Add items to bottom of Recycler View

user8618899 :

Code of the illustration:

mLinearLayoutManager = new LinearLayoutManager(this);
mLinearLayoutManager.setReverseLayout(true);
mLinearLayoutManager.setStackFromEnd(true);
mMessageRecyclerView.setLayoutManager(mLinearLayoutManager);

See illustration here

How can I add new items (in my case, messages) to the bottom of Recycler View and still keep the "gravity" of the view to the top?

So, what works now is the following:

The gravity of the view is at the top. That's good! ✓

What doesn't work:

New messages are added to the top of the view. That's bad × I want them to be added at the bottom of the view (after the previous message) like so: See here

Niraj Niroula :

setStackFromEnd=true and setReverseLayout=true

setStackFromEnd will set the view to show the last element, the layout direction will remain the same whereas setReverseLayout will change the order of the elements added by the Adapter.
Try removing these two lines or setting them false

layoutManager.setReverseLayout(true);
layoutManager.setStackFromEnd(true);

Try using this to move your RecyclerView and EditText up when keyboard appears

<activity name="YourActivity"
android:windowSoftInputMode="stateHidden|adjustResize">
//stateHidden--->keyboard is hidden when you first open the activity and adjustResize---> this will adjust the layout resize option.
...
</activity>

in AndroidManifest.xml.

To hook the RecyclerView at top

    <android.support.v7.widget.RecyclerView
    android:id="@+id/messageRecyclerViewRep"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_below="@+id/linearLayout3"
    android:layout_marginLeft="36dp"
    android:scrollbars="vertical" />

To put the recyclerView at bottom first and push it up as the keyboard pops up.

 <LinearLayout
    android:id="@+id/recyclerContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/linearLayout3"
    android:layout_above="@+id/linearLayout"
    android:gravity="bottom">
    <android.support.v7.widget.RecyclerView
        android:id="@+id/messageRecyclerViewRep"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="36dp"
        android:scrollbars="vertical" />
</LinearLayout>

To scroll the recyclerView to bottom when keyboard pops up i.e. when the recycler view's layout is changed ( You can do the same thing on Edit Text active or focused or clicked or something like that. I've done it on recycler view's layout change. )

   recyclerView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
            @Override
            public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                if (bottom < oldBottom) {
                    recyclerView.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            recyclerView.smoothScrollToPosition(mAdapter.getItemCount());
                        }
                    }, 100);
                }
            }
        });