App 2.45.0: now playing on the Overview

NowPlayingWatcher follows the head unit's media sessions (listening
only, never connecting to a player); NowPlaying picks what plays and
cleans the text. Tiles shows source, title, artist, cover and progress
under the battery; Halloween carves title and artist into the hill.
Settings: "Show what's playing", on by default. Nothing is logged or
sent.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

app/build.gradle

@@ -34,8 +34,8 @@ android {
         applicationId "com.stinnesbeck.nilsmg4"
         minSdk 27
         targetSdk 36
-        versionCode 159
-        versionName "2.44.0"
+        versionCode 160
+        versionName "2.45.0"
 
         // Nothing about the server ships in the APK: its URL and ingest token are entered in
         // the app's Server tab (ServerConfig), and the database is only reachable by the server.

app/src/main/java/com/evsuite/abrp/ClusterValues.java

@@ -23,4 +23,6 @@ final class ClusterValues {
     String tyreFl = "—", tyreFr = "—", tyreRl = "—", tyreRr = "—";
     /** Battery power over the last two minutes, oldest first, NaN where unread; null before any. */
     float[] powerTrail;
+    /** What plays ({@link NowPlaying}): the title, null when nothing does or it is off, and the artist or null. */
+    String songTitle, songArtist;
 }

app/src/main/java/com/evsuite/abrp/HalloweenView.java

@@ -27,7 +27,7 @@ import java.util.Locale;
  * of power, rising with it, in orange or, where it regenerated, green. Unread values show "—" and
  * light nothing. With music playing, the pumpkin's glow swells and its carving brightens on the
  * beat ({@link MusicTap}); colours and the embers keep their meaning, and with no music it burns as
- * before.
+ * before. What plays is carved into the foot of the hill ({@link NowPlaying}).
  *
  * The night sky is drawn once into a bitmap per size; only the rest goes over it. Bats, bubbles and
  * the ghost move (about 30 frames a second) only while the car moves and the view is on screen;
@@ -99,6 +99,7 @@ final class HalloweenView extends ClusterCanvasView {
         drawMoon(c, w, u);
         drawGhost(c, w, u);
         drawHill(c, w, h, u);
+        drawSong(c, w, h, u);
         drawEmbers(c, w, u);
         float pulse = music == null ? 0f : music.pulse();
         drawPumpkin(c, w, u, pulse);
@@ -276,6 +277,26 @@ final class HalloweenView extends ClusterCanvasView {
         }
     }
 
+    // ---------- What plays, carved into the hill ----------
+
+    private void drawSong(Canvas c, int w, int h, float u) {
+        if (v.songTitle == null) return;
+        text.setTypeface(thin);
+        text.setTextSize(20f * u);
+        float room = w * 0.44f;
+        String artist = v.songArtist == null ? "" : " — " + cut(v.songArtist, room / 2f);
+        // A long title gives way, so the artist stays.
+        String s = "♪ " + cut(v.songTitle, room - text.measureText("♪ " + artist)) + artist;
+        label(c, s, w / 2f, h - 12f * u, 20f * u, AccentColor.withAlpha(BONE, 0xC0), thin, Paint.Align.CENTER);
+    }
+
+    /** {@code s} cut with "…" to fit {@code room} in the text paint as set. */
+    private String cut(String s, float room) {
+        if (text.measureText(s) <= room) return s;
+        int fits = text.breakText(s, true, Math.max(0f, room - text.measureText("…")), null);
+        return s.substring(0, Math.max(0, fits)).trim() + "…";
+    }
+
     // ---------- The arch of embers: the power ----------
 
     private void drawEmbers(Canvas c, int w, float u) {

app/src/main/java/com/evsuite/abrp/MainActivity.java

@@ -78,6 +78,7 @@ public class MainActivity extends AppCompatActivity {
     /** The pane of each Overview style, by its {@link OverviewStyle} ordinal. */
     private View[] stylePanes;
     private MusicTap musicTap;
+    private NowPlayingWatcher nowPlaying;
     private View consumptionPane;
     private View chargingPane;
     /** Display, battery, charging price and Wi-Fi. */
@@ -197,6 +198,7 @@ public class MainActivity extends AppCompatActivity {
                 markCurrentPage(position);
                 applyOverviewFullScreen(position);
                 updateMusicTap();
+                updateNowPlaying();
             }
         });
         findViewById(R.id.edge_tab).setOnClickListener(v -> leaveOverviewFullScreen());
@@ -215,6 +217,8 @@ public class MainActivity extends AppCompatActivity {
 
     /** Whether the Overview hides the navigation (the button in the navigation's header). */
     static final String PREF_OVERVIEW_FULLSCREEN = "overview_fullscreen";
+    /** The Overview shows what plays (Tiles, Halloween); on by default. */
+    static final String PREF_NOW_PLAYING = "now_playing";
     /** The Halloween pumpkin's light follows the music; off by default, so the analyser stays off. */
     static final String PREF_MUSIC_LIGHT = "music_light";
 
