widget_chatmessage_daychange.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:background="?attr/backgroundMenuItem"
  android:orientation="vertical"
  android:textAppearance="?android:attr/textAppearanceListItemSmall">

  <View
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="?colorDivider" />

  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:paddingBottom="@dimen/message_vertical"
    android:paddingEnd="@dimen/message_horizontal"
    android:paddingLeft="@dimen/message_horizontal"
    android:paddingRight="@dimen/message_horizontal"
    android:paddingStart="@dimen/message_horizontal"
    android:paddingTop="@dimen/message_vertical">

    <TextView
      android:id="@+id/content"
      android:layout_width="0dip"
      android:layout_height="wrap_content"
      android:layout_weight="1"
      android:gravity="center"
      android:textColor="?attr/colorForeground"
      android:textStyle="bold"
      tools:text="27.03.2018" />
  </LinearLayout>
</LinearLayout>