Android:如何使用包含布局的工具 [英] Android: How to use tools with include layout

问题描述

我如何使用工具:

xmlns:tools="http://schemas.android.com/tools"

使用<include>吗?

我有一个布局A，使用工具可以用测试数据填充所有文本字段.我有布局B，该布局使用include将布局A复制到其中.但是我什么时候看不到A的测试数据.

I have a layout A that I use tools to populate all the text fields with test data. And I have layout B that use include to copy layout A in to it. How ever when I do that I do not see the test data of A.

如何查看B中包含的A的测试数据?

How can I see the test data of A included in B?

*两个布局都具有xmlns:tools="http://schemas.android.com/tools，我什至将其推送到了布局标签.

*Both layouts have xmlns:tools="http://schemas.android.com/tools, I even pushed it to layout tag.

推荐答案

选中此链接， Android工具属性.它应该使您了解如何使用工具属性. 具体看一下tools:showIn属性.它基本上允许您在layout_B中渲染layout_A，其中layout_B在xml中的某处具有<include layout="@layout/layout_A"/>.

Check this link, Android tools attributes. It should give you an idea as to how to use the tools attributes. Specifically look at the tools:showIn attribute. It basically allows you to render layout_A in layout_B, in which layout_B has <include layout="@layout/layout_A"/> somewhere in the xml.

这是一个例子:

布局_A

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:showIn="@layout/layout_B"
    >

<!-- Your layout code goes here -->

</RelativeLayout>

layout_B

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

<include layout="@layout/layout_A"/>

<!-- Your layout code goes here -->

</RelativeLayout>

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