我想创建一个页面,其中有一张图片,基本上是图片顶部页面上的其他内容。
与此类似的东西
XAML代码如:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="Project.Page">
<ScrollView>
<AbsoluteLayout>
<Image Source="{Binding ContentImage}}" Aspect="AspectFill" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="0,0,1,1"/>
<Label Text="{Binding label}" FontSize="15" AbsoluteLayout.LayoutFlags="PositionProportional" AbsoluteLayout.LayoutBounds="0,1,-1,-1" />
</AbsoluteLayout>
</ScrollView>
到目前为止,我有这个。但是这只有右下方的标签方式,我似乎无法使列表或按钮正常工作。我想也许只是将图像作为背景,但是按下按钮或其他东西会改变图像,我不完全确定你是否可以用背景图像来做。
Xamarin.Forms是否可以这样?
抱歉,如果我的英语很差!这是我的第二语言!
提前致谢!
编辑:我能够将图像用作背景并通过单击按钮进行更改。现在我只需要了解如何实际定位ListView。
答案 0 :(得分:12)
我从演示中移动了一些项目,这是只是使用AbsoluteLayout和Grid
处理它的一种方法<AbsoluteLayout x:Name="ViewLayout">
<Image Source="coffee.png" Aspect="AspectFill" AbsoluteLayout.LayoutBounds="1,1,1,1" AbsoluteLayout.LayoutFlags="All" />
<AbsoluteLayout x:Name="ViewControls" AbsoluteLayout.LayoutBounds="1,1,1,.50" AbsoluteLayout.LayoutFlags="All" BackgroundColor="#66000000" Margin="10,10,10,10">
<StackLayout Orientation="Vertical" Margin="20,20,20,20" BackgroundColor="Transparent" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="1,1,1,1">
<Grid Margin="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Label Text="Salted Caramel Mocha Frappuccino" TextColor="White" HorizontalOptions="CenterAndExpand" VerticalTextAlignment="Center" Grid.Column="0" Grid.ColumnSpan="3" Grid.RowSpan="2" />
<Button Text="Extra Shot" BackgroundColor="#77000000" BorderRadius="4" BorderColor="White" BorderWidth="2" TextColor="White" Grid.Row="0" Grid.Column="3" />
<Button Text="Whipped Cream" BackgroundColor="#77000000" BorderRadius="4" BorderColor="White" BorderWidth="2" TextColor="White" Grid.Row="1" Grid.Column="3" />
</Grid>
<Grid Margin="1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Button Text="Tall (12oz)" BackgroundColor="#77000000" BorderRadius="4" BorderColor="White" BorderWidth="2" TextColor="White" HorizontalOptions="FillAndExpand" Grid.Column="0" />
<Button Text="Grande (16oz)" BackgroundColor="#77000000" BorderRadius="4" BorderColor="White" BorderWidth="2" TextColor="White" HorizontalOptions="FillAndExpand" Grid.Column="1" />
<Button Text="Venti (20oz)" BackgroundColor="#77000000" BorderRadius="4" BorderColor="White" BorderWidth="2" TextColor="White" HorizontalOptions="FillAndExpand" Grid.Column="2" />
</Grid>
</StackLayout>
</AbsoluteLayout>
</AbsoluteLayout>