i'm using `Linearlayout` like with android `Toolbar` and i set custom shadow for that, unfortunately after opening `DrawerLayout` i have tiny space between custom toolbar and drawer layout and i can not fix this problem

**CURRENT PROBLEM:**

[![enter image description here](https://i.stack.imgur.com/CvVoA.png)](https://i.stack.imgur.com/CvVoA.png)

**CORRECT VIEW:**

[![enter image description here](https://i.stack.imgur.com/5JXgy.png)](https://i.stack.imgur.com/5JXgy.png)

My custom LinearLayout as an Toolbar with `application_toolbar` name:

```
    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="fill_parent"
        android:layout_height="52dp"
        android:background="#eaeaea"
        android:gravity="center">

        <TextView
            android:id="@+id/textView2"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1" />

        <pishguy.ir.asrebidree.Widgets.TextViewStyle
            android:layout_width="100dp"
            android:layout_height="fill_parent"
            app:fonttype="mjbeirut"
            android:text="@string/app_name"
            android:textSize="20sp"
            android:textColor="#737373"
            android:gravity="right"
            android:layout_marginRight="5dp"
            android:paddingTop="7dp" />
    </LinearLayout>

```

Activity main with drawerLayout and custom toolbar:

```
<LinearLayout 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"
    android:id="@+id/root"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <!-- CUSTOM TOOLBAR -->
    <include
        android:id="@+id/toolbar"
        layout="@layout/application_toolbar" />

    <!-- TOOLBAR SHADOW -->
    <View
        android:layout_width="fill_parent"
        android:layout_height="5dp"
        android:background="@drawable/toolbar_dropshadow" />

    <android.support.v4.widget.DrawerLayout
        android:id="@+id/drawer_layout"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv_items"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="2dp">

        </android.support.v7.widget.RecyclerView>
        ...
    </android.support.v4.widget.DrawerLayout>

</LinearLayout>

```

Toolbar shadow:

```
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <gradient
        android:startColor="@android:color/transparent"
        android:endColor="#50949494"
        android:angle="90"/>
</shape>

```