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:padding="5dp"
        android:clipChildren="false"
        android:clipToPadding="false">

    <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:paddingTop="8dp"
                      android:paddingBottom="8dp"
                      android:background="@drawable/sent_bubble"
                      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:visibility="gone"
                    app:message_type="preview"
                    tools:visibility="visible"/>

            <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:clipChildren="false"
                    android:clipToPadding="false">

                    <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:visibility="invisible"
                        tools:hint="Send TextSecure message" >
                        <requestFocus />
                    </org.thoughtcrime.securesms.components.ComposeText>

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

                        <ImageButton
                            android:id="@+id/quick_camera_toggle"
                            android:layout_width="37dp"
                            android:layout_height="37dp"
                            android:layout_gravity="bottom"
                            android:src="?quick_camera_icon"
                            android:background="@drawable/touch_highlight_background"
                            android:contentDescription="@string/conversation_activity__quick_attachment_drawer_toggle_camera_description"
                            android:padding="10dp"/>

                        <org.thoughtcrime.securesms.components.MicrophoneRecorderView
                            android:id="@+id/recorder_view"
                            android:layout_width="37dp"
                            android:layout_height="37dp"
                            android:clipChildren="false"
                            android:clipToPadding="false">

                            <ImageButton
                                android:id="@+id/quick_audio_toggle"
                                android:layout_width="37dp"
                                android:layout_height="37dp"
                                android:layout_gravity="bottom"
                                android:src="?quick_mic_icon"
                                android:background="@null"
                                android:contentDescription="@string/conversation_activity__quick_attachment_drawer_record_and_send_audio_description"
                                android:padding="10dp"/>

                            <ImageView android:id="@+id/quick_audio_fab"
                                android:layout_width="74dp"
                                android:layout_height="74dp"
                                android:src="@drawable/ic_mic_white_48dp"
                                android:background="@drawable/circle_tintable"
                                android:backgroundTint="@color/red_400"
                                android:visibility="gone"
                                android:scaleType="center"/>

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

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

                </LinearLayout>

                <LinearLayout android:id="@+id/recording_container"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:orientation="horizontal"
                    tools:visibility="gone">

                    <TextView android:id="@+id/record_time"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:ellipsize="none"
                        android:layout_marginLeft="20dp"
                        android:layout_marginStart="20dp"
                        android:text="00:00"
                        android:textColor="#61737b"
                        android:textSize="20dp"
                        android:singleLine="true"
                        android:visibility="gone"
                        tools:visibility="visible"/>

                    <FrameLayout android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:clipChildren="true">

                        <TextView android:id="@+id/slide_to_cancel"
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:gravity="center"
                            android:drawableLeft="@drawable/ic_keyboard_arrow_left_grey600_24dp"
                            android:drawableStart="@drawable/ic_keyboard_arrow_left_grey600_24dp"
                            android:text="@string/conversation_input_panel__slide_to_cancel"
                            android:textAllCaps="true"
                            android:textColor="#61737b"
                            android:textSize="10sp"
                            android:ellipsize="none"
                            android:singleLine="true"
                            android:paddingLeft="20dp"
                            android:paddingStart="20dp"
                            android:visibility="gone"
                            tools:visibility="visible"/>

                    </FrameLayout>

                </LinearLayout>

            </FrameLayout>

        </LinearLayout>

    </FrameLayout>

    <org.thoughtcrime.securesms.components.AnimatingToggle
            android:id="@+id/button_toggle"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_marginBottom="1dp"
            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>
</org.thoughtcrime.securesms.components.InputPanel>