Merge pull request #208 from ImranR98/dev

Tiny bugfix + increment version

README.md

@@ -1,4 +1,4 @@
-# ![Obtainium Icon](./android/app/src/main/res/drawable/ic_notification.png) Obtainium
+# ![Obtainium Icon](./android/app/src/main/res/drawable-mdpi/ic_launcher_foreground.png) Obtainium
 
 Get Android App Updates Directly From the Source.
 

android/app/src/main/AndroidManifest.xml

@@ -51,4 +51,7 @@
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/>
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28"/>
 </manifest>

assets/translations/de.json

@@ -209,6 +209,8 @@
     "addCategory": "Kategorie hinzufügen",
     "label": "Bezeichnung",
     "language": "Sprache",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "Zu viele Anfragen (Rate begrenzt) - versuchen Sie es in {} Minute erneut",
         "other": "Zu viele Anfragen (Rate begrenzt) - versuchen Sie es in {} Minuten erneut"

assets/translations/en.json

@@ -209,6 +209,8 @@
     "addCategory": "Add Category",
     "label": "Label",
     "language": "Language",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "Too many requests (rate limited) - try again in {} minute",
         "other": "Too many requests (rate limited) - try again in {} minutes"

assets/translations/hu.json

@@ -59,7 +59,7 @@
     "byX": "{} által",
     "percentProgress": "Folyamat: {}%",
     "pleaseWait": "Kis türelmet",
-    "updateAvailable": "Frissítés elérhető",
+    "updateAvailable": "Frissítés érhető el",
     "estimateInBracketsShort": "(Becsült)",
     "notInstalled": "Nem telepített",
     "estimateInBrackets": "(Becslés)",
@@ -70,11 +70,11 @@
     "removeSelectedApps": "Távolítsa el a kiválasztott appokat",
     "updateX": "Frissítés: {}",
     "installX": "Telepítés: {}",
-    "markXTrackOnlyAsUpdated": "Jelölje meg: {}\n(Csak nyomon követhető)\nas Frissítve",
+    "markXTrackOnlyAsUpdated": "Jelölje meg: {}\n(Csak nyomon követhető)\nmint Frissített",
     "changeX": "Változás {}",
     "installUpdateApps": "Appok telepítése/frissítése",
     "installUpdateSelectedApps": "Telepítse/frissítse a kiválasztott appokat",
-    "onlyWorksWithNonEVDApps": "Csak azoknál az alkalmazásoknál működik, amelyek telepítési állapota nem észlelhető automatikusan (nem gyakori).",
+    "onlyWorksWithNonEVDApps": "Csak azoknál az alkalmazásoknál működik, amelyek telepítési állapota nem észlelhető autom. (nem gyakori).",
     "markXSelectedAppsAsUpdated": "Megjelöl {} kiválasztott alkalmazást frissítettként?",
     "no": "Nem",
     "yes": "Igen",
@@ -86,8 +86,8 @@
     "shareSelectedAppURLs": "Ossza meg a kiválasztott app URL címeit",
     "resetInstallStatus": "Telepítési állapot visszaállítása",
     "more": "További",
-    "removeOutdatedFilter": "Távolítsa el az elavult alkalmazásszűrőt",
-    "showOutdatedOnly": "Csak az elavult alkalmazások megjelenítése",
+    "removeOutdatedFilter": "Távolítsa el az elavult app szűrőt",
+    "showOutdatedOnly": "Csak az elavult appok megjelenítése",
     "filter": "Szűrő",
     "filterActive": "Szűrő *",
     "filterApps": "Appok szűrése",
@@ -126,11 +126,11 @@
     "appSortBy": "App rendezés...",
     "authorName": "Szerző/Név",
     "nameAuthor": "Név/Szerző",
-    "asAdded": "Mint hozzáadott",
+    "asAdded": "Mint Hozzáadott",
     "appSortOrder": "Appok rendezése",
     "ascending": "Emelkedő",
     "descending": "Csökkenő",
-    "bgUpdateCheckInterval": "Háttérfrissítés ellenőrzési időköz",
+    "bgUpdateCheckInterval": "Háttérfrissítés ellenőrzés időköze",
     "neverManualOnly": "Soha – csak manuális",
     "appearance": "Megjelenés",
     "showWebInAppView": "Forrás megjelenítése az Appok nézetben",
@@ -155,14 +155,14 @@
     "noNewUpdates": "Nincsenek új frissítések.",
     "xHasAnUpdate": "A(z) {} frissítést kapott.",
     "appsUpdated": "Alkalmazások frissítve",
-    "appsUpdatedNotifDescription": "Értesíti a felhasználót, hogy egy vagy több app frissítése történt a háttérben",
+    "appsUpdatedNotifDescription": "Értesíti a felhasználót, hogy egy/több app frissítése megtörtént a háttérben",
     "xWasUpdatedToY": "{} frissítve a következőre: {}.",
     "errorCheckingUpdates": "Hiba a frissítések keresésekor",
     "errorCheckingUpdatesNotifDescription": "Értesítés, amely akkor jelenik meg, ha a háttérbeli frissítések ellenőrzése sikertelen",
     "appsRemoved": "Alkalmazások eltávolítva",
     "appsRemovedNotifDescription": "Értesíti a felhasználót egy vagy több alkalmazás eltávolításáról a betöltésük során fellépő hibák miatt",
     "xWasRemovedDueToErrorY": "A(z) {} a következő hiba miatt lett eltávolítva: {}",
-    "completeAppInstallation": "Teljes alkalmazástelepítés",
+    "completeAppInstallation": "Teljes app telepítés",
     "obtainiumMustBeOpenToInstallApps": "Az Obtainiumnak megnyitva kell lennie az alkalmazások telepítéséhez",
     "completeAppInstallationNotifDescription": "Megkéri a felhasználót, hogy térjen vissza az Obtainiumhoz, hogy befejezze az alkalmazás telepítését",
     "checkingForUpdates": "Frissítések keresése",
@@ -198,7 +198,7 @@
     "downloadingX": "{} letöltés",
     "downloadNotifDescription": "Értesíti a felhasználót az app letöltésének előrehaladásáról",
     "noAPKFound": "Nem található APK",
-    "noVersionDetection": "Nincs verzióérzékelés",
+    "noVersionDetection": "Nincs verzió érzékelés",
     "categorize": "Kategorizálás",
     "categories": "Kategóriák",
     "category": "Kategória",
@@ -207,6 +207,9 @@
     "categoryDeleteWarning": "A(z) {} összes app kategorizálatlan állapotba kerül.",
     "addCategory": "Új kategória",
     "label": "Címke",
+    "language": "Language",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "Túl sok kérés (korlátozott arány) – próbálja újra {} perc múlva",
         "other": "Túl sok kérés (korlátozott arány) – próbálja újra {} perc múlva"

