How to combine style into a theme?

Question

I have created a style:

 <style name="Button_Display">
    <item name="android:minHeight">48dip</item>
    <item name="android:minWidth">88dip</item>
    <item name="android:focusable">true</item>
    <item name="android:clickable">true</item>
    <item name="android:gravity">center_vertical|center_horizontal</item>
</style>

I want that all the Button's in my application will look like declared above. My question is how can i combine the Button_Display style inside a theme so all the Buttons in my app will have this look and feel?

Answer 1

https://developer.android.com/guide/topics/ui/look-and-feel/themes

In styles.xml create your own button style. Choose whatever parent style matches your need the best. Then overwrite all the necessary parameters.

<style name="myButtonStyle" parent="@style/Widget.AppCompat.Button">
    <item name="android:minHeight">48dip</item>
    <item name="android:minWidth">88dip</item>
     ...
</style>

Then set this as default button style in your theme.

<style name="AppTheme" parent="Theme.AppCompat....">
      <item name="buttonStyle">@style/myButtonStyle</item>
       ...
</style>

Now all Buttons will have the parameters you specified in your style.