<androidx.recyclerview.widget.RecyclerView android:id="@+id/recyclerView" android:layout_width="match_parent" android:layout_height="match_parent" /> RecyclerView recyclerView = findViewById(R.id.recyclerView); <androidx.viewpager.widget.ViewPager android:id="@+id/viewPager" android:layout_width="match_parent" android:layout_height="match_parent" /> ViewPager viewPager = findViewById(R.id.viewPager); <androidx.cardview.widget.CardView android:id="@+id/cardView" android:layout_width="match_parent" android:layout_height="wrap_content" app:cardCornerRadius="8dp" app:cardElevation="4dp"> </androidx.cardview.widget.CardView> implementation 'androidx.recyclerview:recyclerview:1.0.0'