linphone-android/app/src/main/res/layout/chat_conversation_fragment.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"
    xmlns:bind="http://schemas.android.com/tools">

    <data>
        <import type="android.view.View" />
        <variable
            name="backClickListener"
            type="View.OnClickListener" />
        <variable
            name="goToInfoClickListener"
            type="View.OnClickListener" />
        <variable
            name="showMenuClickListener"
            type="View.OnClickListener" />
        <variable
            name="openMediaPickerClickListener"
            type="View.OnClickListener" />
        <variable
            name="openCameraClickListener"
            type="View.OnClickListener" />
        <variable
            name="openFilePickerClickListener"
            type="View.OnClickListener" />
        <variable
            name="scrollToBottomClickListener"
            type="View.OnClickListener" />
        <variable
            name="endToEndEncryptedEventClickListener"
            type="View.OnClickListener" />
        <variable
            name="warningConversationDisabledClickListener"
            type="View.OnClickListener" />
        <variable
            name="viewModel"
            type="org.linphone.ui.main.chat.viewmodel.ConversationViewModel" />
        <variable
            name="sendMessageViewModel"
            type="org.linphone.ui.main.chat.viewmodel.SendMessageInConversationViewModel" />
        <variable
            name="messageLongPressViewModel"
            type="org.linphone.ui.main.chat.viewmodel.ChatMessageLongPressViewModel" />
    </data>

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

        <androidx.coordinatorlayout.widget.CoordinatorLayout
            android:id="@+id/coordinator_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/constraint_layout"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="?attr/color_background_contrast_in_dark_mode">

                <androidx.constraintlayout.widget.Group
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    app:constraint_referenced_ids="avatar, title, show_menu"
                    android:visibility="@{viewModel.searchBarVisible ? View.GONE : View.VISIBLE}" />

                <androidx.constraintlayout.widget.Group
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    app:constraint_referenced_ids="cancel_search, search, search_up, search_down"
                    android:visibility="@{viewModel.searchBarVisible ? View.VISIBLE : View.GONE, default=gone}" />

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/back"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:onClick="@{backClickListener}"
                    android:visibility="@{viewModel.isCallConversation || viewModel.showBackButton &amp;&amp; !viewModel.searchBarVisible ? View.VISIBLE : View.GONE}"
                    android:src="@drawable/caret_left"
                    android:contentDescription="@string/content_description_go_back_icon"
                    app:tint="?attr/color_main1_500"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/events_list"/>

                <include
                    android:id="@+id/avatar"
                    android:onClick="@{goToInfoClickListener}"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:layout_marginBottom="5dp"
                    android:layout_marginStart="@{viewModel.isCallConversation || viewModel.showBackButton ? @dimen/chat_conversation_header_avatar_start_margin_if_back_button : @dimen/chat_conversation_header_avatar_start_margin_if_no_back_button, default=@dimen/chat_conversation_header_avatar_start_margin_if_back_button}"
                    layout="@layout/contact_avatar"
                    bind:model="@{viewModel.avatarModel}"
                    app:layout_constraintStart_toEndOf="@id/back"
                    app:layout_constraintTop_toTopOf="parent" />

                <androidx.appcompat.widget.AppCompatTextView
                    style="@style/default_text_style"
                    android:id="@+id/title"
                    android:onClick="@{goToInfoClickListener}"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="10dp"
                    android:layout_marginEnd="5dp"
                    android:maxLines="1"
                    android:ellipsize="end"
                    android:text="@{viewModel.isGroup ? viewModel.subject : viewModel.avatarModel.name, default=`John Doe`}"
                    android:textSize="16sp"
                    android:textColor="?attr/color_main2_600"
                    android:gravity="center_vertical"
                    app:layout_constraintEnd_toStartOf="@id/start_call"
                    app:layout_constraintStart_toEndOf="@id/avatar"
                    app:layout_constraintTop_toTopOf="@id/avatar"
                    app:layout_constraintBottom_toTopOf="@id/subtitle_barrier"/>

                <androidx.constraintlayout.widget.Barrier
                    android:id="@+id/subtitle_barrier"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    app:barrierDirection="top"
                    app:constraint_referenced_ids="unsecure, unsecure_label, muted, ephemeral_enabled, ephemeral_duration" />

