schildichat-android/vector/src/main/res/layout/view_message_bubble.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    tools:parentTag="android.widget.RelativeLayout">

    <im.vector.app.core.platform.CheckableView
        android:id="@+id/messageSelectedBackground"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignBottom="@id/informationBottom"
        android:layout_alignParentTop="true"
        android:background="@drawable/highlighted_message_background" />

    <ImageView
        android:id="@+id/messageAvatarImageView"
        android:layout_width="44dp"
        android:layout_height="44dp"
        android:layout_marginStart="12dp"
        android:layout_marginTop="4dp"
        android:background="@drawable/bg_avatar_border"
        android:contentDescription="@string/avatar"
        android:elevation="2dp"
        android:padding="2dp"
        tools:src="@sample/user_round_avatars" />

    <View
        android:id="@+id/additionalTopSpace"
        android:layout_height="12dp"
        android:layout_width="0dp"
        android:layout_toEndOf="@id/messageStartGuideline" />

    <TextView
        android:id="@+id/messageMemberNameView"
        style="@style/Widget.Vector.TextView.Subtitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/additionalTopSpace"
        android:layout_alignParentEnd="true"
        android:layout_marginStart="12dp"
        android:layout_marginEnd="4dp"
        android:layout_toEndOf="@id/messageStartGuideline"
        android:ellipsize="end"
        android:maxLines="1"
        android:textAlignment="viewStart"
        android:textColor="?vctr_content_primary"
        android:textStyle="bold"
        tools:text="@sample/users.json/data/displayName" />

    <View
        android:id="@+id/messageStartGuideline"
        android:layout_width="0dp"
        android:layout_height="0dp"
        tools:layout_marginStart="52dp" />

    <View
        android:id="@+id/messageEndGuideline"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_alignParentEnd="true"
        android:layout_marginEnd="64dp" />

    <Space
        android:id="@+id/decorationSpace"
        android:layout_width="4dp"
        android:layout_height="8dp"
        android:layout_toEndOf="@id/messageStartGuideline" />

    <im.vector.app.core.ui.views.ShieldImageView
        android:id="@+id/messageE2EDecoration"
        android:layout_width="16dp"
        android:layout_height="16dp"
        android:layout_alignTop="@id/bubbleWrapper"
        android:layout_alignEnd="@id/decorationSpace"
        android:layout_marginTop="7dp"
        android:elevation="2dp"
        android:visibility="gone"
        tools:visibility="visible" />

    <FrameLayout
        android:id="@+id/bubbleWrapper"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/messageMemberNameView"
        android:layout_toStartOf="@id/messageEndGuideline"
        android:layout_toEndOf="@id/messageStartGuideline"
        android:addStatesFromChildren="true"
        android:clipChildren="false"
        android:clipToPadding="false">

        <im.vector.app.features.home.room.detail.timeline.view.MessageBubbleContentLayout
            android:id="@+id/bubbleView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="0dp"
            android:layout_marginEnd="0dp"
            android:addStatesFromChildren="true"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <include
                android:id="@+id/viewStubContainer"
                layout="@layout/item_timeline_event_view_stubs_container"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:addStatesFromChildren="true"
                app:layout_constrainedWidth="true"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintWidth_max="@dimen/chat_bubble_fixed_size" />

            <View
                android:id="@+id/messageOverlayView"
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:background="@drawable/overlay_bubble_media"
                android:visibility="gone"
                app:layout_constraintBottom_toBottomOf="@id/viewStubContainer"
                app:layout_constraintEnd_toEndOf="@id/viewStubContainer"
                app:layout_constraintStart_toStartOf="@id/viewStubContainer"
                app:layout_constraintTop_toTopOf="@id/viewStubContainer"
                tools:visibility="visible" />

            <TextView
                android:id="@+id/messageTimeView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_marginBottom="4dp"
                android:textColor="?vctr_content_tertiary"
                android:textSize="10sp"
                app:layout_constraintBottom_toBottomOf="@id/viewStubContainer"
                app:layout_constraintEnd_toEndOf="parent"
                tools:text="@tools:sample/date/hhmm" />

        </im.vector.app.features.home.room.detail.timeline.view.MessageBubbleContentLayout>
    </FrameLayout>

    <im.vector.app.core.ui.views.SendStateImageView
        android:id="@+id/messageSendStateImageView"
        android:layout_width="@dimen/item_event_message_state_size"
        android:layout_height="@dimen/item_event_message_state_size"
        android:layout_alignBottom="@id/bubbleWrapper"
        android:layout_alignParentEnd="true"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="4dp"
        android:contentDescription="@string/event_status_a11y_sending"
        android:src="@drawable/ic_sending_message"
        android:visibility="invisible"
        tools:tint="?vctr_content_tertiary"
        tools:visibility="visible" />

    <ProgressBar
        android:id="@+id/eventSendingIndicator"
        android:layout_width="@dimen/item_event_message_state_size"
        android:layout_height="@dimen/item_event_message_state_size"
        android:layout_alignBottom="@id/bubbleWrapper"
        android:layout_alignParentEnd="true"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="4dp"
        android:indeterminateTint="?vctr_content_secondary"
        android:visibility="gone"
        app:tint="?vctr_content_tertiary"
        tools:ignore="MissingPrefix"
        tools:visibility="visible" />

    <LinearLayout
        android:id="@+id/informationBottom"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/bubbleWrapper"
        android:layout_marginTop="2dp"
        android:layout_marginBottom="2dp"
        android:layout_toStartOf="@id/messageEndGuideline"
        android:layout_toEndOf="@id/messageStartGuideline"
        android:addStatesFromChildren="true"
        android:orientation="vertical">

        <com.google.android.flexbox.FlexboxLayout
            android:id="@+id/reactionsContainer"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="4dp"
            app:dividerDrawable="@drawable/reaction_divider"
            app:flexWrap="wrap"
            app:showDivider="middle"
            tools:background="#F0E0F0"
            tools:layout_height="40dp">

            <!-- ReactionButtons will be added here in the code -->
            <!--im.vector.app.features.reactions.widget.ReactionButton
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" /-->

        </com.google.android.flexbox.FlexboxLayout>
    </LinearLayout>

    <FrameLayout
        android:id="@+id/messageThreadSummaryContainer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/informationBottom"
        android:layout_toStartOf="@id/messageEndGuideline"
        android:layout_toEndOf="@id/messageStartGuideline"
        android:contentDescription="@string/room_threads_filter">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/messageThreadSummaryConstraintLayout"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="4dp"
            android:background="@drawable/rounded_rect_shape_8"
            android:contentDescription="@string/room_threads_filter"
            android:layoutDirection="locale"
            android:maxWidth="496dp"
            android:minWidth="144dp"
            android:paddingStart="13dp"
            android:paddingTop="8dp"
            android:paddingEnd="13dp"
            android:paddingBottom="8dp"
            android:visibility="gone"
            tools:visibility="visible">

            <include layout="@layout/view_thread_room_summary" />
        </androidx.constraintlayout.widget.ConstraintLayout>

    </FrameLayout>

</merge>