assets/translations/it.json

@@ -209,6 +209,8 @@
     "addCategory": "Aggiungi categoria",
     "label": "Etichetta",
     "language": "Lingua",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "Troppe richieste (traffico limitato) - riprova tra {} minuto",
         "other": "Troppe richieste (traffico limitato) - riprova tra {} minuti"

assets/translations/ja.json

@@ -209,6 +209,8 @@
     "addCategory": "カテゴリを追加",
     "label": "ラベル",
     "language": "言語",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "リクエストが多すぎます（レート制限）- {}分後に再試行してください",
         "other": "リクエストが多すぎます（レート制限）- {}分後に再試行してください"

assets/translations/zh.json

@@ -209,6 +209,8 @@
     "addCategory": "Add Category",
     "label": "Label",
     "language": "Language",
+    "storagePermissionDenied": "Storage permission denied",
+    "selectedCategorizeWarning": "This will replace any existing category settings for the selected Apps.",
     "tooManyRequestsTryAgainInMinutes": {
         "one": "请求过多 (API 限制) - 在 {} 分钟后重试",
         "other": "请求过多 (API 限制) - 在 {} 分钟后重试"

lib/components/generated_form.dart

@@ -91,6 +91,7 @@ class GeneratedFormTagInput extends GeneratedFormItem {
   late bool singleSelect;
   late WrapAlignment alignment;
   late String emptyMessage;
+  late bool showLabelWhenNotEmpty;
   GeneratedFormTagInput(String key,
       {String label = 'Input',
       List<Widget> belowWidgets = const [],
@@ -100,7 +101,8 @@ class GeneratedFormTagInput extends GeneratedFormItem {
       this.deleteConfirmationMessage,
       this.singleSelect = false,
       this.alignment = WrapAlignment.start,
-      this.emptyMessage = 'Input'})
+      this.emptyMessage = 'Input',
+      this.showLabelWhenNotEmpty = true})
       : super(key,
             label: label,
             belowWidgets: belowWidgets,
@@ -140,11 +142,11 @@ class _GeneratedFormState extends State<GeneratedForm> {
     for (int r = 0; r < widget.items.length; r++) {
       for (int i = 0; i < widget.items[r].length; i++) {
         if (formInputs[r][i] is TextFormField) {
-          valid = valid &&
-              ((formInputs[r][i].key as GlobalKey<FormFieldState>)
-                      .currentState
-                      ?.isValid ??
-                  false);
+          var fieldState =
+              (formInputs[r][i].key as GlobalKey<FormFieldState>).currentState;
+          if (fieldState != null) {
+            valid = valid && fieldState.isValid;
+          }
         }
       }
     }
@@ -152,7 +154,7 @@ class _GeneratedFormState extends State<GeneratedForm> {
   }
 
