Elevate an Image in Pre-lollipop devices (<21) - android-layout

Question

Issue :Give elevation for an image in my layout.
Layout Structure: Constraint Layout-> Card View
The image to be elevated in half on constraint layout and half on card view.
I could not use the shadow approach since my image is not completely on a single view.
Is there a way this is possible on pre-lollipop devices?
Layout file:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#246389"
android:orientation="vertical">
<android.support.v7.widget.AppCompatImageView
android:id="#+id/imageView3"
android:layout_width="264dp"
android:layout_height="152dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:elevation="12dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0"
app:srcCompat="#drawable/login_car" />
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="270dp"
android:layout_height="450dp"
android:layout_margin="20dp"
app:cardBackgroundColor="#00AFEF"
app:cardUseCompatPadding="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintLeft_toRightOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="parent"
app:layout_constraintVertical_bias="0.5">
</android.support.v7.widget.CardView>
</android.support.constraint.ConstraintLayout>

Answer 1

I imitated a CardView with general android layouts and custom background. Then in parent FrameLayout it is easy to add one element above another
dialog_layout
<layout
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">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/base_transparent">
<FrameLayout
android:layout_width="300dp"
android:layout_height="210dp"
android:background="#drawable/bg_dialog">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:background="#drawable/bg_dialog_upper_radius"
android:orientation="vertical">
<TextView
style="#style/AppTheme.PaymentContentTextAppearanceName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="16dp"
android:text="#string/payment_view_main_account" />
<TextView
android:id="#+id/tv_total_payment"
style="#style/AppTheme.PaymentView.Summ"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="16dp"
tools:text="80000" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="10dp"
android:orientation="horizontal">
<com.bifit.mobile.lite.std.ui.customview.CompatTextView
android:id="#+id/send_payment_email"
style="#style/AppTheme.BottomButton"
android:text="#string/payment_view_send_email"
android:textColor="#color/base_blue"
app:drawableTopCompat="#drawable/ic_message_send" />
<com.bifit.mobile.lite.std.ui.customview.CompatTextView
android:id="#+id/save_pdf_payment"
style="#style/AppTheme.BottomButton"
android:text="#string/payment_view_save_pdf"
android:textColor="#color/base_blue"
app:drawableTopCompat="#drawable/ic_save_pdf" />
</LinearLayout>
</FrameLayout>
<ImageButton
android:id="#+id/ib_okay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="170dp"
android:background="#drawable/bg_blue_circle"
android:clickable="true"
android:focusable="true"
app:srcCompat="#drawable/ic_check" />
</FrameLayout>
</layout>
bg_dialog_upper_radius
<layer-list
xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#color/base_gray_light_second"/>
<corners
android:topLeftRadius="10dp"
android:topRightRadius="10dp"
/>
</shape>
</item>
</layer-list>
And the result