Question

So here’s what I’m trying to do.

<RelativeLayout
    android:id="@+id/label_block"
    android:layout_width="308dp"
    android:layout_height="154dp"
    android:layout_margin="?attr/primaryMargin" <!----- THIS HERE

I’d like to be able to reference my own attributes just like how you can reference android theme attributes like android:textAppearance=”?android:attr/textAppearanceLarge”
The goal is to have a centralized place for all my paddings and other common values to reference them in xml layouts.

Is there anyway I can do this? I can’t figure it out.

Answer 1

well you can define your Dimensions like this way:

in path /res/values/dimensions.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <dimen name="my_layout_margin">8dp</dimen>
    <dimen name="my_other_value">4dp</dimen>    
</resources> 

and you will reference it like this way:

<RelativeLayout  android:id="@+id/label_block"
    android:layout_width="308dp"
    android:layout_height="154dp"
    android:layout_margin="@dimen/my_layout_margin"/>