                <ImageView
                    android:id="@+id/muted"
                    android:layout_width="@dimen/small_icon_size"
                    android:layout_height="@dimen/small_icon_size"
                    android:layout_marginEnd="5dp"
                    android:src="@drawable/bell_slash"
                    android:contentDescription="@string/content_description_chat_muted"
                    android:visibility="@{viewModel.isMuted ? View.VISIBLE : View.GONE, default=gone}"
                    app:layout_constraintStart_toStartOf="@id/title"
                    app:layout_constraintEnd_toStartOf="@id/unsecure"
                    app:layout_constraintTop_toBottomOf="@id/title"
                    app:layout_constraintBottom_toBottomOf="@id/avatar"
                    app:tint="?attr/color_main1_500"/>

                <ImageView
                    android:id="@+id/unsecure"
                    android:layout_width="@dimen/small_icon_size"
                    android:layout_height="@dimen/small_icon_size"
                    android:src="@drawable/lock_simple_open"
                    android:contentDescription="@string/content_description_chat_unsecured"
                    android:visibility="@{!viewModel.isEndToEndEncrypted &amp;&amp; viewModel.isEndToEndEncryptionAvailable ? View.VISIBLE : View.GONE, default=gone}"
                    app:layout_constraintStart_toEndOf="@id/muted"
                    app:layout_constraintEnd_toStartOf="@id/unsecure_label"
                    app:layout_constraintTop_toBottomOf="@id/title"
                    app:layout_constraintBottom_toBottomOf="@id/avatar"
                    app:tint="?attr/color_plain_text_security_warning_600"/>

                <androidx.appcompat.widget.AppCompatTextView
                    style="@style/default_text_style"
                    android:id="@+id/unsecure_label"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="5dp"
                    android:layout_marginEnd="5dp"
                    android:paddingBottom="2dp"
                    android:text="@string/conversation_warning_unsafe_bottom_sheet_title"
                    android:textSize="12sp"
                    android:textColor="?attr/color_plain_text_security_warning_600"
                    android:maxLines="1"
                    android:ellipsize="end"
                    android:visibility="@{!viewModel.isEndToEndEncrypted &amp;&amp; viewModel.isEndToEndEncryptionAvailable ? View.VISIBLE : View.GONE, default=gone}"
                    app:layout_constraintStart_toEndOf="@id/unsecure"
                    app:layout_constraintEnd_toStartOf="@id/ephemeral_enabled"
                    app:layout_constraintTop_toTopOf="@id/unsecure"
                    app:layout_constraintBottom_toBottomOf="@id/unsecure"/>

                <ImageView
                    android:id="@+id/ephemeral_enabled"
                    android:layout_width="@dimen/small_icon_size"
                    android:layout_height="@dimen/small_icon_size"
                    android:layout_marginStart="@{viewModel.isMuted ? @dimen/five : @dimen/zero}"
                    android:layout_marginEnd="5dp"
                    android:src="@drawable/clock_countdown"
                    android:contentDescription="@string/content_description_chat_ephemeral_enabled"
                    android:visibility="@{viewModel.ephemeralLifetime > 0L ? View.VISIBLE : View.GONE, default=gone}"
                    app:layout_constraintStart_toEndOf="@id/unsecure_label"
                    app:layout_constraintTop_toBottomOf="@id/title"
                    app:layout_constraintBottom_toBottomOf="@id/avatar"
                    app:tint="?attr/color_main1_500"/>

                <androidx.appcompat.widget.AppCompatTextView
                    style="@style/default_text_style"
                    android:id="@+id/ephemeral_duration"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="5dp"
                    android:layout_marginEnd="5dp"
                    android:paddingBottom="2dp"
                    android:text="@{viewModel.ephemeralLifeTimeLabel, default=`1 day`}"
                    android:textSize="12sp"
                    android:maxLines="1"
                    android:ellipsize="end"
                    android:visibility="@{viewModel.ephemeralLifetime > 0L ? View.VISIBLE : View.GONE, default=gone}"
                    app:layout_constraintStart_toEndOf="@id/ephemeral_enabled"
                    app:layout_constraintTop_toTopOf="@id/ephemeral_enabled"
                    app:layout_constraintBottom_toBottomOf="@id/ephemeral_enabled"/>

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/show_menu"
                    android:onClick="@{showMenuClickListener}"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/dots_three_vertical"
                    android:contentDescription="@string/content_description_show_popup_menu"
                    android:visibility="@{viewModel.isCallConversation ? View.GONE : View.VISIBLE}"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/events_list"
                    app:tint="?attr/color_main2_500"/>

