app/src/main/res/layout/activity_comments.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_comments"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".chat.comment.CommentsActivity">
<ListView
android:id="@+id/list_of_comments"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/comment_input_container"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="15dp"
android:divider="@android:color/transparent"
android:dividerHeight="16dp"
android:scrollbarStyle="outsideInset" />
<LinearLayout
android:id="@+id/comment_input_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical">
<LinearLayout
android:id="@+id/commentInput"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="0dp"
android:background="@color/fui_buttonShadow"
android:orientation="horizontal">
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/comment_input_layout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginRight="16dp"
android:layout_weight="1">
<com.google.android.material.textfield.TextInputEditText
android:id="@+id/comment_input"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/input" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/comment_post"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:clickable="true"
android:contentDescription="@string/send"
android:focusable="true"
android:tint="@android:color/white"
app:fabSize="mini"
app:srcCompat="@android:drawable/ic_menu_send" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>