   // Generates a random light color
-// Courtesy of ChatGPT 😭 (with a bugfix 🥳)
+  // Courtesy of ChatGPT 😭 (with a bugfix 🥳)
   Color generateRandomLightColor() {
     // Create a random number generator
     final Random random = Random();
@@ -259,157 +261,185 @@ class _GeneratedFormState extends State<GeneratedForm> {
             ],
           );
         } else if (widget.items[r][e] is GeneratedFormTagInput) {
-          formInputs[r][e] = Wrap(
-            alignment: (widget.items[r][e] as GeneratedFormTagInput).alignment,
-            crossAxisAlignment: WrapCrossAlignment.center,
-            children: [
-              (values[widget.items[r][e].key]
-                              as Map<String, MapEntry<int, bool>>?)
-                          ?.isEmpty ==
-                      true
-                  ? Text(
-                      (widget.items[r][e] as GeneratedFormTagInput)
-                          .emptyMessage,
-                      style: const TextStyle(fontWeight: FontWeight.bold),
-                    )
-                  : const SizedBox.shrink(),
-              ...(values[widget.items[r][e].key]
-                          as Map<String, MapEntry<int, bool>>?)
-                      ?.entries
-                      .map((e2) {
-                    return Padding(
-                        padding: const EdgeInsets.symmetric(horizontal: 4),
-                        child: ChoiceChip(
-                          label: Text(e2.key),
-                          backgroundColor: Color(e2.value.key).withAlpha(50),
-                          selectedColor: Color(e2.value.key),
-                          visualDensity: VisualDensity.compact,
-                          selected: e2.value.value,
-                          onSelected: (value) {
-                            setState(() {
-                              (values[widget.items[r][e].key] as Map<String,
-                                      MapEntry<int, bool>>)[e2.key] =
-                                  MapEntry(
-                                      (values[widget.items[r][e].key] as Map<
-                                              String,
-                                              MapEntry<int, bool>>)[e2.key]!
-                                          .key,
-                                      value);
-                              if ((widget.items[r][e] as GeneratedFormTagInput)
-                                      .singleSelect &&
-                                  value == true) {
-                                for (var key in (values[widget.items[r][e].key]
-                                        as Map<String, MapEntry<int, bool>>)
-                                    .keys) {
-                                  if (key != e2.key) {
-                                    (values[widget.items[r][e].key] as Map<
-                                        String,
-                                        MapEntry<int,
-                                            bool>>)[key] = MapEntry(
+          formInputs[r][e] =
+              Column(crossAxisAlignment: CrossAxisAlignment.stretch, children: [
+            if ((values[widget.items[r][e].key]
+                            as Map<String, MapEntry<int, bool>>?)
+                        ?.isNotEmpty ==
+                    true &&
+                (widget.items[r][e] as GeneratedFormTagInput)
+                    .showLabelWhenNotEmpty)
+              Column(
+                crossAxisAlignment:
+                    (widget.items[r][e] as GeneratedFormTagInput).alignment ==
+                            WrapAlignment.center
+                        ? CrossAxisAlignment.center
+                        : CrossAxisAlignment.stretch,
+                children: [
+                  Text(widget.items[r][e].label),
+                  const SizedBox(
+                    height: 8,
+                  ),
+                ],
+              ),
+            Wrap(
+              alignment:
+                  (widget.items[r][e] as GeneratedFormTagInput).alignment,
+              crossAxisAlignment: WrapCrossAlignment.center,
+              children: [
+                (values[widget.items[r][e].key]
+                                as Map<String, MapEntry<int, bool>>?)
+                            ?.isEmpty ==
+                        true
+                    ? Text(
+                        (widget.items[r][e] as GeneratedFormTagInput)
+                            .emptyMessage,
+                      )
+                    : const SizedBox.shrink(),
+                ...(values[widget.items[r][e].key]
+                            as Map<String, MapEntry<int, bool>>?)
+                        ?.entries
+                        .map((e2) {
+                      return Padding(
+                          padding: const EdgeInsets.symmetric(horizontal: 4),
+                          child: ChoiceChip(
+                            label: Text(e2.key),
+                            backgroundColor: Color(e2.value.key).withAlpha(50),
+                            selectedColor: Color(e2.value.key),
+                            visualDensity: VisualDensity.compact,
+                            selected: e2.value.value,
+                            onSelected: (value) {
+                              setState(() {
+                                (values[widget.items[r][e].key] as Map<String,
+                                        MapEntry<int, bool>>)[e2.key] =
+                                    MapEntry(
                                         (values[widget.items[r][e].key] as Map<
                                                 String,
-                                                MapEntry<int, bool>>)[key]!
+                                                MapEntry<int, bool>>)[e2.key]!
                                             .key,
-                                        false);
+                                        value);
+                                if ((widget.items[r][e]
+                                            as GeneratedFormTagInput)
+                                        .singleSelect &&
+                                    value == true) {
+                                  for (var key in (values[
+                                              widget.items[r][e].key]
+                                          as Map<String, MapEntry<int, bool>>)
+                                      .keys) {
+                                    if (key != e2.key) {
+                                      (values[widget.items[r][e].key] as Map<
+                                              String,
+                                              MapEntry<int, bool>>)[key] =
+                                          MapEntry(
+                                              (values[widget.items[r][e].key]
+                                                      as Map<
+                                                          String,
+                                                          MapEntry<int,
+                                                              bool>>)[key]!
+                                                  .key,
+                                              false);
+                                    }
                                   }
                                 }
-                              }
-                              someValueChanged();
-                            });
+                                someValueChanged();
+                              });
+                            },
+                          ));
+                    }) ??
+                    [const SizedBox.shrink()],
+                (values[widget.items[r][e].key]
+                                as Map<String, MapEntry<int, bool>>?)
+                            ?.values
+                            .where((e) => e.value)
+                            .isNotEmpty ==
+                        true
+                    ? Padding(
+                        padding: const EdgeInsets.symmetric(horizontal: 4),
+                        child: IconButton(
+                          onPressed: () {
+                            fn() {
+                              setState(() {
+                                var temp = values[widget.items[r][e].key]
