ProjectLaogai/app/src/main/res/layout/lesson_cardview.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardBackgroundColor="@android:color/background_light"
        app:cardElevation="5dp"
        app:cardUseCompatPadding="true" app:cardPreventCornerOverlap="false" app:contentPadding="5dp">

    <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent" android:id="@+id/linLayout_Lesson">
        <TextView
                android:id="@+id/txtView_Time"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="end"
                android:text="@string/a_time"/>
    </LinearLayout>

</androidx.cardview.widget.CardView>