@@ -359,6 +363,7 @@ public class MainActivity extends AppCompatActivity {
         visorView = new VisorView(this);
         HalloweenView halloweenView = new HalloweenView(this);
         musicTap = new MusicTap(this);
+        nowPlaying = new NowPlayingWatcher(this);
         halloweenView.setMusic(musicTap);
         java.util.Collections.addAll(canvasStyles, new MinimalView(this), terminalView,
                 new NixieView(this), new ChronographView(this), gridView, gridMapView, new TimeCircuitsView(this),
@@ -514,6 +519,7 @@ public class MainActivity extends AppCompatActivity {
         inFront = true;
         updateMapLocation();
         updateMusicTap();
+        updateNowPlaying();
     }
 
     @Override
@@ -564,6 +570,7 @@ public class MainActivity extends AppCompatActivity {
         inFront = false;
         updateMapLocation();
         updateMusicTap();
+        updateNowPlaying();
     }
 
     @Override
@@ -1225,6 +1232,12 @@ public class MainActivity extends AppCompatActivity {
         bindDriveMode();
         bindOverviewStyle();
         bindAccentColor();
+        SwitchMaterial showPlaying = settingsPane.findViewById(R.id.now_playing_switch);
+        showPlaying.setChecked(prefs.getBoolean(PREF_NOW_PLAYING, true));
+        showPlaying.setOnCheckedChangeListener((btn, checked) -> {
+            prefs.edit().putBoolean(PREF_NOW_PLAYING, checked).apply();
+            updateNowPlaying();
+        });
         SwitchMaterial musicLight = settingsPane.findViewById(R.id.music_light_switch);
         musicLight.setChecked(prefs.getBoolean(PREF_MUSIC_LIGHT, false));
         musicLight.setOnCheckedChangeListener((btn, checked) -> {
@@ -1767,6 +1780,57 @@ public class MainActivity extends AppCompatActivity {
         if (settingsPane != null) bindAccentColor();
         updateMapLocation();
         updateMusicTap();
+        updateNowPlaying();
+    }
+
+    /** The styles that show what plays. */
+    private static boolean showsNowPlaying(OverviewStyle style) {
+        return style == OverviewStyle.TILES || style == OverviewStyle.HALLOWEEN;
+    }
+
+    /** The media sessions are watched only while what plays can be seen, and the switch is on. */
+    private void updateNowPlaying() {
+        ViewPager2 pager = findViewById(R.id.content);
+        nowPlaying.setRunning(inFront && showsNowPlaying(overviewStyle())
+                && prefs.getBoolean(PREF_NOW_PLAYING, true)
+                && pager != null && pager.getCurrentItem() == 0);
+        if (!nowPlaying.isRunning()) showNowPlaying(null);
+    }
+
+    /** The Tiles tile: source, title, artist, a cover when there is one, and how far the song is. */
+    private void showNowPlaying(NowPlaying.Track t) {
+        if (vehiclePane == null) return;
+        View tile = vehiclePane.findViewById(R.id.now_playing_tile);
+        if (tile == null) return; // the narrow layout has no room for it
+        if (t == null) {
+            tile.setVisibility(View.INVISIBLE);
+            return;
+        }
+        tile.setVisibility(View.VISIBLE);
+        String source = getString(t.source == NowPlaying.Source.BLUETOOTH ? R.string.now_playing_bluetooth
+                : t.source == NowPlaying.Source.CARPLAY ? R.string.now_playing_carplay
+                : t.source == NowPlaying.Source.RADIO ? R.string.now_playing_radio : R.string.now_playing_other);
+        setIfChanged(vehiclePane.findViewById(R.id.now_playing_source),
+                t.playing ? source : getString(R.string.now_playing_paused, source));
+        setIfChanged(vehiclePane.findViewById(R.id.now_playing_title), t.title);
+        TextView artist = vehiclePane.findViewById(R.id.now_playing_artist);
+        setIfChanged(artist, t.subtitle == null ? "" : t.subtitle);
+        artist.setVisibility(t.subtitle == null ? View.GONE : View.VISIBLE);
+        android.widget.ImageView cover = vehiclePane.findViewById(R.id.now_playing_cover);
+        android.graphics.Bitmap art = nowPlaying.cover(t);
+        if (cover.getTag() != art) {
+            cover.setTag(art);
+            cover.setImageBitmap(art);
+            cover.setVisibility(art == null ? View.GONE : View.VISIBLE);
+        }
+        android.widget.ProgressBar bar = vehiclePane.findViewById(R.id.now_playing_progress);
+        float progress = t.progressAt(android.os.SystemClock.elapsedRealtime());
+        bar.setVisibility(progress < 0f ? View.INVISIBLE : View.VISIBLE);
+        if (progress >= 0f) bar.setProgress(Math.round(progress * bar.getMax()));
+    }
+
+    private static void setIfChanged(TextView view, CharSequence text) {
+        if (!android.text.TextUtils.equals(view.getText(), text)) view.setText(text);
     }
 
