如何列出<item name="app:fabSize"> [价值]</item> 在styles.xml 中？

Question

I tried to include the app:fabSize in styles.xml but android studio threw an error

Is there any way to include the app:fabSize and other app: attributes in styles.xml?

Here is the code for the style tag

Answer 1

When adding Compat attributes in layout.xml one should use previously defined namespace (it doesn't have to be app actually, but should be defined in xml via xmlns: - for example having hello as a namespace is also possible. Anyway app is some kind of a standard).

<android.support.design.widget.FloatingActionButton
    xmlns:hello="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    hello:fabSize="mini"/>

But in styles.xml to use Compat attributes one shouldn't put anything, but attribute name:

<style name="StyleName">
    <item name="fabSize">mini</item>
</style>