session-android/res/layout/conversation_input_panel.xml

<?xml version="1.0" encoding="utf-8"?>
<org.thoughtcrime.securesms.components.InputPanel
    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/bottom_panel"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:orientation="horizontal"
    android:clickable="true"
    android:background="@color/compose_view_background"
    android:paddingStart="16dp"
    android:paddingEnd="16dp"
    android:paddingTop="6dp"
    android:paddingBottom="6dp"
    android:clipChildren="false"
    android:clipToPadding="false">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/input_panel_sticker_suggestion"
        android:layout_width="match_parent"
        android:layout_height="90dp"
        android:background="?emoji_tab_strip_background"
        android:visibility="gone" />

    <FrameLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:clipChildren="false"
        android:clipToPadding="false">

        <LinearLayout
            android:id="@+id/compose_bubble"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?attr/conversation_input_background"
            android:clipChildren="false"
            android:clipToPadding="false"
            android:orientation="vertical">

            <org.thoughtcrime.securesms.components.QuoteView
                android:id="@+id/quote_view"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="6dp"
                android:layout_marginEnd="6dp"
                android:layout_marginTop="6dp"
                android:visibility="gone"
                app:message_type="preview"
                app:quote_colorPrimary="?attr/conversation_item_sent_text_primary_color"
                app:quote_colorSecondary="?attr/conversation_item_sent_text_primary_color"
                tools:visibility="visible"/>

            <org.thoughtcrime.securesms.components.LinkPreviewView
                android:id="@+id/link_preview"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="6dp"
                android:layout_marginEnd="6dp"
                android:layout_marginTop="6dp"
                android:visibility="gone"
                app:linkpreview_type="compose" />

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:clipChildren="false"
                android:clipToPadding="false">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingStart="10dp"
                    android:clipChildren="false"
                    android:clipToPadding="false">

                    <org.thoughtcrime.securesms.components.emoji.EmojiToggle
                        android:id="@+id/emoji_toggle"
                        android:layout_width="wrap_content"
                        android:layout_height="@dimen/conversation_compose_height"
                        android:layout_gravity="bottom"
                        android:paddingStart="4dp"
                        android:paddingEnd="6dp"
                        android:background="?selectableItemBackgroundBorderless"
                        android:contentDescription="@string/conversation_activity__emoji_toggle_description" />

                    <Space
                        android:layout_width="0dp"
                        android:layout_height="@dimen/conversation_compose_height" />

                    <org.thoughtcrime.securesms.components.ComposeText
                        style="@style/ComposeEditText"
                        android:id="@+id/embedded_text_editor"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_vertical"
                        android:textAlignment="viewStart"
                        android:layout_weight="1"
                        android:textColorHint="#99FFFFFF"
                        android:textSize="@dimen/small_font_size"
                        android:nextFocusForward="@+id/send_button"
                        android:nextFocusRight="@+id/send_button"
                        android:textCursorDrawable="@drawable/session_edit_text_cursor"
                        tools:visibility="invisible"
                        tools:hint="Send TextSecure message" >
                        <requestFocus />

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

                    <FrameLayout
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent"
                        android:clipChildren="false"
                        android:clipToPadding="false">

                        <org.thoughtcrime.securesms.components.HidingLinearLayout
                            android:id="@+id/quick_attachment_toggle"
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:layout_gravity="right|end"
                            android:clipChildren="false"
                            android:clipToPadding="false">

                            <ImageButton
                                android:id="@+id/quick_camera_toggle"
                                android:layout_width="wrap_content"
                                android:layout_height="match_parent"
                                android:layout_gravity="center_vertical"
                                android:src="?quick_camera_icon"
                                android:paddingStart="6dp"
                                android:paddingEnd="6dp"
                                android:background="?selectableItemBackgroundBorderless"
                                android:contentDescription="@string/conversation_activity__quick_attachment_drawer_toggle_camera_description" />

                            <org.thoughtcrime.securesms.components.MicrophoneRecorderView
                                android:id="@+id/recorder_view"
                                android:layout_height="match_parent"
                                android:layout_width="36dp"
                                android:layout_gravity="center"
                                android:clipChildren="false"
                                android:clipToPadding="false">

                                <include layout="@layout/microphone_recorder_view" />

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

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

                        <org.thoughtcrime.securesms.components.HidingLinearLayout
                            android:id="@+id/inline_attachment_container"
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:layout_gravity="right|end">

                            <ImageButton
                                android:id="@+id/inline_attachment_button"
                                android:layout_width="wrap_content"
                                android:layout_height="@dimen/conversation_compose_height"
                                android:layout_gravity="bottom"
                                android:padding="8dp"
                                android:src="@drawable/ic_add_white_24dp"
                                android:tint="?attr/conversation_input_inline_attach_icon_tint"
                                android:background="?selectableItemBackgroundBorderless"/>

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

                    </FrameLayout>

                </LinearLayout>

                <include layout="@layout/recording_layout" />

            </FrameLayout>

        </LinearLayout>

    </FrameLayout>

    <org.thoughtcrime.securesms.components.AnimatingToggle
        android:id="@+id/button_toggle"
        android:layout_width="@dimen/conversation_compose_height"
        android:layout_height="@dimen/conversation_compose_height"
        android:layout_marginStart="12dp"
        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_circle_plus"
            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:scaleType="centerInside"
            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>

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