     /**
@@ -1840,6 +1904,9 @@ public class MainActivity extends AppCompatActivity {
         TextView note = settingsPane.findViewById(R.id.accent_note);
         note.setVisibility(style.usesAccent ? View.GONE : View.VISIBLE);
         note.setText(getString(R.string.accent_not_used, styleLabels()[style.ordinal()]));
+        int playing = showsNowPlaying(style) ? View.VISIBLE : View.GONE;
+        settingsPane.findViewById(R.id.now_playing_switch).setVisibility(playing);
+        settingsPane.findViewById(R.id.now_playing_hint).setVisibility(playing);
         int music = style == OverviewStyle.HALLOWEEN ? View.VISIBLE : View.GONE;
         settingsPane.findViewById(R.id.music_light_switch).setVisibility(music);
         settingsPane.findViewById(R.id.music_light_hint).setVisibility(music);
@@ -1925,6 +1992,10 @@ public class MainActivity extends AppCompatActivity {
         v.tyreRl = unit.format(s.getTirePressures().getRearLeftKpa());
         v.tyreRr = unit.format(s.getTirePressures().getRearRightKpa());
         v.powerTrail = cockpitTrace.snapshot();
+        NowPlaying.Track track = nowPlaying.isRunning() ? nowPlaying.current() : null;
+        v.songTitle = track == null ? null : track.title;
+        v.songArtist = track == null ? null : track.subtitle;
+        showNowPlaying(track);
         retroView.setValues(v);
         flowView.setValues(v);
         sciFiView.setValues(v);

app/src/main/java/com/evsuite/abrp/NowPlaying.java

@@ -0,0 +1,136 @@
+package com.evsuite.abrp;
+
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Pattern;
+
+/**
+ * What the Overview shows as playing, out of the media sessions the head unit publishes
+ * ({@link NowPlayingWatcher}): the session that plays, the one updated last when several do, and
+ * when none plays the one paused last. Sessions without any text are passed over (Bluetooth leaves
+ * an empty one behind when the phone stops). The text is cleaned: CarPlay's YouTube titles lose
+ * their trailing video ID, and the radio, whose title is the station and whose artist field is the
+ * station's own text, shows that text with the station below. Shown on screen only; nothing here
+ * is logged or sent. Android-free and unit-tested.
+ */
+final class NowPlaying {
+
+    enum Source { BLUETOOTH, CARPLAY, RADIO, OTHER }
+
+    /** android.media.session.PlaybackState's codes, mirrored to stay Android-free. */
+    static final int STATE_PAUSED = 2, STATE_PLAYING = 3, STATE_FAST_FORWARDING = 4, STATE_REWINDING = 5,
+            STATE_BUFFERING = 6, STATE_SKIPPING_TO_PREVIOUS = 9, STATE_SKIPPING_TO_NEXT = 10,
+            STATE_SKIPPING_TO_QUEUE_ITEM = 11;
+
+    private static final int MAX_TEXT = 200;
+    /** A YouTube video ID in brackets at the end of a title, as CarPlay passes them on. */
+    private static final Pattern VIDEO_ID = Pattern.compile("\\s*\\[[A-Za-z0-9_-]{11}\\]$");
+    private static final Pattern SPACES = Pattern.compile("\\s+");
+
+    private NowPlaying() {}
+
+    /** One media session as last seen. Times in the platform's elapsed-realtime milliseconds. */
+    static final class Session {
+        String packageName;
+        int state;
+        String title, artist;
+        /** -1 when the session says no position. */
+        long positionMs = -1;
+        long positionUpdatedAt;
+        float speed = 1f;
+        /** 0 when unknown (the radio). */
+        long durationMs;
+        /** A file or content URI for the cover, when the session names one (Bluetooth does). */
+        String artUri;
+    }
+
+    /** What to show. {@code subtitle} may be null; {@code session} is where it came from. */
+    static final class Track {
+        final Source source;
+        final String title, subtitle;
+        final boolean playing;
+        final Session session;
+
+        Track(Source source, String title, String subtitle, boolean playing, Session session) {
+            this.source = source;
+            this.title = title;
+            this.subtitle = subtitle;
+            this.playing = playing;
+            this.session = session;
+        }
+
+        /** Where the song is at {@code now}, or -1 when the session gives no position. */
+        long positionAt(long now) {
+            if (session.positionMs < 0) return -1;
+            long at = session.positionMs;
+            if (playing && session.positionUpdatedAt > 0 && now > session.positionUpdatedAt) {
+                at += (long) ((now - session.positionUpdatedAt) * session.speed);
+            }
+            if (session.durationMs > 0) at = Math.min(at, session.durationMs);
+            return Math.max(0, at);
+        }
+
+        /** How far through the song, from 0 to 1, or -1 without a length or position (the radio). */
+        float progressAt(long now) {
+            long at = positionAt(now);
+            if (at < 0 || session.durationMs <= 0) return -1f;
+            return Math.min(1f, at / (float) session.durationMs);
+        }
+    }
+
+    static Track pick(List<Session> sessions) {
+        Session best = null;
+        boolean bestPlaying = false;
+        if (sessions != null) {
+            for (Session s : sessions) {
+                if (s == null || (!playing(s.state) && s.state != STATE_PAUSED)) continue;
+                if (clean(s.title) == null && clean(s.artist) == null) continue;
+                boolean p = playing(s.state);
+                if (best == null || (p && !bestPlaying)
+                        || (p == bestPlaying && s.positionUpdatedAt > best.positionUpdatedAt)) {
+                    best = s;
+                    bestPlaying = p;
+                }
+            }
+        }
+        if (best == null) return null;
+        Source source = source(best.packageName);
+        String title = clean(best.title), artist = clean(best.artist);
+        if (source == Source.RADIO) {
+            // The station is the title; its own text (song, programme) comes as the artist.
+            if (artist != null) return new Track(source, artist, title, bestPlaying, best);
+            return new Track(source, title, null, bestPlaying, best);
+        }
+        if (title == null) return new Track(source, artist, null, bestPlaying, best);
+        return new Track(source, title, artist, bestPlaying, best);
+    }
+
+    static boolean playing(int state) {
+        switch (state) {
+            case STATE_PLAYING: case STATE_FAST_FORWARDING: case STATE_REWINDING: case STATE_BUFFERING:
+            case STATE_SKIPPING_TO_PREVIOUS: case STATE_SKIPPING_TO_NEXT: case STATE_SKIPPING_TO_QUEUE_ITEM:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /** Which source a session's app is: the ones seen on the owner's car, the rest as "other". */
+    static Source source(String packageName) {
+        if (packageName == null) return Source.OTHER;
+        String p = packageName.toLowerCase(Locale.ROOT);
+        if (p.equals("com.android.bluetooth")) return Source.BLUETOOTH;
+        if (p.contains("allgo") || p.contains("carplay")) return Source.CARPLAY;
+        if (p.contains("radio")) return Source.RADIO;
+        return Source.OTHER;
+    }
+
+    /** Trimmed, one line, without a trailing video ID, at most 200 characters; null when empty. */
+    static String clean(String text) {
+        if (text == null) return null;
+        String s = SPACES.matcher(text).replaceAll(" ").trim();
+        s = VIDEO_ID.matcher(s).replaceAll("").trim();
+        if (s.isEmpty()) return null;
+        return s.length() > MAX_TEXT ? s.substring(0, MAX_TEXT - 1) + "…" : s;
+    }
+}

