ActionBar items appear always in Overflow Menu

My app is using the Support Library for compatibility on versions as low as Android 2.2 so I have to define my own XML namespace and use that namespace as the attribute prefix

Solution was this, I was writing this android:showAsAction="ifRoom" but I should have app:showAsAction="ifRoom"

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
        android:id="@+id/action_refresh"
        android:icon="@drawable/ic_action_refresh"
        app:showAsAction="ifRoom"
        android:title="@string/action_refresh" />

    <item
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search"
        app:showAsAction="ifRoom"
        android:title="@string/action_search" />

    <item
        android:id="@+id/action_settings"
        android:title="@string/action_settings"
        app:showAsAction="never" />


</menu>

in menu xml file you need to add yourapp:showAsAction="always" like below.

<item
    android:id="@+id/Option"
    android:actionProviderClass="android.support.v7.widget.ShareActionProvider"
    android:icon="@drawable/ic_action_settings"
    android:title="Option"
    yourapp:showAsAction="always"/>

<item
    android:id="@+id/Save"
    android:actionProviderClass="android.support.v7.widget.ShareActionProvider"
    android:icon="@drawable/ic_action_save"
    android:title="Save"
    yourapp:showAsAction="always"/>

As per the document

If your app is using the Support Library for compatibility on versions as low as Android 2.1, the showAsAction attribute is not available from the android: namespace. Instead this attribute is provided by the Support Library and you must define your own XML namespace and use that namespace as the attribute prefix. (A custom XML namespace should be based on your app name, but it can be any name you want and is only accessible within the scope of the file in which you declare it.) For example:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
    <!-- Search, should appear as action button -->
    <item android:id="@+id/action_search"
          android:icon="@drawable/ic_action_search"
          android:title="@string/action_search"
          yourapp:showAsAction="ifRoom"  />
    ...
</menu>