I'm trying to utilize elevation attributes to display drop shadows. As you can see from the images, it displays fine in Android Studio but when run on the device, one of the drop shadows disappears. Why would one show but not the other?
Image from Android Studio
Screenshot from Marshmallow device
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white_80"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="@+id/booking_details_top_block"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:elevation="4dp"
>
<LinearLayout
android:id="@+id/image_block"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_horizontal"
>
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_margin="8dp"
android:background="@color/black"
/>
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_margin="8dp"
android:background="@color/black"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_margin="16dp"
android:padding="16dp"
android:background="@drawable/booking_detail_date_background"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
tools:text ="Tuesday, September 1"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
tools:text ="4:00 PM - 6:00 PM"
/>
</LinearLayout>
<TextView
android:id="@+id/bookings_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:paddingRight="16dp"
android:paddingLeft="16dp"
android:gravity="center_horizontal"
android:layout_gravity="center_horizontal"
android:background="@drawable/status_background"
android:textColor="@color/white"
tools:text="CONFIRMED"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_marginTop="8dp"
android:padding="8dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:text ="@string/booking_details_brig"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
tools:text ="Lorena M."
/>
</LinearLayout>
<RatingBar
android:id="@+id/rate_bar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:stepSize="1"
style="@style/Widget.CustomRatingBar"
android:layout_gravity="center_horizontal"
android:layout_marginTop="8dp"
android:layout_marginBottom="24dp"
android:layout_marginRight="@dimen/dialog_horizontal_margin"
android:layout_marginLeft="@dimen/dialog_horizontal_margin"
/>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
/>
</LinearLayout>
<include layout="@layout/widget_booking_details" />
</LinearLayout>
widget_booking_details
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:elevation="2dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="8dp"
android:paddingBottom="8dp"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_address"/>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical"
android:layout_gravity="center_vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="22 Phitsanulok Rd, apt. 3"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="Khwaeng Dusit, Dusit"/>
</LinearLayout>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/white"
android:layout_marginStart="@dimen/booking_details_margin"
android:layout_marginEnd="@dimen/booking_details_margin"
/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_services"/>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical"
android:layout_gravity="center_vertical"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="Waves after waves,"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="Evening glam"/>
</LinearLayout>
</LinearLayout>
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="@dimen/booking_details_margin"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@drawable/up_arrow"
android:background="@color/cream"
/>
</RelativeLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/white"
android:layout_marginStart="@dimen/booking_details_margin"
android:layout_marginEnd="@dimen/booking_details_margin"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_cost"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_vertical"
tools:text="24,600B"/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/white"
android:layout_marginStart="@dimen/booking_details_margin"
android:layout_marginEnd="@dimen/booking_details_margin"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_payment"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_vertical"
tools:text="Mastercard ending 1234"/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/white"
android:layout_marginStart="@dimen/booking_details_margin"
android:layout_marginEnd="@dimen/booking_details_margin"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_booking_ref"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_vertical"
tools:text="1639460503"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="@dimen/booking_details_padding"
android:paddingBottom="@dimen/booking_details_padding"
android:background="@color/white"
>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="@dimen/booking_details_margin"
android:paddingTop="4dp"
android:paddingBottom="4dp"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_booking_help"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_vertical"
android:text="@string/booking_details_booking_help_email"/>
<!--TODO make email an actual link-->
</LinearLayout>