app/src/main/java/com/evsuite/abrp/NowPlayingWatcher.java

@@ -0,0 +1,215 @@
+package com.evsuite.abrp;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.media.MediaMetadata;
+import android.media.session.MediaController;
+import android.media.session.MediaSessionManager;
+import android.media.session.PlaybackState;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Looper;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ * Watches the media sessions the head unit publishes (Bluetooth's, CarPlay's, the radio's) for the
+ * Overview's "now playing", the way the Logs tab's music-sources check reads them: through
+ * {@code MediaSessionManager}, which needs MEDIA_CONTENT_CONTROL (the car build has it as the
+ * system user). It only listens: no media browser service is connected to (that stopped the music
+ * in 2.42.0) and no command is sent. Each session's state and song are kept as the session reports
+ * changes, so reading {@link #current()} costs no call into another app. Runs only while
+ * MainActivity says so, on the main thread. Without the permission, or on any failure, there is
+ * simply nothing playing. Nothing it sees is logged.
+ */
+final class NowPlayingWatcher {
+
+    private static final int COVER_PX = 160;
+
+    private final Context app;
+    private final Handler main = new Handler(Looper.getMainLooper());
+    private final List<Watched> watched = new ArrayList<>();
+    private final ExecutorService coverLoader = Executors.newSingleThreadExecutor(r -> {
+        Thread t = new Thread(r, "now-playing-cover");
+        t.setDaemon(true);
+        return t;
+    });
+    private MediaSessionManager sessions;
+    private boolean running;
+    private Bitmap sessionCover;
+    /** The file cover asked for last and what came of it, from the loader thread. */
+    private volatile String coverUri;
+    private volatile Bitmap fileCover;
+
+    private final MediaSessionManager.OnActiveSessionsChangedListener changed = this::watch;
+
+    NowPlayingWatcher(Context context) {
+        app = context.getApplicationContext();
+    }
+
+    void setRunning(boolean run) {
+        if (run == running) return;
+        running = run;
+        if (!run) {
+            try {
+                if (sessions != null) sessions.removeOnActiveSessionsChangedListener(changed);
+            } catch (RuntimeException ignored) {
+                // Gone with the listener either way.
+            }
+            watch(null);
+            return;
+        }
+        try {
+            sessions = (MediaSessionManager) app.getSystemService(Context.MEDIA_SESSION_SERVICE);
+            if (sessions == null) return;
+            sessions.addOnActiveSessionsChangedListener(changed, null, main);
+            watch(sessions.getActiveSessions(null));
+        } catch (RuntimeException e) {
+            // No permission (the stable build) or no session service: nothing plays.
+            android.util.Log.w("NowPlaying", "Media sessions not readable: " + e.getClass().getSimpleName());
+        }
+    }
+
+    boolean isRunning() {
+        return running;
+    }
+
+    /** What plays now, or null. */
+    NowPlaying.Track current() {
+        List<NowPlaying.Session> seen = new ArrayList<>(watched.size());
+        for (Watched w : watched) seen.add(w.seen);
+        return NowPlaying.pick(seen);
+    }
+
+    /** The current track's cover, or null: the picture the session carries, else its file, once loaded. */
+    Bitmap cover(NowPlaying.Track track) {
+        if (track == null) return null;
+        for (Watched w : watched) {
+            if (w.seen == track.session && w.cover != null) return w.cover;
+        }
+        String uri = track.session.artUri;
+        if (uri == null) return null;
+        if (!uri.equals(coverUri)) {
+            coverUri = uri;
+            fileCover = null;
+            coverLoader.execute(() -> {
+                Bitmap b = load(uri);
+                if (uri.equals(coverUri)) fileCover = b;
+            });
+        }
+        return fileCover;
+    }
+
+    private void watch(List<MediaController> controllers) {
+        for (Watched w : watched) w.release();
+        watched.clear();
+        if (controllers == null || !running) return;
+        for (MediaController c : controllers) {
+            try {
