linphone-android/app/src/main/res/layout/settings_calls.xml

<?xml version="1.0" encoding="utf-8"?>
<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>
        <import type="android.view.View" />
        <variable
            name="viewModel"
            type="org.linphone.ui.main.settings.viewmodel.SettingsViewModel" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="20dp"
        android:background="@drawable/shape_squircle_white_background">

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:onClick="@{() -> viewModel.toggleEchoCanceller()}"
            android:id="@+id/echo_canceller_title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_echo_canceller_title"
            android:maxLines="1"
            android:ellipsize="end"
            android:visibility="gone"
            app:layout_constraintTop_toTopOf="@id/echo_canceller_switch"
            app:layout_constraintBottom_toTopOf="@id/echo_canceller_subtitle"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/echo_canceller_switch"/>

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_subtitle_style"
            android:onClick="@{() -> viewModel.toggleEchoCanceller()}"
            android:id="@+id/echo_canceller_subtitle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_echo_canceller_subtitle"
            android:visibility="gone"
            app:layout_constraintTop_toBottomOf="@id/echo_canceller_title"
            app:layout_constraintBottom_toBottomOf="@id/echo_canceller_switch"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/echo_canceller_switch"/>

        <com.google.android.material.materialswitch.MaterialSwitch
            style="@style/material_switch_style"
            android:id="@+id/echo_canceller_switch"
            android:onClick="@{() -> viewModel.toggleEchoCanceller()}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_marginEnd="16dp"
            android:checked="@{viewModel.echoCancellerEnabled}"
            android:visibility="gone"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:id="@+id/calibrate_echo_canceller"
            android:onClick="@{() -> viewModel.calibrateEchoCanceller()}"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:layout_marginTop="16dp"
            android:layout_marginBottom="@dimen/screen_bottom_margin"
            android:paddingTop="5dp"
            android:paddingBottom="5dp"
            android:text="@string/settings_calls_calibrate_echo_canceller_title"
            app:layout_constraintHorizontal_bias="1"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/calibrated_echo_canceller"
            app:layout_constraintTop_toBottomOf="@id/echo_canceller_subtitle"/>

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_subtitle_style"
            android:id="@+id/calibrated_echo_canceller"
            android:onClick="@{() -> viewModel.calibrateEchoCanceller()}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="16dp"
            android:gravity="center"
            android:text="@{viewModel.calibratedEchoCancellerValue, default=`0ms`}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="@id/calibrate_echo_canceller"
            app:layout_constraintBottom_toBottomOf="@id/calibrate_echo_canceller"/>

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:onClick="@{() -> viewModel.toggleAdaptiveRateControl()}"
            android:id="@+id/adaptive_rate_control_title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_adaptive_rate_control_title"
            android:maxLines="2"
            android:ellipsize="end"
            app:layout_constraintTop_toTopOf="@id/adaptive_rate_control_switch"
            app:layout_constraintBottom_toBottomOf="@id/adaptive_rate_control_switch"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/adaptive_rate_control_switch"/>

        <com.google.android.material.materialswitch.MaterialSwitch
            style="@style/material_switch_style"
            android:id="@+id/adaptive_rate_control_switch"
            android:onClick="@{() -> viewModel.toggleAdaptiveRateControl()}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_marginEnd="16dp"
            android:checked="@{viewModel.adaptiveRateControlEnabled}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/calibrate_echo_canceller" />

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:onClick="@{() -> viewModel.toggleEnableVideo()}"
            android:id="@+id/enable_video_title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_enable_video_title"
            android:maxLines="2"
            android:ellipsize="end"
            app:layout_constraintTop_toTopOf="@id/enable_video_switch"
            app:layout_constraintBottom_toBottomOf="@id/enable_video_switch"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/enable_video_switch"/>

        <com.google.android.material.materialswitch.MaterialSwitch
            style="@style/material_switch_style"
            android:id="@+id/enable_video_switch"
            android:onClick="@{() -> viewModel.toggleEnableVideo()}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_marginEnd="16dp"
            android:checked="@{viewModel.videoEnabled}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/adaptive_rate_control_switch" />

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:onClick="@{() -> viewModel.toggleVibrateOnIncomingCalls()}"
            android:id="@+id/vibrate_title"
            android:visibility="@{viewModel.isVibrationAvailable ? View.VISIBLE : View.GONE}"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_vibrate_while_ringing_title"
            android:maxLines="2"
            android:ellipsize="end"
            app:layout_constraintTop_toTopOf="@id/vibrate_switch"
            app:layout_constraintBottom_toBottomOf="@id/vibrate_switch"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/vibrate_switch"/>

        <com.google.android.material.materialswitch.MaterialSwitch
            style="@style/material_switch_style"
            android:id="@+id/vibrate_switch"
            android:onClick="@{() -> viewModel.toggleVibrateOnIncomingCalls()}"
            android:visibility="@{viewModel.isVibrationAvailable ? View.VISIBLE : View.GONE}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_marginEnd="16dp"
            android:checked="@{viewModel.vibrateDuringIncomingCall}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/enable_video_switch" />

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:onClick="@{() -> viewModel.toggleAutoRecordCall()}"
            android:id="@+id/auto_record_title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:text="@string/settings_calls_auto_record_title"
            android:maxLines="2"
            android:ellipsize="end"
            app:layout_constraintTop_toTopOf="@id/auto_record_switch"
            app:layout_constraintBottom_toBottomOf="@id/auto_record_switch"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toStartOf="@id/auto_record_switch"/>

        <com.google.android.material.materialswitch.MaterialSwitch
            style="@style/material_switch_style"
            android:id="@+id/auto_record_switch"
            android:onClick="@{() -> viewModel.toggleAutoRecordCall()}"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp"
            android:layout_marginEnd="16dp"
            android:checked="@{viewModel.autoRecordCalls}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/vibrate_switch" />

        <androidx.appcompat.widget.AppCompatTextView
            style="@style/settings_title_style"
            android:id="@+id/change_ringtone"
            android:onClick="@{() -> viewModel.changeRingtone()}"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:padding="5dp"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="10dp"
            android:layout_marginTop="16dp"
            android:layout_marginBottom="@dimen/screen_bottom_margin"
            android:text="@string/settings_calls_change_ringtone_title"
            android:drawableEnd="@drawable/arrow_square_out"
            android:drawableTint="?attr/color_main2_600"
            app:layout_constraintHorizontal_bias="1"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@id/auto_record_switch"/>

    </androidx.constraintlayout.widget.ConstraintLayout>

</layout>