Change UI arttribute

How to change font size and layout.

Attribute

name	detail
message_font_size	font size of text in a bubble
username_font_size	font size of username above a bubble
time_label_font_size	font size of time label next to a bubble
message_max_width	width of a bubble
date_separator_font_size	font size of date label between bubbles
option_button_enable	enable option button next to EditText in ChatView
text_selectable	selectable text for copying

Example

activity_messanger.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <com.github.bassaer.chatmessageview.views.ChatView
        android:id="@+id/chat_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:message_font_size="20sp"
        app:date_separator_font_size="16sp"
        app:time_label_font_size="16sp"
        app:username_font_size="16sp"
        app:message_max_width="200dp"
        app:option_button_enable="true"
        app:text_selectable="true"/>

</LinearLayout>