Quelle  notice_open_ballots.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">

    <com.google.android.material.card.MaterialCardView
        android:id="@+id/notice_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:clickable="false"
        android:orientation="vertical"
        android:outlineProvider="none"
        android:visibility="visible"
        app:cardBackgroundColor="?attr/colorSurfaceContainerHighest"
        app:cardCornerRadius="@dimen/cardview_border_radius"
        app:cardElevation="@dimen/notice_views_elevation"
        app:contentPaddingBottom="6dp"
        app:contentPaddingLeft="12dp"
        app:contentPaddingRight="8dp"
        app:contentPaddingTop="12dp"
        app:strokeWidth="0dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

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

                <TextView
                    style="@style/Threema.TextAppearance.BodyLarge"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="top|start"
                    android:layout_marginTop="0dp"
                    android:text="@string/ballot_open"
                    android:textColor="?attr/colorOnSurface" />

                <ImageView
                    android:id="@+id/button_cancel"
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:layout_gravity="top|end"
                    android:contentDescription="@string/ballot_window_hide"
                    android:foreground="@drawable/selector_avatar"
                    android:padding="2dp"
                    android:src="@drawable/ic_close"
                    app:tint="?attr/colorOnSurface" />

            </FrameLayout>

            <HorizontalScrollView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginEnd="4dp"
                android:fadingEdgeLength="40dp"
                android:requiresFadingEdge="horizontal"
                android:scrollbarSize="0dp"
                android:scrollbars="none">

                <com.google.android.material.chip.ChipGroup
                    android:id="@+id/chip_group"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:animateLayoutChanges="true"
                    app:chipSpacingHorizontal="4dp"
                    app:chipSpacingVertical="0dp"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:singleLine="true" />

            </HorizontalScrollView>

        </LinearLayout>

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

</merge>