    <ContentView x:Name="template" ControlTemplate="{StaticResource HeaderControlTemplate}">
    // Your design here
    </ContentView>
 </ContentPage.Content>
nafvub8i

nafvub8i2#

自定义标题视图

如果您使用默认的MAUI应用程序模板,则您使用的是Shell,它允许您设置自定义TitleView:

<?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:views="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"
             x:Class="MyApp.Views.MyPage"
             Title="MyPage">

  <Shell.TitleView>
    <Grid>
      <Label 
        Text="Hello"
        HorizontalOptions="Start"
        VerticalOptions="Center"
        BackgroundColor="Orange"
        TextColor="White"
        FontSize="Title" />
    </Grid>
  </Shell.TitleView>

  <!-- .. -->
</ContentPage>

这允许您完全自定义TitleView,向其添加按钮,更改字体、大小和颜色等。

标题间距/内容插入起始带导航

如果没有mapper/handler或自定义渲染器,则无法更改“标题”和“菜单”图标之间的间距。
您可以将以下内容附加到代码中某个位置的ToolbarMap器,例如在 MauiProgram.cs 中:

Microsoft.Maui.Handlers.ToolbarHandler.Mapper.AppendToMapping("CustomNavigationView", (handler, view) =>
    {
#if ANDROID
        handler.PlatformView.ContentInsetStartWithNavigation = 0;
#endif
    });

变更前:

变更后:

汉堡菜单图标颜色

也可以更改汉堡菜单图标的颜色,但这已经在其他问题中涉及:
How to get the default shell flyout icon to react when android dark theme is switched on/off
在毛伊岛使用贝壳的时候,你是如何改变汉堡包的颜色的
Change Hamburger Menu Icon in .NET MAUI app

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