+                                    as Map<String, MapEntry<int, bool>>;
+                                temp.removeWhere((key, value) => value.value);
+                                values[widget.items[r][e].key] = temp;
+                                someValueChanged();
+                              });
+                            }
+
+                            if ((widget.items[r][e] as GeneratedFormTagInput)
+                                    .deleteConfirmationMessage !=
+                                null) {
+                              var message =
+                                  (widget.items[r][e] as GeneratedFormTagInput)
+                                      .deleteConfirmationMessage!;
+                              showDialog<Map<String, dynamic>?>(
+                                  context: context,
+                                  builder: (BuildContext ctx) {
+                                    return GeneratedFormModal(
+                                        title: message.key,
+                                        message: message.value,
+                                        items: const []);
+                                  }).then((value) {
+                                if (value != null) {
+                                  fn();
+                                }
+                              });
+                            } else {
+                              fn();
+                            }
                           },
-                        ));
-                  }) ??
-                  [const SizedBox.shrink()],
-              (values[widget.items[r][e].key]
-                              as Map<String, MapEntry<int, bool>>?)
-                          ?.values
-                          .where((e) => e.value)
-                          .isNotEmpty ==
-                      true
-                  ? Padding(
-                      padding: const EdgeInsets.symmetric(horizontal: 4),
-                      child: IconButton(
-                        onPressed: () {
-                          fn() {
+                          icon: const Icon(Icons.remove),
+                          visualDensity: VisualDensity.compact,
+                          tooltip: tr('remove'),
+                        ))
+                    : const SizedBox.shrink(),
+                Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 4),
+                    child: IconButton(
+                      onPressed: () {
+                        showDialog<Map<String, dynamic>?>(
+                            context: context,
+                            builder: (BuildContext ctx) {
+                              return GeneratedFormModal(
+                                  title: widget.items[r][e].label,
+                                  items: [
+                                    [
+                                      GeneratedFormTextField('label',
+                                          label: tr('label'))
+                                    ]
+                                  ]);
+                            }).then((value) {
+                          String? label = value?['label'];
+                          if (label != null) {
                             setState(() {
                               var temp = values[widget.items[r][e].key]
-                                  as Map<String, MapEntry<int, bool>>;
-                              temp.removeWhere((key, value) => value.value);
-                              values[widget.items[r][e].key] = temp;
-                              someValueChanged();
-                            });
-                          }
-
-                          if ((widget.items[r][e] as GeneratedFormTagInput)
-                                  .deleteConfirmationMessage !=
-                              null) {
-                            var message =
-                                (widget.items[r][e] as GeneratedFormTagInput)
-                                    .deleteConfirmationMessage!;
-                            showDialog<Map<String, dynamic>?>(
-                                context: context,
-                                builder: (BuildContext ctx) {
-                                  return GeneratedFormModal(
-                                      title: message.key,
-                                      message: message.value,
-                                      items: const []);
-                                }).then((value) {
-                              if (value != null) {
-                                fn();
+                                  as Map<String, MapEntry<int, bool>>?;
+                              temp ??= {};
+                              if (temp[label] == null) {
+                                var singleSelect = (widget.items[r][e]
+                                        as GeneratedFormTagInput)
+                                    .singleSelect;
+                                var someSelected = temp.entries
+                                    .where((element) => element.value.value)
+                                    .isNotEmpty;
+                                temp[label] = MapEntry(
+                                    generateRandomLightColor().value,
+                                    !(someSelected && singleSelect));
+                                values[widget.items[r][e].key] = temp;
+                                someValueChanged();
                               }
                             });
-                          } else {
-                            fn();
                           }
-                        },
-                        icon: const Icon(Icons.remove),
-                        visualDensity: VisualDensity.compact,
-                        tooltip: tr('remove'),
-                      ))
-                  : const SizedBox.shrink(),
-              Padding(
-                  padding: const EdgeInsets.symmetric(horizontal: 4),
-                  child: IconButton(
-                    onPressed: () {
-                      showDialog<Map<String, dynamic>?>(
-                          context: context,
-                          builder: (BuildContext ctx) {
-                            return GeneratedFormModal(
-                                title: widget.items[r][e].label,
-                                items: [
-                                  [
-                                    GeneratedFormTextField('label',
-                                        label: tr('label'))
-                                  ]
-                                ]);
-                          }).then((value) {
-                        String? label = value?['label'];
-                        if (label != null) {
-                          setState(() {
-                            var temp = values[widget.items[r][e].key]
-                                as Map<String, MapEntry<int, bool>>?;
-                            temp ??= {};
-                            var singleSelect =
-                                (widget.items[r][e] as GeneratedFormTagInput)
-                                    .singleSelect;
-                            var someSelected = temp.entries
-                                .where((element) => element.value.value)
-                                .isNotEmpty;
-                            temp[label] = MapEntry(
-                                generateRandomLightColor().value,
-                                !(someSelected && singleSelect));
-                            values[widget.items[r][e].key] = temp;
-                            someValueChanged();
-                          });
-                        }
-                      });
-                    },
-                    icon: const Icon(Icons.add),
-                    visualDensity: VisualDensity.compact,
-                    tooltip: tr('add'),
-                  )),
-            ],
-          );
+                        });
+                      },
+                      icon: const Icon(Icons.add),
+                      visualDensity: VisualDensity.compact,
+                      tooltip: tr('add'),
+                    )),
+              ],
+            )
+          ]);
         }
       }
     }

