Nested Recycler Views, Vertically Scrolled ( Parent using Pagination )-CodePudding

<androidx.recyclerview.widget.RecyclerView
                android:id="@ id/rv_sales_report"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_marginTop="20dp"
                android:clipToPadding="false"
                android:paddingHorizontal="10dp"
                android:paddingBottom="120dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/mtv_sales_report_date"
                tools:listitem="@layout/item_reportings_new" />

  <androidx.recyclerview.widget.RecyclerView
                android:id="@ id/rv_dynamic_inner_reporting"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="10dp"
                android:orientation="vertical"
                android:paddingBottom="10dp"
                app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
                app:layout_constraintTop_toBottomOf="@id/mtv_date_dynamic"
                tools:listitem="@layout/item_inner_reporting" />

The inner recycler view is not scrolling I have tried many solutions, non helped me, how can I make the inner recycler view scroll vertically, they both scroll vertically.

CodePudding user response：

android:layout_height="0dp" You shouldn't use this without setting either the layout weight or without constraining both the top and bottom of the view because without constraints, it might just act as wrap_content basically extending beyond the screen.

Also, for the inner view, if the orientation is vertical, then height shouldn't be wrap_content maybe changing that would help.

Also, just a tip, having both recycler be vertical is a bad idea because how would android (or the user) know which view you are scrolling on if they are together.

CodePudding user response：

Issue is solved by showing only four items in the inner Recycler View, and enabling nestedScrollView = true, also handling OnTouch Events for the parent Recycler View.