fix(downloader): flutter downloader exception on desktop platform and too much width of TrackTile index no.

lib/components/Shared/TrackTile.dart

@@ -196,7 +196,7 @@ class TrackTile extends HookConsumerWidget {
               ),
             SizedBox(
               height: 20,
-              width: 25,
+              width: 15,
               child: Text(
                 (track.key + 1).toString(),
                 textAlign: TextAlign.center,

lib/components/Shared/TracksTableView.dart

@@ -39,6 +39,13 @@ class TracksTableView extends HookConsumerWidget {
     final selected = useState<List<String>>([]);
     final showCheck = useState<bool>(false);
 
+    final selectedTracks = useMemoized(
+      () => tracks.where(
+        (track) => selected.value.contains(track.id),
+      ),
+      [tracks],
+    );
+
     return SliverList(
       delegate: SliverChildListDelegate([
         if (heading != null) heading!,
@@ -101,9 +108,11 @@ class TracksTableView extends HookConsumerWidget {
                   PopupMenuItem(
                     enabled: selected.value.isNotEmpty,
                     child: Row(
-                      children: const [
+                      children: [
-                        Icon(Icons.file_download_outlined),
+                        const Icon(Icons.file_download_outlined),
-                        Text("Download"),
+                        Text(
+                          "Download ${selectedTracks.isNotEmpty ? "(${selectedTracks.length})" : ""}",
+                        ),
                       ],
                     ),
                     value: "download",
@@ -123,9 +132,6 @@ class TracksTableView extends HookConsumerWidget {
                       final queue = Queue(
                         delay: const Duration(seconds: 5),
                       );
-                      final selectedTracks = tracks.where(
-                        (track) => selected.value.contains(track.id),
-                      );
                       for (final selectedTrack in selectedTracks) {
                         queue.add(() async {
                           downloader.addToQueue(
@@ -136,6 +142,9 @@ class TracksTableView extends HookConsumerWidget {
                           );
                         });
                       }
+
+                      selected.value = [];
+                      showCheck.value = false;
                       await queue.onComplete;
                       break;
                     }

lib/main.dart

@@ -109,7 +109,7 @@ class _SpotubeState extends ConsumerState<Spotube> with WidgetsBindingObserver {
     super.initState();
     SharedPreferences.getInstance().then(((value) => localStorage = value));
     WidgetsBinding.instance.addObserver(this);
-    FlutterDownloader.registerCallback(downloadCallback);
+    if (kIsMobile) FlutterDownloader.registerCallback(downloadCallback);
   }
 
   @pragma('vm:entry-point')

lib/themes/dark-theme.dart

@@ -73,5 +73,12 @@ ThemeData darkTheme({
     cardColor: backgroundMaterialColor[800],
     canvasColor: backgroundMaterialColor[900],
     listTileTheme: const ListTileThemeData(horizontalTitleGap: 0),
+    checkboxTheme: CheckboxThemeData(
+      fillColor: MaterialStateProperty.resolveWith((states) {
+        if (states.contains(MaterialState.selected)) {
+          return accentMaterialColor[500];
+        }
+      }),
+    ),
   );
 }

lib/themes/light-theme.dart

@@ -97,5 +97,12 @@ ThemeData lightTheme({
     ),
     cardColor: backgroundMaterialColor[50],
     canvasColor: backgroundMaterialColor[50],
+    checkboxTheme: CheckboxThemeData(
+      fillColor: MaterialStateProperty.resolveWith((states) {
+        if (states.contains(MaterialState.selected)) {
+          return accentMaterialColor[500];
+        }
+      }),
+    ),
   );
 }