Signal-Android/app/src/main/res/layout/webrtc_call_view.xml

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:viewBindingIgnore="true"
    xmlns:tools="http://schemas.android.com/tools"
    tools:parentTag="org.thoughtcrime.securesms.components.webrtc.WebRtcCallView">

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/fold_top_guideline"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:orientation="horizontal"
        app:layout_constraintGuide_end="0dp" />

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/call_screen_participants_parent"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/fold_top_guideline"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.viewpager2.widget.ViewPager2
            android:id="@+id/call_screen_participants_pager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

    </androidx.constraintlayout.widget.ConstraintLayout>

    <FrameLayout
        android:id="@+id/call_screen_large_local_renderer_frame"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@color/black"
        app:layout_constraintBottom_toTopOf="@id/fold_top_guideline"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:visibility="gone">

        <org.thoughtcrime.securesms.components.webrtc.TextureViewRenderer
            android:id="@+id/call_screen_large_local_renderer"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

        <androidx.appcompat.widget.AppCompatImageView
            android:id="@+id/call_screen_large_local_video_off_avatar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="gone" />

        <androidx.appcompat.widget.AppCompatTextView
            android:id="@+id/call_screen_large_local_video_off"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="@string/WebRtcCallView__your_video_is_off"
            android:textAppearance="@style/TextAppearance.Signal.Body2"
            android:textColor="@color/white"
            android:visibility="gone"
            app:drawableTopCompat="@drawable/ic_video_off_solid_white_28"
            tools:visibility="visible" />

    </FrameLayout>

    <View
        android:id="@+id/call_screen_full_shade"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/transparent_black_40" />

    <ViewStub
        android:id="@+id/group_call_call_full_view"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout="@layout/group_call_call_full"
        app:layout_constraintBottom_toTopOf="@id/fold_top_guideline"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/call_screen"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/call_screen_show_participants_guideline"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="0dp" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/fold_top_call_screen_guideline"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:orientation="horizontal"
            app:layout_constraintBottom_toTopOf="@id/call_screen_navigation_bar_guideline"
            app:layout_constraintGuide_end="0dp" />

        <View
            android:id="@+id/call_screen_header_gradient"
            android:layout_width="match_parent"
            android:layout_height="160dp"
            android:background="@drawable/webrtc_call_screen_header_gradient"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/call_screen_status_bar_guideline"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            tools:layout_constraintGuide_begin="48dp" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/call_screen_navigation_bar_guideline"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            tools:layout_constraintGuide_end="48dp" />

        <Space
            android:id="@+id/call_screen_footer_gradient_spacer"
            android:layout_width="match_parent"
            android:layout_height="30dp"
            app:layout_constraintBottom_toBottomOf="@id/call_screen_footer_gradient_barrier" />

        <View
            android:id="@+id/call_screen_footer_gradient"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_margin="-40dp"
            android:background="@drawable/webrtc_call_screen_footer_gradient"
            android:visibility="gone"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="@id/call_screen_footer_gradient_spacer"
            tools:visibility="visible" />

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/call_screen_participants_recycler"
            android:layout_width="wrap_content"
            android:layout_height="72dp"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="16dp"
            android:layout_marginBottom="16dp"
            android:orientation="horizontal"
            android:visibility="gone"
            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
            app:layout_constraintBottom_toTopOf="@id/call_screen_video_toggle"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="1"
            app:layout_constraintStart_toStartOf="parent"
            app:reverseLayout="true"
            tools:itemCount="2"
            tools:listitem="@layout/webrtc_call_participant_recycler_item"
            tools:visibility="visible" />

        <org.thoughtcrime.securesms.util.views.TouchInterceptingFrameLayout
            android:id="@+id/call_screen_pip_area"
            android:layout_width="0dp"
            android:layout_height="0dp"
            app:layout_constraintBottom_toTopOf="@+id/fold_top_call_screen_guideline"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            tools:visibility="gone">

            <com.google.android.material.card.MaterialCardView
                android:id="@+id/call_screen_pip"
                android:layout_width="@dimen/picture_in_picture_gesture_helper_pip_width"
                android:layout_height="@dimen/picture_in_picture_gesture_helper_pip_height"
                android:background="@null"
                android:clipChildren="true"
                android:translationX="100000dp"
                android:translationY="100000dp"
                android:visibility="gone"
                app:cardCornerRadius="8dp"
                tools:translationX="0dp"
                tools:translationY="0dp"
                tools:visibility="visible">

