Configure RecyclerView to work as a chat

Question

To enable chat-style scrolling in a List View, we can use the following properties:

Answer 1

add these statements;

<android.support.v7.widget.RecyclerView
                    android:id="@+id/chat_list_view"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:drawSelectorOnTop="false"
                    android:listSelector="@android:color/transparent"
                    android:paddingLeft="4dp"
                    android:paddingRight="4dp"
                    android:scrollbarStyle="outsideOverlay"
                    android:transcriptMode="normal" />

and add into layout manager

layoutManager.setStackFromEnd(true);

Answer 2

RecyclerView has a stackFromEnd attribute.

<android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/recyclerView" 
        android.support.v7.recyclerview:stackFromEnd ="true"/>

Or you can do it through code

mLayoutManager = new LinearLayoutManager(getActivity());
mLayoutManager.setReverseLayout(true);
mLayoutManager.setStackFromEnd(true);

Answer 3

add this two line to xml

app:stackFromEnd="true"
app:reverseLayout="true"