java - Android Centering Item in RecyclerView

Question

Im a newbie in android. Im not sure why I cant center my item in RecyclerView.

What I want is like below image :-

What android render is like below image :-

Is there a way to push items in RecyclerView to center? So it will look like this :-

I also provide the layout files as below :-

recycler_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content" android:layout_height="wrap_content"
    android:id="@+id/calendar_itemContainer">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="April"
        android:id="@+id/calendar_txtMonth"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:textColor="#ff58636d"
        android:textSize="16sp"
        android:gravity="center|center_vertical|center_horizontal"
        android:paddingTop="8dp"
        android:paddingLeft="12dp"
        android:paddingRight="12dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="21"
        android:id="@+id/calendar_txtDay"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/calendar_txtMonth"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:textColor="#ff58636d"
        android:textSize="40sp"
        android:layout_marginTop="-10dp"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:paddingBottom="5dp"
        android:gravity="center|center_vertical|center_horizontal" />
</RelativeLayout>

fragment_calendar.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/calendar_recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scrollbars="horizontal"
        android:background="#ff2c3e50" />
</RelativeLayout>

and the java codes :-

CalendarAdapter mAdapter = new CalendarAdapter(mDataset);
mLayoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false);
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter.setCalendarCallbacks(this);
mRecyclerView.setAdapter(mAdapter);
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
selectItem(mCurrentSelectedPosition);

Answer 1

set recyclerview to:

android:layout_width="wrap_content"
android:layout_gravity="center_horizontal"

fixed it for me