xml - Android: How to use tools with include layout -

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how use tools:

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

with <include>?

i have layout a use tools populate text fields test data. , have layout b use include copy layout in it. how ever when do not see test data of a.

how can see test data of a included in b?

*both layouts have xmlns:tools="http://schemas.android.com/tools, pushed layout tag.

check link, android tools attributes. should give idea how use tools attributes. @ tools:showin attribute. allows render layout_a in layout_b, in layout_b has <include layout="@layout/layout_a"/> somewhere in xml.

here's example:

layout_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"     >  <!-- 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"/>  <!-- layout code goes here -->  </relativelayout>

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