lib/components/generated_form_modal.dart

@@ -9,12 +9,16 @@ class GeneratedFormModal extends StatefulWidget {
       required this.title,
       required this.items,
       this.initValid = false,
-      this.message = ''});
+      this.message = '',
+      this.additionalWidgets = const [],
+      this.singleNullReturnButton});
 
   final String title;
   final String message;
   final List<List<GeneratedFormItem>> items;
   final bool initValid;
+  final List<Widget> additionalWidgets;
+  final String? singleNullReturnButton;
 
   @override
   State<GeneratedFormModal> createState() => _GeneratedFormModalState();
@@ -54,24 +58,29 @@ class _GeneratedFormModalState extends State<GeneratedFormModal> {
                   this.valid = valid;
                 });
               }
-            })
+            }),
+        if (widget.additionalWidgets.isNotEmpty) ...widget.additionalWidgets
       ]),
       actions: [
         TextButton(
             onPressed: () {
               Navigator.of(context).pop(null);
             },
-            child: Text(tr('cancel'))),
-        TextButton(
-            onPressed: !valid
-                ? null
-                : () {
-                    if (valid) {
-                      HapticFeedback.selectionClick();
-                      Navigator.of(context).pop(values);
-                    }
-                  },
-            child: Text(tr('continue')))
+            child: Text(widget.singleNullReturnButton == null
+                ? tr('cancel')
+                : widget.singleNullReturnButton!)),
+        widget.singleNullReturnButton == null
+            ? TextButton(
+                onPressed: !valid
+                    ? null
+                    : () {
+                        if (valid) {
+                          HapticFeedback.selectionClick();
+                          Navigator.of(context).pop(values);
+                        }
+                      },
+                child: Text(tr('continue')))
+            : const SizedBox.shrink()
       ],
     );
   }

lib/custom_errors.dart

@@ -13,13 +13,10 @@ class ObtainiumError {
   }
 }
 
-class RateLimitError {
+class RateLimitError extends ObtainiumError {
   late int remainingMinutes;
-  RateLimitError(this.remainingMinutes);
-
-  @override
-  String toString() =>
-      plural('tooManyRequestsTryAgainInMinutes', remainingMinutes);
+  RateLimitError(this.remainingMinutes)
+      : super(plural('tooManyRequestsTryAgainInMinutes', remainingMinutes));
 }
 
 class InvalidURLError extends ObtainiumError {

lib/main.dart

@@ -21,7 +21,7 @@ import 'package:easy_localization/src/easy_localization_controller.dart';
 // ignore: implementation_imports
 import 'package:easy_localization/src/localization.dart';
 
-const String currentVersion = '0.9.8';
+const String currentVersion = '0.9.12';
 const String currentReleaseTag =
     'v$currentVersion-beta'; // KEEP THIS IN SYNC WITH GITHUB RELEASES
 

lib/pages/add_app.dart

@@ -8,6 +8,7 @@ import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/main.dart';
 import 'package:obtainium/pages/app.dart';
 import 'package:obtainium/pages/import_export.dart';
+import 'package:obtainium/pages/settings.dart';
 import 'package:obtainium/providers/apps_provider.dart';
 import 'package:obtainium/providers/settings_provider.dart';
 import 'package:obtainium/providers/source_provider.dart';
@@ -29,6 +30,7 @@ class _AddAppPageState extends State<AddAppPage> {
   AppSource? pickedSource;
   Map<String, dynamic> additionalSettings = {};
   bool additionalSettingsValid = true;
+  List<String> pickedCategories = [];
 