+                watched.add(new Watched(c));
+            } catch (RuntimeException ignored) {
+                // A session that went away while being read.
+            }
+        }
+    }
+
+    /** One session: its last state and song, kept up to date by its callback. */
+    private final class Watched extends MediaController.Callback {
+        final MediaController controller;
+        final NowPlaying.Session seen = new NowPlaying.Session();
+        Bitmap cover;
+
+        Watched(MediaController c) {
+            controller = c;
+            seen.packageName = c.getPackageName();
+            onPlaybackStateChanged(c.getPlaybackState());
+            onMetadataChanged(c.getMetadata());
+            c.registerCallback(this, main);
+        }
+
+        void release() {
+            try {
+                controller.unregisterCallback(this);
+            } catch (RuntimeException ignored) {
+                // Already gone.
+            }
+        }
+
+        @Override
+        public void onPlaybackStateChanged(PlaybackState state) {
+            seen.state = state == null ? 0 : state.getState();
+            seen.positionMs = state == null ? -1 : state.getPosition();
+            seen.positionUpdatedAt = state == null ? 0 : state.getLastPositionUpdateTime();
+            seen.speed = state == null ? 1f : state.getPlaybackSpeed();
+        }
+
+        @Override
+        public void onMetadataChanged(MediaMetadata m) {
+            seen.title = text(m, MediaMetadata.METADATA_KEY_TITLE);
+            if (seen.title == null) seen.title = text(m, MediaMetadata.METADATA_KEY_DISPLAY_TITLE);
+            seen.artist = text(m, MediaMetadata.METADATA_KEY_ARTIST);
+            if (seen.artist == null) seen.artist = text(m, MediaMetadata.METADATA_KEY_DISPLAY_SUBTITLE);
+            seen.durationMs = m == null ? 0 : Math.max(0, m.getLong(MediaMetadata.METADATA_KEY_DURATION));
+            cover = picture(m);
+            seen.artUri = text(m, MediaMetadata.METADATA_KEY_ALBUM_ART_URI);
+            if (seen.artUri == null) seen.artUri = text(m, MediaMetadata.METADATA_KEY_ART_URI);
+        }
+
+        @Override
+        public void onSessionDestroyed() {
+            seen.state = 0;
+        }
+    }
+
+    private static String text(MediaMetadata m, String key) {
+        if (m == null) return null;
+        try {
+            CharSequence s = m.getText(key);
+            return s == null ? null : s.toString();
+        } catch (RuntimeException e) {
+            return null;
+        }
+    }
+
+    private static Bitmap picture(MediaMetadata m) {
+        if (m == null) return null;
+        for (String key : new String[] { MediaMetadata.METADATA_KEY_ALBUM_ART, MediaMetadata.METADATA_KEY_ART,
+                MediaMetadata.METADATA_KEY_DISPLAY_ICON }) {
+            try {
+                Bitmap b = m.getBitmap(key);
+                if (b != null && b.getWidth() > 1 && b.getHeight() > 1) return b;
+            } catch (RuntimeException ignored) {
+                // Try the next.
+            }
+        }
+        return null;
+    }
+
+    /** A cover file, made small; null when it cannot be read. Off the main thread. */
+    private Bitmap load(String uri) {
+        try {
+            Uri u = uri.startsWith("/") ? Uri.fromFile(new java.io.File(uri)) : Uri.parse(uri);
+            String scheme = u.getScheme();
+            if (!"file".equals(scheme) && !"content".equals(scheme)) return null;
+            BitmapFactory.Options size = new BitmapFactory.Options();
+            size.inJustDecodeBounds = true;
+            try (InputStream in = app.getContentResolver().openInputStream(u)) {
+                BitmapFactory.decodeStream(in, null, size);
+            }
+            if (size.outWidth <= 0 || size.outHeight <= 0) return null;
+            BitmapFactory.Options small = new BitmapFactory.Options();
+            small.inSampleSize = 1;
+            while (Math.max(size.outWidth, size.outHeight) / (small.inSampleSize * 2) >= COVER_PX) small.inSampleSize *= 2;
+            try (InputStream in = app.getContentResolver().openInputStream(u)) {
+                return BitmapFactory.decodeStream(in, null, small);
+            }
+        } catch (Exception | OutOfMemoryError e) {
+            return null;
+        }
+    }
+}

