Quelle  popup_diverse_emoji.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent">

    <com.google.android.material.card.MaterialCardView
        android:id="@+id/cardview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="@dimen/emoji_popup_cardview_margin_bottom"
        android:layout_marginTop="@dimen/emoji_popup_cardview_margin_top"
        android:layout_marginLeft="@dimen/emoji_popup_cardview_margin_horizontal"
        android:layout_marginRight="@dimen/emoji_popup_cardview_margin_horizontal"
        card_view:cardCornerRadius="6dp"
        card_view:cardElevation="4dp"
        card_view:strokeWidth="0dp">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/emoji_popup_image_margin"
            android:orientation="horizontal">

            <ImageView
                android:id="@+id/image_original"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:layout_marginRight="4dp"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

            <View
                android:layout_width="1dp"
                android:layout_height="match_parent"
                android:background="@color/file_picker_divider_color" />

            <ImageView
                android:id="@+id/image_type1"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:layout_marginLeft="4dp"
                android:layout_marginRight="4dp"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

            <ImageView
                android:id="@+id/image_type3"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:layout_marginRight="4dp"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

            <ImageView
                android:id="@+id/image_type4"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:layout_marginRight="4dp"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

            <ImageView
                android:id="@+id/image_type5"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:layout_marginRight="4dp"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

            <ImageView
                android:id="@+id/image_type6"
                android:layout_width="@dimen/emoji_picker_emoji_size"
                android:layout_height="@dimen/emoji_picker_emoji_size"
                android:background="@drawable/listitem_background_selector_noripple"
                android:clickable="true"
                android:focusable="false" />

        </LinearLayout>

    </com.google.android.material.card.MaterialCardView>

</FrameLayout>