How to show menu popup exact below actionbar?

Question

I am working on popup-menu in actionbar. But I am stuck to display exact below of actionbar(cut-to-cut).I am putting two snapshot.

My issue screen shot:

I want exact popup menu below of actionbar as below screenshot

Correction screenshot:

My code snippet:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
<item android:id="@+id/action_filter"
    android:icon="@drawable/ic_filter_white_18dp"
    android:title="@string/action_filter"
    app:showAsAction="ifRoom" />
<item android:id="@+id/action_label"
    android:icon="@drawable/ic_add_circle_outline_white_18dp"
    android:title="@string/action_label"
    app:showAsAction="ifRoom" />
<item android:id="@+id/action_settings"
    android:title="@string/action_settings"
    app:showAsAction="never" />

Answer 1

When working with AppCompat Theme, below code help you.Either Kitkat or Lollipop

Make your style.xml like below

<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/black</item>
    <item name="android:background">@android:color/transparent</item>
    <item name="actionOverflowMenuStyle">@style/OverflowMenu</item>
</style>


<style name="OverflowMenu" parent="Widget.AppCompat.PopupMenu.Overflow">
    <item name="android:windowDisablePreview">true</item>
    <item name="overlapAnchor">false</item>
    <item name="android:dropDownVerticalOffset">5.0dp</item>
    <!--<item name="android:popupBackground">#FFF</item>-->
</style>