android – Change ActionBar menu icon

Question:

I want to change the ActionBar menu icon, those 3 dots that have "Settings" as the default option. I've tried using Style by creating a custom theme and putting the new icon there but it didn't work.

<style name="CustomActivityTheme" parent="AppTheme">
    <item name="android:homeAsUpIndicator">@drawable/botaohome</item>
    <item name="android:actionButtonStyle">@drawable/actionbuttonwhite</item>
</style>

The homeAsUpIndicator works perfectly, but the Action Button Style did not. Any tips?

Answer:

You can use a menu inside an Item, then in the item you define an icon

<item
        android:icon="@drawable/ic_opcoes"
        app:showAsAction="always"
        android:title="@string/comecar">
        <menu>

             //aqui coloca os itens que você quer dentro no menu

        </menu>
    </item>