lockstep-player/app/src/main/res/layout/activity_now_playing.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Now Playing — View hierarchy for Android Studio Layout Editor / Design preview.
  The launcher still uses Compose (see MainActivity); wire this layout when adding a View-based screen.
-->
<androidx.constraintlayout.widget.ConstraintLayout 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="match_parent"
    android:paddingStart="@dimen/now_playing_horizontal_padding"
    android:paddingTop="@dimen/now_playing_vertical_padding"
    android:paddingEnd="@dimen/now_playing_horizontal_padding"
    android:paddingBottom="@dimen/now_playing_vertical_padding"
    tools:theme="@style/Theme.LockstepPlayer">

    <TextView
        android:id="@+id/text_track_title"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:ellipsize="end"
        android:maxLines="2"
        android:textAppearance="?attr/textAppearanceHeadlineSmall"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="Example Track Title" />

    <TextView
        android:id="@+id/text_track_artist"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"
        android:ellipsize="end"
        android:maxLines="1"
        android:textAppearance="?attr/textAppearanceBodyLarge"
        android:textColor="?attr/colorOnSurfaceVariant"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/text_track_title"
        tools:text="Example Artist" />

    <com.google.android.material.slider.Slider
        android:id="@+id/slider_progress"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:stepSize="0.01"
        android:value="0.35"
        android:valueFrom="0"
        android:valueTo="1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/text_track_artist" />

    <TextView
        android:id="@+id/text_position"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"
        android:textAppearance="?attr/textAppearanceLabelMedium"
        android:textColor="?attr/colorOnSurfaceVariant"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/slider_progress"
        tools:text="1:15" />

    <TextView
        android:id="@+id/text_duration"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"
        android:textAppearance="?attr/textAppearanceLabelMedium"
        android:textColor="?attr/colorOnSurfaceVariant"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/slider_progress"
        tools:text="3:35" />

    <androidx.constraintlayout.widget.Barrier
        android:id="@+id/barrier_after_times"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:barrierDirection="bottom"
        app:constraint_referenced_ids="text_position,text_duration" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/button_play_pause"
        android:layout_width="@dimen/now_playing_play_button_size"
        android:layout_height="@dimen/now_playing_play_button_size"
        android:layout_marginTop="12dp"
        android:background="?attr/selectableItemBackgroundBorderless"
        android:contentDescription="@string/cd_play_pause"
        android:padding="16dp"
        android:scaleType="fitCenter"
        app:layout_constraintEnd_toStartOf="@id/button_next"
        app:layout_constraintHorizontal_chainStyle="spread_inside"
        app:layout_constraintStart_toEndOf="@id/button_previous"
        app:layout_constraintTop_toBottomOf="@id/barrier_after_times"
        app:srcCompat="@drawable/ic_play_arrow_24" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/button_previous"
        android:layout_width="@dimen/now_playing_transport_button_size"
        android:layout_height="@dimen/now_playing_transport_button_size"
        android:background="?attr/selectableItemBackgroundBorderless"
        android:contentDescription="@string/cd_previous_track"
        android:padding="14dp"
        android:scaleType="fitCenter"
        app:layout_constraintBottom_toBottomOf="@id/button_play_pause"
        app:layout_constraintEnd_toStartOf="@id/button_play_pause"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@id/button_play_pause"
        app:srcCompat="@drawable/ic_skip_previous_24" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/button_next"
        android:layout_width="@dimen/now_playing_transport_button_size"
        android:layout_height="@dimen/now_playing_transport_button_size"
        android:background="?attr/selectableItemBackgroundBorderless"
        android:contentDescription="@string/cd_next_track"
        android:padding="14dp"
        android:scaleType="fitCenter"
        app:layout_constraintBottom_toBottomOf="@id/button_play_pause"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@id/button_play_pause"
        app:layout_constraintTop_toTopOf="@id/button_play_pause"
        app:srcCompat="@drawable/ic_skip_next_24" />

</androidx.constraintlayout.widget.ConstraintLayout>