                <include
                    android:id="@+id/call_screen_small_local_renderer"
                    layout="@layout/call_participant_item"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" />

            </com.google.android.material.card.MaterialCardView>
        </org.thoughtcrime.securesms.util.views.TouchInterceptingFrameLayout>

        <include
            layout="@layout/webrtc_call_view_header_large"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="64dp"
            android:layout_marginEnd="64dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="@id/call_screen_status_bar_guideline" />

        <org.thoughtcrime.securesms.components.webrtc.WebRtcAudioOutputToggleButton
            android:id="@+id/call_screen_speaker_toggle"
            android:layout_width="@dimen/webrtc_button_size"
            android:layout_height="@dimen/webrtc_button_size"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:scaleType="fitXY"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallView__speaker"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toStartOf="@id/call_screen_camera_direction_toggle"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toStartOf="parent"
            app:srcCompat="@drawable/webrtc_call_screen_speaker_toggle"
            tools:visibility="visible" />

        <TextView
            android:id="@+id/call_screen_speaker_toggle_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__speaker"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_speaker_toggle"
            app:layout_constraintStart_toStartOf="@id/call_screen_speaker_toggle"
            app:layout_constraintTop_toBottomOf="@id/call_screen_speaker_toggle"
            app:layout_constraintVertical_bias="0"
            tools:visibility="visible" />

        <ImageView
            android:id="@+id/call_screen_camera_direction_toggle"
            android:layout_width="@dimen/webrtc_button_size"
            android:layout_height="@dimen/webrtc_button_size"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:clickable="false"
            android:scaleType="fitXY"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallView__flip"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toStartOf="@id/call_screen_video_toggle"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toEndOf="@id/call_screen_speaker_toggle"
            app:srcCompat="@drawable/webrtc_call_screen_camera_toggle"
            tools:visibility="visible" />

        <TextView
            android:id="@+id/call_screen_camera_direction_toggle_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__flip"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_camera_direction_toggle"
            app:layout_constraintStart_toStartOf="@id/call_screen_camera_direction_toggle"
            app:layout_constraintTop_toBottomOf="@id/call_screen_camera_direction_toggle"
            app:layout_constraintVertical_bias="0"
            tools:visibility="visible" />

        <org.thoughtcrime.securesms.components.AccessibleToggleButton
            android:id="@+id/call_screen_video_toggle"
            style="@style/WebRtcCallV2CompoundButton"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:background="@drawable/webrtc_call_screen_video_toggle"
            android:stateListAnimator="@null"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallView__camera"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toStartOf="@id/call_screen_audio_mic_toggle"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toEndOf="@id/call_screen_camera_direction_toggle"
            tools:checked="true"
            tools:visibility="visible" />

        <TextView
            android:id="@+id/call_screen_video_toggle_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__camera"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_video_toggle"
            app:layout_constraintStart_toStartOf="@id/call_screen_video_toggle"
            app:layout_constraintTop_toBottomOf="@id/call_screen_video_toggle"
            app:layout_constraintVertical_bias="0"
            tools:visibility="visible" />

        <org.thoughtcrime.securesms.components.AccessibleToggleButton
            android:id="@+id/call_screen_audio_mic_toggle"
            style="@style/WebRtcCallV2CompoundButton"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:background="@drawable/webrtc_call_screen_mic_toggle"
            android:stateListAnimator="@null"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallView__unmute"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toStartOf="@id/call_screen_audio_ring_toggle"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toEndOf="@id/call_screen_video_toggle"
            tools:visibility="visible" />

        <TextView
            android:id="@+id/call_screen_audio_mic_toggle_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__mute"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_audio_mic_toggle"
            app:layout_constraintStart_toStartOf="@id/call_screen_audio_mic_toggle"
            app:layout_constraintTop_toBottomOf="@id/call_screen_audio_mic_toggle"
            app:layout_constraintVertical_bias="0"
            tools:visibility="visible" />

