session-android/res/layout/conversation_activity.xml

<?xml version="1.0" encoding="utf-8"?>

<org.thoughtcrime.securesms.components.KeyboardAwareLinearLayout
        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/layout_container"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="?conversation_background"
        android:orientation="vertical">

    <RelativeLayout android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    android:layout_weight="1"
                    android:orientation="vertical"
                    android:gravity="bottom">

        <FrameLayout android:id="@+id/fragment_content"
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"
                     android:layout_above="@+id/bottom_container" />

        <LinearLayout
                android:layout_alignParentBottom="true"
                android:id="@id/bottom_container"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

            <ScrollView android:layout_width="fill_parent"
                        android:layout_height="0dp"
                        android:layout_weight="1">
                <FrameLayout
                        android:id="@+id/attachment_editor"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:visibility="gone">

                    <FrameLayout
                            android:paddingLeft="10dp"
                            android:paddingTop="10dp"
                            android:layout_width="fill_parent"
                            android:layout_height="fill_parent">

                        <org.thoughtcrime.securesms.components.ThumbnailView
                                android:id="@+id/attachment_thumbnail"
                                android:layout_width="230dp"
                                android:layout_height="150dp"
                                app:riv_corner_radius="3dp"
                                android:contentDescription="@string/conversation_activity__attachment_thumbnail"/>
                    </FrameLayout>

                    <ImageView android:id="@+id/remove_image_button"
                               android:layout_width="wrap_content"
                               android:layout_height="wrap_content"
                               android:src="@drawable/conversation_attachment_close_circle"
                               android:layout_gravity="top|left"/>

               </FrameLayout>
            </ScrollView>

            <LinearLayout android:id="@+id/bottom_panel"
                          android:layout_width="fill_parent"
                          android:layout_height="wrap_content"
                          android:gravity="center_vertical"
                          android:orientation="horizontal"
                          android:padding="5dp">

                <LinearLayout android:id="@+id/compose_bubble"
                              android:layout_width="0dp"
                              android:layout_height="wrap_content"
                              android:layout_weight="1"
                              android:background="@drawable/sent_bubble">

                    <org.thoughtcrime.securesms.components.emoji.EmojiToggle
                        android:id="@+id/emoji_toggle"
                        android:layout_width="37dp"
                        android:layout_height="37dp"
                        android:layout_gravity="bottom"
                        android:background="@drawable/touch_highlight_background"
                        android:contentDescription="@string/conversation_activity__emoji_toggle_description" />

                    <org.thoughtcrime.securesms.components.ComposeText
                        style="@style/ComposeEditText"
                        android:id="@+id/embedded_text_editor"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:minHeight="37dp"
                        android:layout_gravity="center_vertical"
                        android:layout_weight="1"
                        android:nextFocusForward="@+id/send_button"
                        android:nextFocusRight="@+id/send_button"
                        tools:hint="Send TextSecure message" />
                </LinearLayout>

                <org.thoughtcrime.securesms.components.AnimatingToggle
                    android:id="@+id/button_toggle"
                    android:layout_width="50dp"
                    android:layout_height="50dp"
                    android:background="@drawable/circle_tintable"
                    android:layout_gravity="bottom">

                    <ImageButton
                        android:id="@+id/attach_button"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_gravity="center"
                        android:background="@drawable/circle_touch_highlight_background"
                        android:src="@drawable/ic_attach_white_24dp"
                        android:contentDescription="@string/ConversationActivity_add_attachment"
                        android:nextFocusLeft="@+id/embedded_text_editor" />

                    <org.thoughtcrime.securesms.components.SendButton
                        android:id="@+id/send_button"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:contentDescription="@string/conversation_activity__send"
                        android:nextFocusLeft="@+id/embedded_text_editor"
                        android:src="?conversation_transport_sms_indicator"
                        android:background="@drawable/circle_touch_highlight_background" />

                </org.thoughtcrime.securesms.components.AnimatingToggle>

            </LinearLayout>

            <Button android:id="@+id/unblock_button"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:padding="20dp"
                    android:text="@string/ConversationActivity_unblock"
                    android:visibility="gone"/>

           <TextView android:id="@+id/space_left"
                     android:paddingLeft="5dip"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
                     android:visibility="gone"
                     android:text="160/160 (1)" />

        </LinearLayout>
    </RelativeLayout>
</org.thoughtcrime.securesms.components.KeyboardAwareLinearLayout>