Xamarin.forms中Xaml的可重用性用户控件 [英] reusability user controls of Xaml in xamarin.forms

问题描述

我正在尝试一种新方法，即XAML，以便在xamarin.forms中进行应用.目前，我面临重用具有图像和标签的堆栈布局的问题.我如何使用XAML在不同页面中重用布局.

I am trying a new approach i.e. XAML to make application in xamarin.forms. At this time i am facing an issue to reuse my stack layout which is having a image and label. How i can reuse my layout in different pages using XAML.

推荐答案

您实际上可以在单独的XAML文件中定义自定义组件，然后仅在需要的位置链接该组件.

You can actually define your custom component in a separate XAML file and then just link the component wherever you need it.

例如，带有图像的标签可以在专用的XAML文件中分组在一起:

For example a label with image can be grouped together in a dedicated XAML file:

<?xml version="1.0" encoding="utf-8" ?>
<StackLayout xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="UserControls.ImageWithTitle"
             VerticalOptions="Center" HorizontalOptions="Center" >
    <Label HorizontalOptions="Center"
           x:Name="TitleLabel" />
    <Image Source="noimage.png" />
</StackLayout>

在.cs文件中，我为TitleLabel定义了一个绑定

On the .cs file I've defined a binding for the TitleLabel

public string TitleName
{
     get { return TitleLabel.Text; }
     set { TitleLabel.Text = value; }
}

因此，当您将组件包括在另一个布局上时，可以直接(或通过绑定)分配标签值:

So when you include the component on another layout, you can assign the label value directly (or via a binding):

 <usercontrols:ImageWithTitle TitleName="Home"/>

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