   @override
   Widget build(BuildContext context) {
@@ -37,25 +39,19 @@ class _AddAppPageState extends State<AddAppPage> {
 
     changeUserInput(String input, bool valid, bool isBuilding) {
       userInput = input;
-      fn() {
-        var source = valid ? sourceProvider.getSource(userInput) : null;
-        if (pickedSource.runtimeType != source.runtimeType) {
-          pickedSource = source;
-          additionalSettings = source != null
-              ? getDefaultValuesFromFormItems(
-                  source.combinedAppSpecificSettingFormItems)
-              : {};
-          additionalSettingsValid = source != null
-              ? !sourceProvider.ifRequiredAppSpecificSettingsExist(source)
-              : true;
-        }
-      }
-
-      if (isBuilding) {
-        fn();
-      } else {
+      if (!isBuilding) {
         setState(() {
-          fn();
+          var source = valid ? sourceProvider.getSource(userInput) : null;
+          if (pickedSource.runtimeType != source.runtimeType) {
+            pickedSource = source;
+            additionalSettings = source != null
+                ? getDefaultValuesFromFormItems(
+                    source.combinedAppSpecificSettingFormItems)
+                : {};
+            additionalSettingsValid = source != null
+                ? !sourceProvider.ifRequiredAppSpecificSettingsExist(source)
+                : true;
+          }
         });
       }
     }
@@ -131,6 +127,7 @@ class _AddAppPageState extends State<AddAppPage> {
           if (app.additionalSettings['trackOnly'] == true) {
             app.installedVersion = app.latestVersion;
           }
+          app.categories = pickedCategories;
           await appsProvider.saveApps([app]);
 
           return app;
@@ -238,7 +235,9 @@ class _AddAppPageState extends State<AddAppPage> {
                                     ]
                                   ],
                                   onValueChanges: (values, valid, isBuilding) {
-                                    if (values.isNotEmpty && valid) {
+                                    if (values.isNotEmpty &&
+                                        valid &&
+                                        !isBuilding) {
                                       setState(() {
                                         searchQuery =
                                             values['searchSomeSources']!.trim();
@@ -289,7 +288,7 @@ class _AddAppPageState extends State<AddAppPage> {
                                           if (selectedUrls != null &&
                                               selectedUrls.isNotEmpty) {
                                             changeUserInput(
-                                                selectedUrls[0], true, true);
+                                                selectedUrls[0], true, false);
                                             addApp(resetUserInputAfter: true);
                                           }
                                         }).catchError((e) {
@@ -299,9 +298,7 @@ class _AddAppPageState extends State<AddAppPage> {
                                 child: Text(tr('search')))
                           ],
                         ),
-                      if (pickedSource != null &&
-                          (pickedSource!
-                              .combinedAppSpecificSettingFormItems.isNotEmpty))
+                      if (pickedSource != null)
                         Column(
                           crossAxisAlignment: CrossAxisAlignment.stretch,
                           children: [
@@ -328,6 +325,18 @@ class _AddAppPageState extends State<AddAppPage> {
                                     });
                                   }
                                 }),
+                            Column(
+                              children: [
+                                const SizedBox(
+                                  height: 16,
+                                ),
+                                CategoryEditorSelector(
+                                    alignment: WrapAlignment.start,
+                                    onSelected: (categories) {
+                                      pickedCategories = categories;
+                                    }),
+                              ],
+                            ),
                           ],
                         )
                       else

lib/pages/app.dart

@@ -1,7 +1,6 @@
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:obtainium/components/generated_form.dart';
 import 'package:obtainium/components/generated_form_modal.dart';
 import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/main.dart';
@@ -35,7 +34,6 @@ class _AppPageState extends State<AppPage> {
       });
     }
 
