Truncate TextView based on String length

I am trying to achieve a layout where two TextViews ie. tv_username and tv_date are to be aligned side by side. If the username is short the username and date should show completely and if the name is long, the username should truncate at the end and the date should show completely. Something like so :-

In any case both the TextViews shold have a max of 5dp spacing between them i.e the date should always be at the right of username with a margin of 5dp and not aligned to right in the parent. I have tried the below code, but it pushes the date Textview out of the screen with a longer username :-

<RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="@dimen/value_3"
            android:padding="@dimen/value_5"
            android:paddingEnd="@dimen/value_10"
            android:paddingStart="@dimen/value_10"
            android:paddingTop="@dimen/value_5">

                 <android.support.v7.widget.AppCompatTextView
                android:id="@+id/tv_username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:maxLines="@integer/value_1"
               android:text="Samantha George Jefferson and some more text"
                android:textColor="@color/colorPrimary"
                android:textSize="@dimen/size_fourteen"
                android:layout_alignParentStart="true"/>

            <android.support.v7.widget.AppCompatTextView
                android:id="@+id/tv_date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"                
                android:layout_marginLeft="@dimen/value_5"
                android:layout_alignParentRight="true"
                android:text="@string/friendly_date"
                android:textColor="@color/colorBlack_a38"
                android:textSize="@dimen/size_twelv"/>

    </RelativeLayout>

Any help would be appreciated.

UPDATE

I used ConstraintLayout but the result is the same.

<android.support.constraint.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                 <android.support.v7.widget.AppCompatTextView
                android:id="@+id/tv_username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:maxLines="@integer/value_1"
                android:text="Johnvfvjdfjgdkjhgjdgdjkghdjkghkjdhgdhgdgjkhjdfg"
                android:textColor="@color/colorPrimary"
                android:textSize="@dimen/size_fourteen"
                android:layout_alignParentStart="true"/>

            <android.support.v7.widget.AppCompatTextView
                android:id="@+id/tv_date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"                
                android:layout_marginLeft="@dimen/value_5"
                android:layout_alignParentRight="true"
                android:text="@string/friendly_date"
                android:textColor="@color/colorBlack_a38"
                app:layout_constraintLeft_toRightOf="@+id/tv_username"
                android:textSize="@dimen/size_twelv"/>

    </android.support.constraint.ConstraintLayout>

You can achieve this with a TableLayout

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:shrinkColumns="0">

    <TableRow>
        <android.support.v7.widget.AppCompatTextView
            android:id="@+id/tv_username"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:maxLines="1"
            android:text="@string/lorem"
            android:textColor="@color/colorPrimary"
            android:textSize="14sp" />

        <android.support.v7.widget.AppCompatTextView
            android:id="@+id/tv_date"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="5dp"
            android:text="1 hour ago"
            android:textColor="#5000"
            android:textSize="12sp" />
    </TableRow>
</TableLayout>