app/src/main/res/layout-w1000dp/pane_settings.xml

@@ -26,6 +26,9 @@
                     </LinearLayout>
                 </LinearLayout>
                 <TextView android:id="@+id/accent_note" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="4dp" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />
+                <!-- Only the styles that show what plays (Tiles, Halloween). -->
+                <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/now_playing_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_now_playing" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" android:visibility="gone" />
+                <TextView android:id="@+id/now_playing_hint" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_now_playing" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />
                 <!-- Only Halloween listens to the music. -->
                 <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/music_light_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_music_light" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" android:visibility="gone" />
                 <TextView android:id="@+id/music_light_hint" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_music_light" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />

app/src/main/res/layout-w1000dp/pane_vehicle.xml

@@ -31,7 +31,18 @@
             </LinearLayout>
         </LinearLayout>
         <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="16dp" android:orientation="horizontal" android:baselineAligned="false">
-            <Space android:layout_width="0dp" android:layout_height="1dp" android:layout_weight="1" android:layout_marginEnd="10dp" />
+            <!-- What plays (NowPlaying), in the slot under the battery; invisible when nothing does. -->
+            <LinearLayout android:id="@+id/now_playing_tile" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:layout_marginEnd="10dp" android:orientation="vertical" android:minHeight="112dp" android:padding="16dp" android:background="@drawable/bg_glass" android:visibility="invisible">
+                <TextView android:id="@+id/now_playing_source" android:layout_width="match_parent" android:layout_height="wrap_content" android:textAppearance="@style/Text.EV.Secondary" android:maxLines="1" android:ellipsize="end" />
+                <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="4dp" android:orientation="horizontal" android:gravity="center_vertical" android:baselineAligned="false">
+                    <ImageView android:id="@+id/now_playing_cover" android:layout_width="44dp" android:layout_height="44dp" android:layout_marginEnd="10dp" android:scaleType="centerCrop" android:importantForAccessibility="no" android:visibility="gone" />
+                    <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical">
+                        <TextView android:id="@+id/now_playing_title" android:layout_width="match_parent" android:layout_height="wrap_content" android:textAppearance="@style/Text.EV.Body" android:textSize="17sp" android:maxLines="1" android:ellipsize="end" />
+                        <TextView android:id="@+id/now_playing_artist" android:layout_width="match_parent" android:layout_height="wrap_content" android:textAppearance="@style/Text.EV.Secondary" android:textColor="?attr/evAccentLight" android:textSize="16sp" android:maxLines="1" android:ellipsize="end" />
+                    </LinearLayout>
+                </LinearLayout>
+                <ProgressBar android:id="@+id/now_playing_progress" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="4dp" android:layout_marginTop="6dp" android:max="1000" android:progressTint="?attr/evAccent" android:progressBackgroundTint="?attr/evAccentTrack" android:visibility="invisible" />
+            </LinearLayout>
             <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:layout_marginEnd="10dp" android:orientation="vertical" android:minHeight="112dp" android:padding="16dp" android:background="@drawable/bg_glass">
                 <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/vehicle_row_energy_trip" android:textAppearance="@style/Text.EV.Secondary" />
                 <TextView android:id="@+id/vehicle_energy_trip" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/no_value" android:layout_marginTop="6dp" android:textAppearance="@style/Text.EV.Metric.Compact" android:gravity="end" android:fontFeatureSettings="tnum" android:maxLines="1" android:autoSizeTextType="uniform" android:autoSizeMinTextSize="18sp" android:autoSizeMaxTextSize="28sp" android:autoSizeStepGranularity="1sp" />