-    var categories = settingsProvider.categories;
     var sourceProvider = SourceProvider();
     AppInMemory? app = appsProvider.apps[widget.appId];
     var source = app != null ? sourceProvider.getSource(app.app.url) : null;
@@ -44,6 +42,106 @@ class _AppPageState extends State<AppPage> {
       getUpdate(app.app.id);
     }
     var trackOnly = app?.app.additionalSettings['trackOnly'] == true;
+
+    var infoColumn = Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        GestureDetector(
+            onTap: () {
+              if (app?.app.url != null) {
+                launchUrlString(app?.app.url ?? '',
+                    mode: LaunchMode.externalApplication);
+              }
+            },
+            child: Text(
+              app?.app.url ?? '',
+              textAlign: TextAlign.center,
+              style: const TextStyle(
+                  decoration: TextDecoration.underline,
+                  fontStyle: FontStyle.italic,
+                  fontSize: 12),
+            )),
+        const SizedBox(
+          height: 32,
+        ),
+        Text(
+          tr('latestVersionX', args: [app?.app.latestVersion ?? tr('unknown')]),
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.bodyLarge,
+        ),
+        Text(
+          '${tr('installedVersionX', args: [
+                app?.app.installedVersion ?? tr('none')
+              ])}${trackOnly ? ' ${tr('estimateInBrackets')}\n\n${tr('xIsTrackOnly', args: [
+                  tr('app')
+                ])}' : ''}',
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.bodyLarge,
+        ),
+        const SizedBox(
+          height: 32,
+        ),
+        Text(
+          tr('lastUpdateCheckX', args: [
+            app?.app.lastUpdateCheck == null
+                ? tr('never')
+                : '\n${app?.app.lastUpdateCheck?.toLocal()}'
+          ]),
+          textAlign: TextAlign.center,
+          style: const TextStyle(fontStyle: FontStyle.italic, fontSize: 12),
+        ),
+        const SizedBox(
+          height: 48,
+        ),
+        CategoryEditorSelector(
+            alignment: WrapAlignment.center,
+            preselected:
+                app?.app.categories != null ? app!.app.categories.toSet() : {},
+            onSelected: (categories) {
+              if (app != null) {
+                app.app.categories = categories;
+                appsProvider.saveApps([app.app]);
+              }
+            }),
+      ],
+    );
+
+    var fullInfoColumn = Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        const SizedBox(height: 150),
+        app?.installedInfo != null
+            ? Row(mainAxisAlignment: MainAxisAlignment.center, children: [
+                Image.memory(
+                  app!.installedInfo!.icon!,
+                  height: 150,
+                  gaplessPlayback: true,
+                )
+              ])
+            : Container(),
+        const SizedBox(
+          height: 25,
+        ),
+        Text(
+          app?.installedInfo?.name ?? app?.app.name ?? tr('app'),
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.displayLarge,
+        ),
+        Text(
+          tr('byX', args: [app?.app.author ?? tr('unknown')]),
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.headlineMedium,
+        ),
+        const SizedBox(
+          height: 32,
+        ),
+        infoColumn,
+        const SizedBox(height: 150)
+      ],
+    );
+
     return Scaffold(
       appBar: settingsProvider.showAppWebpage ? AppBar() : null,
       backgroundColor: Theme.of(context).colorScheme.surface,
@@ -72,105 +170,8 @@ class _AppPageState extends State<AppPage> {
                   : Container()
               : CustomScrollView(
                   slivers: [
-                    SliverFillRemaining(
-                        child: Column(
-                      mainAxisAlignment: MainAxisAlignment.center,
-                      crossAxisAlignment: CrossAxisAlignment.stretch,
-                      children: [
-                        app?.installedInfo != null
-                            ? Row(
-                                mainAxisAlignment: MainAxisAlignment.center,
-                                children: [
-                                    Image.memory(
-                                      app!.installedInfo!.icon!,
-                                      height: 150,
-                                      gaplessPlayback: true,
-                                    )
-                                  ])
-                            : Container(),
-                        const SizedBox(
-                          height: 25,
-                        ),
-                        Text(
-                          app?.installedInfo?.name ??
-                              app?.app.name ??
-                              tr('app'),
-                          textAlign: TextAlign.center,
-                          style: Theme.of(context).textTheme.displayLarge,
-                        ),
-                        Text(
-                          tr('byX', args: [app?.app.author ?? tr('unknown')]),
-                          textAlign: TextAlign.center,
-                          style: Theme.of(context).textTheme.headlineMedium,
-                        ),
-                        const SizedBox(
-                          height: 32,
-                        ),
-                        GestureDetector(
-                            onTap: () {
-                              if (app?.app.url != null) {
-                                launchUrlString(app?.app.url ?? '',
-                                    mode: LaunchMode.externalApplication);
-                              }
-                            },
-                            child: Text(
-                              app?.app.url ?? '',
-                              textAlign: TextAlign.center,
-                              style: const TextStyle(
-                                  decoration: TextDecoration.underline,
-                                  fontStyle: FontStyle.italic,
-                                  fontSize: 12),
-                            )),
-                        const SizedBox(
-                          height: 32,
-                        ),
-                        Text(
-                          tr('latestVersionX',
-                              args: [app?.app.latestVersion ?? tr('unknown')]),
-                          textAlign: TextAlign.center,
-                          style: Theme.of(context).textTheme.bodyLarge,
-                        ),
-                        Text(
-                          '${tr('installedVersionX', args: [
-                                app?.app.installedVersion ?? tr('none')
-                              ])}${trackOnly ? ' ${tr('estimateInBrackets')}\n\n${tr('xIsTrackOnly', args: [
-                                  tr('app')
-                                ])}' : ''}',
-                          textAlign: TextAlign.center,
-                          style: Theme.of(context).textTheme.bodyLarge,
-                        ),
-                        const SizedBox(
-                          height: 32,
-                        ),
-                        Text(
-                          tr('lastUpdateCheckX', args: [
-                            app?.app.lastUpdateCheck == null
-                                ? tr('never')
-                                : '\n${app?.app.lastUpdateCheck?.toLocal()}'
-                          ]),
-                          textAlign: TextAlign.center,
-                          style: const TextStyle(
-                              fontStyle: FontStyle.italic, fontSize: 12),
-                        ),
-                        const SizedBox(
-                          height: 48,
-                        ),
-                        CategoryEditorSelector(
-                            alignment: WrapAlignment.center,
-                            singleSelect: true,
-                            preselected: app?.app.category != null
-                                ? {app!.app.category!}
-                                : {},
-                            onSelected: (categories) {
-                              if (app != null) {
-                                app.app.category = categories.isNotEmpty
-                                    ? categories[0]
-                                    : null;
-                                appsProvider.saveApps([app.app]);
-                              }
-                            })
-                      ],
-                    )),
+                    SliverToBoxAdapter(
+                        child: Column(children: [fullInfoColumn])),
                   ],
                 ),
           onRefresh: () async {
@@ -289,6 +290,31 @@ class _AppPageState extends State<AppPage> {
                                     },
                               tooltip: tr('additionalOptions'),
                               icon: const Icon(Icons.settings)),
+                        if (app != null && settingsProvider.showAppWebpage)
+                          IconButton(
+                              onPressed: () {
+                                showDialog(
+                                    context: context,
+                                    builder: (BuildContext ctx) {
+                                      return AlertDialog(
+                                        scrollable: true,
+                                        content: infoColumn,
+                                        title: Text(
+                                            '${app.app.name} ${tr('byX', args: [
+                                              app.app.author
+                                            ])}'),
+                                        actions: [
+                                          TextButton(
+                                              onPressed: () {
+                                                Navigator.of(context).pop();
+                                              },
+                                              child: Text(tr('continue')))
+                                        ],
+                                      );
+                                    });
+                              },
+                              icon: const Icon(Icons.more_horiz),
+                              tooltip: tr('more')),
                         const SizedBox(width: 16.0),
                         Expanded(
                             child: ElevatedButton(

