How to remove the border for Share button in Action Bar?

Question

Have a look at the picture

This is how Share button looks like in action b

Answer 1

You need to use custom background.

This might help: https://developer.android.com/training/basics/actionbar/styling.html

Answer 2

Here is a more complet message :

In your style, add

<style name="_MidipileTheme" parent="android:Theme.Holo.Light">
    <item name="android:actionBarItemBackground">@android:color/transparent</item>
</style>

drawable/action_background

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/background_actionBar"/>
</shape>

@color/background_actionBar is your custom background. For me, it's the same background color as actionBar background drawable.