lofi-android/app/src/main/res/layout/fragment_player.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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:background="@color/player_background"
    android:fillViewport="true">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="20dp"
        android:gravity="center_horizontal">

        <com.google.android.material.appbar.MaterialToolbar
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="@color/primary"
            app:title="@string/now_playing"
            app:titleTextColor="@color/on_primary"
            android:layout_marginBottom="24dp" />

        <androidx.cardview.widget.CardView
            android:layout_width="180dp"
            android:layout_height="180dp"
            app:cardCornerRadius="16dp"
            app:cardElevation="8dp"
            android:layout_marginBottom="20dp">

            <ImageView
                android:id="@+id/player_thumbnail"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="centerCrop"
                android:contentDescription="@null"
                tools:background="@color/accent" />
        </androidx.cardview.widget.CardView>

        <TextView
            android:id="@+id/player_channel_name"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@color/on_surface"
            android:textSize="22sp"
            android:textStyle="bold"
            android:gravity="center"
            android:layout_marginBottom="4dp"
            tools:text="Lofi Girl" />

        <TextView
            android:id="@+id/player_video_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@color/on_surface_variant"
            android:textSize="14sp"
            android:gravity="center"
            android:layout_marginBottom="8dp"
            tools:text="beats to relax/study to" />

        <TextView
            android:id="@+id/player_mode"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@color/accent"
            android:textSize="11sp"
            android:gravity="center"
            android:layout_marginBottom="24dp"
            tools:text="Direct Mode" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center"
            android:layout_marginBottom="24dp">

            <ImageButton
                android:id="@+id/btn_previous"
                android:layout_width="56dp"
                android:layout_height="56dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:contentDescription="@string/previous"
                android:src="@android:drawable/ic_media_previous"
                app:tint="@color/on_surface" />

            <ImageButton
                android:id="@+id/btn_play_pause"
                android:layout_width="72dp"
                android:layout_height="72dp"
                android:layout_marginStart="16dp"
                android:layout_marginEnd="16dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:contentDescription="@string/play"
                android:src="@android:drawable/ic_btn_now_playing"
                app:tint="@color/accent" />

            <ImageButton
                android:id="@+id/btn_next"
                android:layout_width="56dp"
                android:layout_height="56dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:contentDescription="@string/next"
                android:src="@android:drawable/ic_media_next"
                app:tint="@color/on_surface" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="center_vertical"
            android:layout_marginBottom="20dp">

            <ImageButton
                android:id="@+id/btn_volume"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:contentDescription="@string/volume"
                android:src="@android:drawable/ic_btn_volumelow"
                app:tint="@color/on_surface_variant" />

            <SeekBar
                android:id="@+id/volume_slider"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:progress="80"
                android:thumbTint="@color/accent"
                android:progressTint="@color/accent" />

            <TextView
                android:id="@+id/volume_value"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/on_surface_variant"
                android:textSize="12sp"
                android:layout_marginStart="8dp"
                tools:text="80%" />
        </LinearLayout>

        <com.google.android.material.progressindicator.LinearProgressIndicator
            android:id="@+id/player_progress"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="16dp"
            android:indeterminate="true"
            app:indicatorColor="@color/accent"
            app:trackColor="@color/card_background" />

        <TextView
            android:id="@+id/player_state"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@color/on_surface_variant"
            android:textSize="12sp"
            android:gravity="center"
            tools:text="Playing" />

        <LinearLayout
            android:id="@+id/error_container"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:gravity="center"
            android:visibility="gone"
            android:layout_marginTop="16dp">

            <TextView
                android:id="@+id/error_message"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/accent"
                android:textSize="14sp"
                android:gravity="center"
                tools:text="Error playing stream" />

            <Button
                android:id="@+id/btn_retry"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:text="Retry"
                style="@style/Widget.LofiRadio.Button" />
        </LinearLayout>
    </LinearLayout>
</ScrollView>