menu has no shadow {Solved}

[GilianMarques]

it happens of you change popup's background on @Styles like that:

<style name="DroppyTheme" parent="Droppy.DroppyPopup"> <item name="android:background">@color/someColor</item> </style>

to solve this i created a shape and seted it as background using the theme above like :

<item name="android:background">@drawable/popup_background</item>

Here is the code :
hope it can be helpfull.

popup_background.xml

`

<item>
    <shape>
        <padding android:top="1dp" android:right="1dp" android:bottom="2dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="8dp" />
    </shape>
</item>

<item>
    <shape>
        <padding android:top="1dp" android:right="1dp" android:bottom="2dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="8dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="1dp" android:right="1dp" android:bottom="2dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="8dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1.5dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="8dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1.5dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="8dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1.5dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="7dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="6dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="5dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="4dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="3dp" />
    </shape>
</item>
<item>
    <shape>
        <padding android:top="0.4dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
        <solid android:color="#05000000" />
        <corners android:radius="3dp" />
    </shape>
</item>

<!-- Background -->
<item>
    <shape>
        <solid android:color="@color/colorAccent" />
        <corners android:radius="3dp" />
    </shape>
</item>

`