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/start_call"
                    android:onClick="@{() -> viewModel.startCall()}"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/phone"
                    android:contentDescription="@string/content_description_call_start"
                    android:visibility="@{viewModel.isCallConversation || viewModel.isReadOnly || viewModel.searchBarVisible ? View.GONE : View.VISIBLE}"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintEnd_toStartOf="@id/show_menu"
                    app:layout_constraintBottom_toTopOf="@id/events_list"
                    app:tint="?attr/color_main2_500" />

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/cancel_search"
                    android:onClick="@{() -> viewModel.closeSearchBar()}"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/caret_left"
                    android:contentDescription="@string/content_description_cancel_filter"
                    app:layout_constraintBottom_toBottomOf="@id/search"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="@id/search"
                    app:tint="?attr/color_main2_500" />

                <com.google.android.material.textfield.TextInputLayout
                    style="?attr/textInputFilledStyle"
                    android:id="@+id/search"
                    android:layout_width="0dp"
                    android:layout_height="@dimen/top_bar_height"
                    android:gravity="center_vertical"
                    android:textColorHint="?attr/color_main2_400"
                    app:hintEnabled="false"
                    app:hintAnimationEnabled="false"
                    app:hintTextColor="?attr/color_main2_400"
                    app:boxStrokeWidth="0dp"
                    app:boxStrokeWidthFocused="0dp"
                    app:layout_constraintEnd_toStartOf="@id/search_up"
                    app:layout_constraintStart_toEndOf="@id/cancel_search"
                    app:layout_constraintTop_toTopOf="parent">

                    <com.google.android.material.textfield.TextInputEditText
                        android:id="@+id/search_field"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:textCursorDrawable="@null"
                        android:textSize="16sp"
                        android:inputType="text"
                        android:paddingVertical="1dp"
                        android:imeOptions="actionSearch"
                        android:text="@={viewModel.searchFilter}"
                        android:background="@android:color/transparent" />

                </com.google.android.material.textfield.TextInputLayout>

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/search_up"
                    android:onClick="@{() -> viewModel.searchUp()}"
                    android:enabled="@{viewModel.searchFilter.length() > 0 &amp;&amp; viewModel.canSearchUp}"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/caret_up"
                    android:contentDescription="@string/content_description_chat_search_message_up"
                    app:layout_constraintBottom_toBottomOf="@id/search"
                    app:layout_constraintEnd_toStartOf="@id/search_down"
                    app:layout_constraintTop_toTopOf="@id/search"
                    app:tint="@color/icon_color_selector" />

                <ImageView
                    style="@style/icon_top_bar_button_style"
                    android:id="@+id/search_down"
                    android:onClick="@{() -> viewModel.searchDown()}"
                    android:enabled="@{viewModel.searchFilter.length() > 0 &amp;&amp; viewModel.canSearchDown}"
                    android:layout_width="wrap_content"
                    android:layout_height="0dp"
                    android:src="@drawable/caret_down"
                    android:contentDescription="@string/content_description_chat_search_message_down"
                    app:layout_constraintBottom_toBottomOf="@id/search"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="@id/search"
                    app:tint="@color/icon_color_selector" />

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@+id/events_list"
                    android:layout_width="match_parent"
                    android:layout_height="0dp"
                    android:layout_marginTop="@dimen/top_bar_height"
                    android:paddingBottom="5dp"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/composing"/>

                <include
                    android:id="@+id/secured_event"
                    android:onClick="@{endToEndEncryptedEventClickListener}"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:visibility="@{viewModel.isEmpty &amp;&amp; viewModel.isEndToEndEncrypted ? View.VISIBLE : View.GONE}"
                    layout="@layout/chat_conversation_e2e_encrypted_first_event"
                    app:layout_constraintTop_toTopOf="@id/events_list"
                    app:layout_constraintStart_toStartOf="@id/events_list"
                    app:layout_constraintEnd_toEndOf="@id/events_list" />