app/src/main/res/layout/pane_settings.xml

@@ -17,6 +17,9 @@
                 <com.google.android.material.textfield.MaterialAutoCompleteTextView android:id="@+id/accent_choices" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:inputType="none" android:textSize="20sp" app:simpleItemLayout="@layout/dropdown_item" />
             </com.google.android.material.textfield.TextInputLayout>
             <TextView android:id="@+id/accent_note" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="4dp" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />
+            <!-- Only the styles that show what plays (Tiles, Halloween). -->
+            <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/now_playing_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_now_playing" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" android:visibility="gone" />
+            <TextView android:id="@+id/now_playing_hint" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_now_playing" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />
             <!-- Only Halloween listens to the music. -->
             <com.google.android.material.switchmaterial.SwitchMaterial android:id="@+id/music_light_switch" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="72dp" android:text="@string/label_music_light" android:textAppearance="@style/Text.EV.Body" android:paddingTop="8dp" android:paddingBottom="8dp" app:useMaterialThemeColors="true" app:thumbTint="@color/switch_thumb" app:trackTint="@color/switch_track" android:textColor="@color/ev_text_primary" android:visibility="gone" />
             <TextView android:id="@+id/music_light_hint" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hint_music_light" android:textAppearance="@style/Text.EV.Secondary" android:visibility="gone" />

app/src/main/res/values/strings.xml

@@ -129,6 +129,13 @@
     <string name="overview_style_scifi">Sci-fi</string>
     <string name="overview_style_cartoon">Cartoon</string>
     <string name="overview_style_mg">MG</string>
+    <string name="label_now_playing">Show what\'s playing</string>
+    <string name="hint_now_playing">Title and artist from Bluetooth, CarPlay or the radio. Shown here only, never sent.</string>
+    <string name="now_playing_bluetooth">Bluetooth</string>
+    <string name="now_playing_carplay">CarPlay</string>
+    <string name="now_playing_radio">Radio</string>
+    <string name="now_playing_other">Media</string>
+    <string name="now_playing_paused">%1$s · paused</string>
     <string name="label_music_light">Pumpkin light follows the music</string>
     <string name="hint_music_light">Flares on the kick drum over Bluetooth or CarPlay, not the radio. Levels only, no sound kept.</string>
     <string name="accent_not_used">%1$s has its own colours, and the app takes them on. To change the accent colour, pick a style that uses it.</string>

