Expandablelistview not expanding inside the DraggedDrawer

[rranjithkumar100]

ExpandableListview not expanding automatically it expands only when I manual scrolling.

My stackoverflow question,
http://stackoverflow.com/questions/35355555/android-expandable-listview-not-expanding-automatically

My xml layout code,

 `<com.kedzie.drawer.DraggedDrawer
    android:id="@+id/drawer_layout"
    android:layout_width="300dp"
    android:layout_height="match_parent"
    android:focusable="false"

    kedzie:handleId="@+id/left_big_handle"
    kedzie:contentId="@+id/left_big_content"
    kedzie:type="left"

    kedzie:shadow="@drawable/shadow_grad_left">



         <LinearLayout
            android:id="@+id/left_big_content"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
           android:orientation="vertical"
             android:focusable="false"

             android:background="@color/dark_grey"
            >
             <TextView
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:text="Quick Menu"
                 android:textColor="@color/white"
                 android:textStyle="bold"
                 android:padding="10dp"
                 android:textSize="20sp"

                 android:id="@+id/tv_menu_title"/>


             <!-- The navigation menu -->

        <ExpandableListView
            android:id="@+id/lvExp"
            android:layout_width="match_parent"
            android:dividerHeight="1dp"
            android:smoothScrollbar="true"
            android:transcriptMode="alwaysScroll"
            android:listSelector="@drawable/category_listselector"
            android:divider="@color/black"
            android:layout_height="match_parent"
            android:layout_gravity="left"
            android:background="#E6E6E6" >

        </ExpandableListView>
    </LinearLayout>

    <ImageView android:id="@id/left_big_handle"
        android:background="@drawable/drag_icon"
        android:layout_gravity="center"
        android:layout_centerInParent="true"
        android:layout_marginTop="12dp"
        android:layout_width="40dp"
        android:layout_height="100dp"/>
</com.kedzie.drawer.DraggedDrawer>`