        <org.thoughtcrime.securesms.components.AccessibleToggleButton
            android:id="@+id/call_screen_audio_ring_toggle"
            style="@style/WebRtcCallV2CompoundButton"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:background="@drawable/webrtc_call_screen_ring_toggle"
            android:stateListAnimator="@null"
            android:visibility="gone"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toStartOf="@id/call_screen_end_call"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toEndOf="@id/call_screen_audio_mic_toggle" />

        <TextView
            android:id="@+id/call_screen_audio_ring_toggle_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__ring"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_audio_ring_toggle"
            app:layout_constraintStart_toStartOf="@id/call_screen_audio_ring_toggle"
            app:layout_constraintTop_toBottomOf="@id/call_screen_audio_ring_toggle"
            app:layout_constraintVertical_bias="0" />

        <ImageView
            android:id="@+id/call_screen_end_call"
            android:layout_width="@dimen/webrtc_button_size"
            android:layout_height="@dimen/webrtc_button_size"
            android:layout_marginStart="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:clickable="false"
            android:scaleType="fitXY"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallView__end_call"
            app:layout_constraintBottom_toTopOf="@id/call_screen_button_labels_barrier"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_chainStyle="packed"
            app:layout_constraintStart_toEndOf="@id/call_screen_audio_ring_toggle"
            app:srcCompat="@drawable/webrtc_call_screen_hangup"
            tools:visibility="visible" />

        <TextView
            android:id="@+id/call_screen_end_call_label"
            android:layout_width="64dp"
            android:layout_height="wrap_content"
            android:layout_marginBottom="32dp"
            android:clickable="false"
            android:ellipsize="end"
            android:gravity="center_horizontal"
            android:hyphenationFrequency="normal"
            android:lines="2"
            android:text="@string/WebRtcCallView__end_call"
            android:textAppearance="@style/TextAppearance.Signal.Subtitle"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constrainedHeight="true"
            app:layout_constraintBottom_toTopOf="@id/call_screen_start_call_controls"
            app:layout_constraintEnd_toEndOf="@id/call_screen_end_call"
            app:layout_constraintStart_toStartOf="@id/call_screen_end_call"
            app:layout_constraintTop_toBottomOf="@id/call_screen_end_call"
            app:layout_constraintVertical_bias="0"
            tools:visibility="visible" />

        <androidx.constraintlayout.widget.Barrier
            android:id="@+id/call_screen_button_labels_barrier"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            app:barrierDirection="top"
            app:constraint_referenced_ids="call_screen_speaker_toggle_label,call_screen_camera_direction_toggle_label,call_screen_video_toggle_label,call_screen_audio_mic_toggle_label,call_screen_audio_ring_toggle_label,call_screen_end_call_label" />

        <ImageView
            android:id="@+id/call_screen_decline_call"
            android:layout_width="56dp"
            android:layout_height="56dp"
            android:layout_marginStart="66dp"
            android:layout_marginBottom="65dp"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallScreen__decline"
            app:layout_constraintBottom_toTopOf="@id/call_screen_navigation_bar_guideline"
            app:layout_constraintEnd_toStartOf="@id/call_screen_answer_call"
            app:layout_constraintHorizontal_chainStyle="spread_inside"
            app:layout_constraintStart_toStartOf="parent"
            app:srcCompat="@drawable/webrtc_call_screen_hangup"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/call_screen_decline_call_label"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:hyphenationFrequency="normal"
            android:text="@string/WebRtcCallScreen__decline"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constraintEnd_toEndOf="@id/call_screen_decline_call"
            app:layout_constraintStart_toStartOf="@id/call_screen_decline_call"
            app:layout_constraintTop_toBottomOf="@id/call_screen_decline_call"
            tools:visibility="gone" />

        <ImageView
            android:id="@+id/call_screen_answer_call"
            android:layout_width="56dp"
            android:layout_height="56dp"
            android:layout_marginEnd="66dp"
            android:layout_marginBottom="65dp"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallScreen__answer"
            app:layout_constraintBottom_toTopOf="@id/call_screen_navigation_bar_guideline"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_chainStyle="spread_inside"
            app:layout_constraintStart_toEndOf="@id/call_screen_decline_call"
            app:srcCompat="@drawable/webrtc_call_screen_answer"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/call_screen_answer_call_label"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="5dp"
            android:hyphenationFrequency="normal"
            android:text="@string/WebRtcCallScreen__answer"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constraintEnd_toEndOf="@id/call_screen_answer_call"
            app:layout_constraintStart_toStartOf="@id/call_screen_answer_call"
            app:layout_constraintTop_toBottomOf="@id/call_screen_answer_call"
            tools:visibility="gone" />

