Android removes the default shadow of CardView. CardView usually has a shadow effect by default. If you don’t want the shadow effect, just set the following properties to 0:

app:cardElevation="0dp"
app:cardMaxElevation="0dp"
Copy the code

The complete use is as follows:

<androidx.cardview.widget.CardView 
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp"
    app:cardBackgroundColor="#ffffff"
    app:cardCornerRadius="10dp"
    app:cardElevation="0dp"
    app:cardMaxElevation="0dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        .......
    </LinearLayout>
</androidx.cardview.widget.CardView>
Copy the code