ring-android/app/src/main/res/layout/frag_call.xml

<?xml version="1.0" encoding="utf-8"?><!--
Copyright (C) 2004-2016 Savoir-faire Linux Inc.

Author: Adrien Beraud <adrien.beraud@savoirfairelinux.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
-->
<FrameLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true"
    tools:context=".client.CallActivity">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <SurfaceView
            android:id="@+id/video_preview_surface"
            android:layout_width="match_parent"
            android:layout_height="32dp"
            android:layout_centerInParent="true"
            android:layout_gravity="center"
            android:visibility="gone"
            tools:visibility="visible" />

        <SurfaceView
            android:id="@+id/camera_preview_surface"
            android:layout_width="160dp"
            android:layout_height="120dp"
            android:layout_alignParentEnd="true"
            android:layout_alignParentBottom="true"
            android:layout_margin="12dp"
            android:visibility="gone"
            tools:visibility="visible" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:fitsSystemWindows="true"
        android:animateLayoutChanges="true">

        <LinearLayout
            android:id="@+id/contact_bubble_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:gravity="center"
            android:orientation="vertical"
            android:visibility="invisible">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="230dp">

                <com.rodolfonavalon.shaperipplelibrary.ShapeRipple
                    android:id="@+id/shape_ripple"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    app:enable_color_transition="true"
                    app:ripple_color="@color/white"
                    app:ripple_count="3"
                    app:ripple_duration="5000"
                    app:ripple_stroke_width="15dp" />

                <ImageView
                    android:id="@+id/contact_bubble"
                    android:layout_width="160dp"
                    android:layout_height="160dp"
                    android:layout_centerInParent="true"
                    tools:src="@drawable/ic_contact_picture_fallback" />
            </RelativeLayout>

            <TextView
                android:id="@+id/contact_bubble_txt"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:ellipsize="middle"
                android:gravity="center_horizontal"
                android:paddingStart="32dp"
                android:paddingEnd="32dp"
                android:singleLine="true"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="@color/text_color_primary_dark"
                tools:text="Contact Name" />

            <TextView
                android:id="@+id/contact_bubble_num_txt"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:ellipsize="middle"
                android:gravity="center_horizontal"
                android:paddingStart="32dp"
                android:paddingEnd="32dp"
                android:singleLine="true"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:textColor="@color/text_color_secondary_dark"
                android:visibility="gone"
                tools:text="ring:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
                tools:visibility="visible" />

            <TextView
                android:id="@+id/call_status_txt"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_horizontal"
                android:paddingStart="32dp"
                android:paddingEnd="32dp"
                android:textColor="@color/text_color_primary_dark"
                android:textSize="16sp"
                tools:text="Connecting" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/contact_bubble_layout"
            android:layout_centerHorizontal="true"
            android:orientation="horizontal"
            tools:visibility="gone">

            <android.support.design.widget.FloatingActionButton
                android:id="@+id/call_refuse_btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="16dp"
                android:contentDescription="@string/action_call_decline"
                app:backgroundTint="@color/error_red"
                app:elevation="6dp"
                app:fabSize="normal"
                app:pressedTranslationZ="12dp"
                app:rippleColor="@android:color/white"
                app:srcCompat="@drawable/ic_call_end_white"
                app:useCompatPadding="true" />

            <android.support.design.widget.FloatingActionButton
                android:id="@+id/call_accept_btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="16dp"
                android:contentDescription="@string/action_call_accept"
                app:backgroundTint="#4caf50"
                app:elevation="6dp"
                app:fabSize="normal"
                app:pressedTranslationZ="12dp"
                app:rippleColor="@android:color/white"
                app:srcCompat="@drawable/ic_call_white"
                app:useCompatPadding="true" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/call_control_group"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_alignParentBottom="true"
            android:layout_marginStart="16dp"
            android:layout_marginBottom="16dp"
            android:gravity="center"
            android:orientation="vertical"
            android:visibility="gone"
            tools:visibility="visible">

            <ImageButton
                android:id="@+id/call_camera_flip_btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="12dp"
                android:background="@drawable/call_button_background"
                android:contentDescription="@string/ab_action_flipcamera"
                android:padding="16dp"
                android:tint="@color/white"
                app:srcCompat="@drawable/ic_camera_front_white" />

            <cx.ring.views.CheckableImageButton
                android:id="@+id/call_mic_btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="12dp"
                android:background="@drawable/call_button_background"
                android:contentDescription="Mute microphone"
                android:padding="16dp"
                android:tint="@color/white"
                app:srcCompat="@drawable/baseline_mic_off_24"
                tools:visibility="visible" />

            <cx.ring.views.CheckableImageButton
                android:id="@+id/call_speaker_btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="12dp"
                android:background="@drawable/call_button_background"
                android:contentDescription="@string/ab_action_speakerphone"
                android:padding="16dp"
                android:tint="@color/white"
                app:srcCompat="@drawable/baseline_volume_up_24" />

        </LinearLayout>

        <EditText
            android:id="@+id/dialpad_edit_text"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:ems="10"
            android:inputType="phone"
            android:visibility="visible" />

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/call_hangup_btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="4dp"
            android:contentDescription="@string/action_call_hangup"
            app:backgroundTint="@color/error_red"
            app:elevation="6dp"
            app:fabSize="normal"
            app:pressedTranslationZ="12dp"
            app:rippleColor="@android:color/white"
            app:srcCompat="@drawable/ic_call_end_white"
            app:useCompatPadding="true" />

    </RelativeLayout>
</FrameLayout>