        <ImageView
            android:id="@+id/call_screen_answer_without_video"
            android:layout_width="56dp"
            android:layout_height="56dp"
            android:layout_marginBottom="5dp"
            android:visibility="gone"
            android:contentDescription="@string/WebRtcCallScreen__answer_without_video"
            app:layout_constraintBottom_toTopOf="@id/call_screen_answer_without_video_label"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:srcCompat="@drawable/webrtc_call_screen_answer_without_video"
            tools:visibility="gone" />

        <TextView
            android:id="@+id/call_screen_answer_without_video_label"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="9dp"
            android:hyphenationFrequency="normal"
            android:text="@string/WebRtcCallScreen__answer_without_video"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:layout_constraintBottom_toTopOf="@id/call_screen_answer_call"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            tools:visibility="gone" />

        <LinearLayout
            android:id="@+id/call_screen_start_call_controls"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:orientation="horizontal"
            android:paddingStart="16dp"
            android:paddingEnd="16dp"
            android:paddingBottom="32dp"
            android:visibility="gone"
            app:layout_constraintBottom_toTopOf="@id/call_screen_navigation_bar_guideline"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            tools:visibility="visible">

            <com.google.android.material.button.MaterialButton
                android:id="@+id/call_screen_start_call_start_call"
                style="@style/Widget.Signal.Button.Flat"
                android:layout_width="wrap_content"
                android:layout_height="56dp"
                android:minWidth="160dp"
                android:text="@string/WebRtcCallView__start_call"
                android:textAllCaps="false"
                android:textColor="@color/core_green_text_button"
                app:backgroundTint="@color/core_green"
                app:cornerRadius="28dp" />

        </LinearLayout>

        <com.google.android.material.button.MaterialButton
            android:id="@+id/call_screen_error_cancel"
            style="@style/Widget.Signal.Button.Flat"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="16dp"
            android:layout_marginBottom="32dp"
            android:layout_weight="1"
            android:text="@android:string/cancel"
            android:textAllCaps="false"
            android:textColor="@color/core_white"
            android:visibility="gone"
            app:backgroundTint="@color/transparent_white_40"
            app:layout_constraintBottom_toTopOf="@id/call_screen_navigation_bar_guideline"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            tools:visibility="gone" />

        <ViewStub
            android:id="@+id/call_screen_group_call_speaker_hint"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="24dp"
            android:inflatedId="@+id/call_screen_group_call_speaker_hint_view"
            android:layout="@layout/group_call_speaker_hint"
            app:layout_constraintBottom_toTopOf="@+id/call_screen_footer_gradient_barrier"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent" />

        <LinearLayout
            android:id="@+id/fold_show_participants_menu_counter_wrapper"
            android:layout_width="wrap_content"
            android:layout_height="56dp"
            android:background="?attr/selectableItemBackground"
            android:gravity="center"
            android:minWidth="48dp"
            android:orientation="horizontal"
            android:paddingStart="16dp"
            android:paddingEnd="16dp"
            android:visibility="gone"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/call_screen_show_participants_guideline"
            tools:visibility="visible">

            <androidx.appcompat.widget.AppCompatImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="4dp"
                app:srcCompat="@drawable/ic_group_solid_24"
                app:tint="@color/core_white" />

            <TextView
                android:id="@+id/fold_show_participants_menu_counter"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/core_white"
                android:textSize="13sp"
                android:textStyle="bold"
                tools:text="0" />

        </LinearLayout>

        <androidx.constraintlayout.widget.Barrier
            android:id="@+id/call_screen_footer_gradient_barrier"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:barrierDirection="top"
            app:constraint_referenced_ids="call_screen_answer_call,call_screen_decline_call,call_screen_audio_mic_toggle,call_screen_camera_direction_toggle,call_screen_video_toggle,call_screen_answer_without_video,call_screen_speaker_toggle,call_screen_end_call" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</merge>