app/src/test/java/com/evsuite/abrp/NowPlayingTest.java

@@ -0,0 +1,138 @@
+package com.evsuite.abrp;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+import java.util.Collections;
+
+import org.junit.Test;
+
+public class NowPlayingTest {
+
+    private static NowPlaying.Session session(String pkg, int state, String title, String artist, long updatedAt) {
+        NowPlaying.Session s = new NowPlaying.Session();
+        s.packageName = pkg;
+        s.state = state;
+        s.title = title;
+        s.artist = artist;
+        s.positionUpdatedAt = updatedAt;
+        return s;
+    }
+
+    @Test
+    public void nothingToShow() {
+        assertNull(NowPlaying.pick(null));
+        assertNull(NowPlaying.pick(Collections.emptyList()));
+        // Bluetooth's empty session after the phone stopped, and one that only connects.
+        assertNull(NowPlaying.pick(Arrays.asList(
+                session("com.android.bluetooth", 1, "", "", 5),
+                session("com.android.car.radio", 8, "Radio", null, 6),
+                session("com.android.bluetooth", NowPlaying.STATE_PLAYING, " ", null, 7))));
+    }
+
+    @Test
+    public void whatPlaysWinsOverWhatIsPaused() {
+        // As on the car on 2026-10-28: CarPlay paused, Bluetooth playing.
+        NowPlaying.Track t = NowPlaying.pick(Arrays.asList(
+                session("com.allgo.remoteui.mediabrowserservice", NowPlaying.STATE_PAUSED, "A Mix", "Bass Bangers", 900),
+                session("com.android.bluetooth", NowPlaying.STATE_PLAYING, "Paramount", "Mark Petrie & Andrew Prahlow", 100)));
+        assertEquals(NowPlaying.Source.BLUETOOTH, t.source);
+        assertEquals("Paramount", t.title);
+        assertEquals("Mark Petrie & Andrew Prahlow", t.subtitle);
+        assertTrue(t.playing);
+    }
+
+    @Test
+    public void ofTwoPlayingTheNewerWins() {
+        NowPlaying.Track t = NowPlaying.pick(Arrays.asList(
+                session("com.android.bluetooth", NowPlaying.STATE_PLAYING, "Old", null, 100),
+                session("com.allgo.remoteui.mediabrowserservice", NowPlaying.STATE_BUFFERING, "New", null, 200)));
+        assertEquals(NowPlaying.Source.CARPLAY, t.source);
+        assertEquals("New", t.title);
+    }
+
+    @Test
+    public void withNothingPlayingThePausedOneShows() {
+        NowPlaying.Track t = NowPlaying.pick(Arrays.asList(
+                session("com.android.bluetooth", NowPlaying.STATE_PAUSED, "Earlier", null, 100),
+                session("com.allgo.remoteui.mediabrowserservice", NowPlaying.STATE_PAUSED, "Later", null, 300)));
+        assertEquals("Later", t.title);
+        assertFalse(t.playing);
+    }
+
+    @Test
+    public void theRadioShowsItsTextWithTheStationBelow() {
+        NowPlaying.Track t = NowPlaying.pick(Collections.singletonList(
+                session("com.saicmotor.radio", NowPlaying.STATE_PLAYING, "Brillux Radio", "BLIND MELON - NO RAIN", 1)));
+        assertEquals(NowPlaying.Source.RADIO, t.source);
+        assertEquals("BLIND MELON - NO RAIN", t.title);
+        assertEquals("Brillux Radio", t.subtitle);
+        NowPlaying.Track station = NowPlaying.pick(Collections.singletonList(
+                session("com.saicmotor.radio", NowPlaying.STATE_PLAYING, "Brillux Radio", "", 1)));
+        assertEquals("Brillux Radio", station.title);
+        assertNull(station.subtitle);
+        assertEquals(-1f, station.progressAt(5), 0f);
+    }
+
+    @Test
+    public void textIsCleaned() {
+        assertEquals("A Letter to the Past (A Seasonal Feels Mix) Ft. Porter Robinson & Friends By SAINT",
+                NowPlaying.clean("A Letter to the Past (A Seasonal Feels Mix) Ft. Porter Robinson & Friends By SAINT [X4nayMeMBuQ]"));
+        assertEquals("Live [Remastered 2011]", NowPlaying.clean("Live [Remastered 2011]"));
+        assertEquals("two lines", NowPlaying.clean("  two\n  lines "));
+        assertNull(NowPlaying.clean("   "));
+        assertNull(NowPlaying.clean(null));
+        StringBuilder longText = new StringBuilder();
+        for (int i = 0; i < 300; i++) longText.append('x');
+        assertEquals(200, NowPlaying.clean(longText.toString()).length());
+    }
+
+    @Test
+    public void onlyAnArtistStillShows() {
+        NowPlaying.Track t = NowPlaying.pick(Collections.singletonList(
+                session("com.example.player", NowPlaying.STATE_PLAYING, null, "Someone", 1)));
+        assertEquals(NowPlaying.Source.OTHER, t.source);
+        assertEquals("Someone", t.title);
+        assertNull(t.subtitle);
+    }
+
+    @Test
+    public void thePositionRunsOnWhilePlayingAndStopsAtTheEnd() {
+        NowPlaying.Session s = session("com.android.bluetooth", NowPlaying.STATE_PLAYING, "Paramount", "M", 10_000);
+        s.positionMs = 3_000;
+        s.durationMs = 215_000;
+        NowPlaying.Track t = NowPlaying.pick(Collections.singletonList(s));
+        assertEquals(3_000, t.positionAt(10_000));
+        assertEquals(8_000, t.positionAt(15_000));
+        assertEquals(215_000, t.positionAt(10_000_000));
+        assertEquals(1f, t.progressAt(10_000_000), 0f);
+        assertEquals(8_000 / 215_000f, t.progressAt(15_000), 1e-6f);
+    }
+
+    @Test
+    public void aPausedPositionStaysPut() {
+        NowPlaying.Session s = session("com.android.bluetooth", NowPlaying.STATE_PAUSED, "Paramount", null, 10_000);
+        s.positionMs = 3_000;
+        s.durationMs = 215_000;
+        assertEquals(3_000, NowPlaying.pick(Collections.singletonList(s)).positionAt(99_000));
+    }
+
+    @Test
+    public void noPositionNoBar() {
+        NowPlaying.Session s = session("com.android.bluetooth", NowPlaying.STATE_PLAYING, "Paramount", null, 10_000);
+        s.durationMs = 215_000;
+        assertEquals(-1f, NowPlaying.pick(Collections.singletonList(s)).progressAt(20_000), 0f);
+    }
+
+    @Test
+    public void sourcesAreKnownByTheirApps() {
+        assertEquals(NowPlaying.Source.BLUETOOTH, NowPlaying.source("com.android.bluetooth"));
+        assertEquals(NowPlaying.Source.CARPLAY, NowPlaying.source("com.allgo.remoteui.mediabrowserservice"));
+        assertEquals(NowPlaying.Source.RADIO, NowPlaying.source("com.saicmotor.radio"));
+        assertEquals(NowPlaying.Source.OTHER, NowPlaying.source("com.android.music"));
+        assertEquals(NowPlaying.Source.OTHER, NowPlaying.source(null));
+    }
+}