Plexamp Lite 1.14: Android 4.1 build with ExoPlayer, lyrics, home-screen widget

- One build per Android level, as in Tenda: build/PlexampLite.apk (Android 2.2+, versionCode 1508) and
  build/PlexampLite-api16.apk (Android 4.1+, 1516), from shared src/ plus platform/api8 or platform/api16.
- Android 4.1 build: ExoPlayer 2.18.7 behind a small Engine interface (gapless hand-over to read-ahead and
  downloaded files, a longer buffer, MediaPlayer fallback for tracks it can't decode), a notification and
  lock screen with art and buttons, a resizable widget, Holo, a menu button without a Menu key, metered networks.
  R8 shrinks ExoPlayer and Guava (tools/fetch_exoplayer.sh, tools/r8-rules.pro).
- Both builds: lyrics in Now Playing as in the Mac app (timed lyrics follow and seek), a home-screen widget,
  media play/pause keys, the moon icon drawn without clipPath.
- PlexampLite-noreport on the SD card stops play reports, for tests against a real server.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/com/minamp/plex/Library.java

@@ -6,6 +6,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Random;
 
+import com.minamp.net.Http;
 import com.minamp.util.Json;
 
 /** Paths into one music library section, plus the playback-URL decisions. */
@@ -150,6 +151,35 @@ public final class Library {
         if (t.partKey.length() == 0) throw new IOException(com.minamp.util.Tr.t("no_media", "Track has no playable media"));
     }
 
+    /** The track's lyrics text, "" when it has none: timed (LRC) if there are, else the longest plain text (a
+     *  local .txt can be a broken copy of LyricFind's). Blocking. */
+    public String lyrics(Item t) throws IOException {
+        List<Item> l = server.items("/library/metadata/" + t.ratingKey);   // lists leave the streams out
+        if (l.isEmpty()) return "";
+        Item full = l.get(0);
+        String best = "";
+        for (int i = 0; i < full.lyricsKeys.size(); i++) {
+            String text = lyricsStream(full.lyricsKeys.get(i));
+            if (i < full.lyricsTimed && text.trim().length() > 0) return text;
+            if (text.trim().length() > best.trim().length()) best = text;
+        }
+        return best;
+    }
+
+    private String lyricsStream(String key) throws IOException {
+        Http.Response r = Http.get(server.url(key), server.mediaHeaders(), 20000);
+        try {
+            if (r.code == 404) return "";
+            if (r.code != 200) throw new IOException("HTTP " + r.code);
+            byte[] d = r.readAll();
+            String text = new String(d, "UTF-8");
+            if (text.indexOf('\uFFFD') >= 0) text = new String(d, "ISO-8859-1");   // not UTF-8 after all
+            return text;
+        } finally {
+            r.close();
+        }
+    }
+
     public static void shuffle(List<Item> l) {
         Collections.shuffle(l, new Random());
     }
@@ -295,7 +325,12 @@ public final class Library {
 
     // ------------------------------------------------------------------ reporting
 
+    /** For testing against a real server: report no plays or positions (App sets it when the SD card has a file
+     *  named PlexampLite-noreport), so the account's play counts and history stay as they were. */
+    public static boolean noReport;
+
     public void timeline(Item t, String state, long timeMs) {
+        if (noReport) return;
         try {
             server.fetchQuiet("/:/timeline?ratingKey=" + t.ratingKey
                     + "&key=" + Plex.enc("/library/metadata/" + t.ratingKey)
@@ -305,6 +340,7 @@ public final class Library {
     }
 
     public void scrobble(Item t) {
+        if (noReport) return;
         try {
             server.fetchQuiet("/:/scrobble?identifier=com.plexapp.plugins.library&key=" + Plex.enc(t.ratingKey));
         } catch (Exception ignored) {}