                <ImageView
                    android:id="@+id/composing_icon"
                    android:layout_width="@dimen/small_icon_size"
                    android:layout_height="@dimen/small_icon_size"
                    android:layout_marginStart="10dp"
                    android:src="@{viewModel.composingIcon, default=@drawable/microphone}"
                    android:visibility="@{viewModel.composingLabel.length() == 0 ? View.GONE : View.VISIBLE}"
                    android:contentDescription="@null"
                    app:tint="?attr/color_main2_600"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintEnd_toStartOf="@id/composing"
                    app:layout_constraintTop_toTopOf="@id/composing"
                    app:layout_constraintBottom_toBottomOf="@id/composing"/>

                <androidx.appcompat.widget.AppCompatTextView
                    style="@style/default_text_style_300"
                    android:id="@+id/composing"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="5dp"
                    android:paddingBottom="5dp"
                    android:background="?attr/color_main2_000"
                    android:text="@{viewModel.composingLabel, default=`John Doe is composing...`}"
                    android:textSize="12sp"
                    android:visibility="@{viewModel.composingLabel.length() == 0 ? View.GONE : View.VISIBLE}"
                    app:layout_constraintBottom_toTopOf="@id/warning_disabled_not_secured"
                    app:layout_constraintStart_toEndOf="@id/composing_icon"
                    app:layout_constraintEnd_toEndOf="parent" />

                <include
                    style="@style/default_text_style"
                    android:id="@+id/warning_disabled_not_secured"
                    android:onClick="@{warningConversationDisabledClickListener}"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:visibility="@{viewModel.isDisabledBecauseNotSecured ? View.VISIBLE : View.GONE, default=gone}"
                    layout="@layout/chat_conversation_send_area_disabled_unsecured_warning"
                    app:layout_constraintBottom_toTopOf="@id/send_area"/>

                <include
                    android:id="@+id/send_area"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:visibility="@{viewModel.isReadOnly || viewModel.isDisabledBecauseNotSecured || viewModel.searchBarVisible ? View.GONE : View.VISIBLE}"
                    layout="@layout/chat_conversation_send_area"
                    app:layout_constraintBottom_toBottomOf="parent"
                    bind:openMediaPickerClickListener="@{openMediaPickerClickListener}"
                    bind:openCameraClickListener="@{openCameraClickListener}"
                    bind:openFilePickerClickListener="@{openFilePickerClickListener}"
                    bind:viewModel="@{sendMessageViewModel}"/>

                <com.google.android.material.floatingactionbutton.FloatingActionButton
                    android:id="@+id/scroll_to_bottom"
                    android:onClick="@{scrollToBottomClickListener}"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="end|bottom"
                    android:layout_margin="16dp"
                    android:src="@drawable/caret_double_down"
                    android:contentDescription="@string/content_description_chat_scroll_to_bottom_or_first_unread"
                    android:visibility="@{viewModel.isUserScrollingUp ? View.VISIBLE : View.GONE}"
                    app:tint="?attr/color_on_main"
                    app:backgroundTint="?attr/color_main1_500"
                    app:shapeAppearanceOverlay="@style/rounded"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintBottom_toTopOf="@id/send_area" />

                <androidx.appcompat.widget.AppCompatTextView
                    style="@style/unread_count_text_style"
                    android:id="@+id/unread_messages"
                    android:layout_width="@dimen/unread_count_indicator_size"
                    android:layout_height="@dimen/unread_count_indicator_size"
                    android:layout_marginTop="-13dp"
                    android:layout_marginStart="-11dp"
                    android:text="@{String.valueOf(viewModel.unreadMessagesCount), default=`1`}"
                    android:visibility="@{viewModel.isUserScrollingUp &amp;&amp; viewModel.unreadMessagesCount > 0 ? View.VISIBLE : View.GONE}"
                    app:layout_constraintTop_toTopOf="@id/scroll_to_bottom"
                    app:layout_constraintStart_toEndOf="@id/scroll_to_bottom"/>

            </androidx.constraintlayout.widget.ConstraintLayout>

            <include
                android:id="@+id/message_bottom_sheet"
                layout="@layout/chat_message_bottom_sheet" />

        </androidx.coordinatorlayout.widget.CoordinatorLayout>

        <include
            layout="@layout/operation_in_progress"
            bind:visibility="@{viewModel.searchInProgress}" />

        <include
            android:id="@+id/long_press_menu"
            android:visibility="@{messageLongPressViewModel.visible ? View.VISIBLE : View.GONE, default=gone}"
            bind:viewModel="@{messageLongPressViewModel}"
            layout="@layout/chat_bubble_long_press_menu" />

    </FrameLayout>

</layout>