<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" >
<item
    android:id="@+id/menu_filter"
    android:title="Filter"
    app:showAsAction="always"/>
</menu>

<style name="style1_actionBar" parent="@style/Widget.AppCompat.Light.ActionBar">
    <item name="android:background">@color/blue_dark</item>
    <item name="android:textColor">@color/white</item>
    <item name="actionMenuTextAppearance">@color/white</item>
    <item name="background">@color/blue_dark</item>
</style>

new MenuInflater(getApplication()).inflate(R.menu.activity_wentry_editor, menu);

MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.activity_wentry_editor, menu);

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

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