Android，重用不是布局，而是通过 XML 重用视图

Question

I have a button I use a lot in one of my layouts. Or rather, I have like ten buttons all with the same text color, background color, text size, width, and height. I don't want to define all of these parameters for each button. So I want to be able to write something like...

<include view="@layout/standard_button"
    android:id="@+id/button-id"
    android:text="button-specific-text"/>

But of course, there is no include view="" , there is only include layout, and include layout the xml file as a Layout, not a View, so setting the text is not possible and when I findViewById() in my activity, it would refer to a Layout and not a View.

Is there something like <include view="... ?

Answer 1

You can create a layout with your customized style button that you want to use multiple times, and wrap it in a <merge> tag like below sample.

And then you can reuse it over and over again using the include tag in any other layout.

<merge xmlns:android="http://schemas.android.com/apk/res/android">

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</merge>

Usage within any other layout, assuming the top layout named as my_button.xml

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