lib/pages/apps.dart

@@ -7,6 +7,7 @@ import 'package:obtainium/components/generated_form_modal.dart';
 import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/main.dart';
 import 'package:obtainium/pages/app.dart';
+import 'package:obtainium/pages/settings.dart';
 import 'package:obtainium/providers/apps_provider.dart';
 import 'package:obtainium/providers/settings_provider.dart';
 import 'package:obtainium/providers/source_provider.dart';
@@ -22,7 +23,8 @@ class AppsPage extends StatefulWidget {
 }
 
 class AppsPageState extends State<AppsPage> {
-  AppsFilter? filter;
+  AppsFilter filter = AppsFilter();
+  final AppsFilter neutralFilter = AppsFilter();
   var updatesOnlyFilter =
       AppsFilter(includeUptodate: false, includeNonInstalled: false);
   Set<App> selectedApps = {};
@@ -54,7 +56,7 @@ class AppsPageState extends State<AppsPage> {
     var settingsProvider = context.watch<SettingsProvider>();
     var sortedApps = appsProvider.apps.values.toList();
     var currentFilterIsUpdatesOnly =
-        filter?.isIdenticalTo(updatesOnlyFilter) ?? false;
+        filter.isIdenticalTo(updatesOnlyFilter, settingsProvider);
 
     selectedApps = selectedApps
         .where((element) => sortedApps.map((e) => e.app).contains(element))
@@ -70,45 +72,44 @@ class AppsPageState extends State<AppsPage> {
       });
     }
 
-    if (filter != null) {
-      sortedApps = sortedApps.where((app) {
-        if (app.app.installedVersion == app.app.latestVersion &&
-            !(filter!.includeUptodate)) {
-          return false;
-        }
-        if (app.app.installedVersion == null &&
-            !(filter!.includeNonInstalled)) {
-          return false;
-        }
-        if (filter!.nameFilter.isNotEmpty || filter!.authorFilter.isNotEmpty) {
-          List<String> nameTokens = filter!.nameFilter
-              .split(' ')
-              .where((element) => element.trim().isNotEmpty)
-              .toList();
-          List<String> authorTokens = filter!.authorFilter
-              .split(' ')
-              .where((element) => element.trim().isNotEmpty)
-              .toList();
+    sortedApps = sortedApps.where((app) {
+      if (app.app.installedVersion == app.app.latestVersion &&
+          !(filter.includeUptodate)) {
+        return false;
+      }
+      if (app.app.installedVersion == null && !(filter.includeNonInstalled)) {
+        return false;
+      }
+      if (filter.nameFilter.isNotEmpty || filter.authorFilter.isNotEmpty) {
+        List<String> nameTokens = filter.nameFilter
+            .split(' ')
+            .where((element) => element.trim().isNotEmpty)
+            .toList();
+        List<String> authorTokens = filter.authorFilter
+            .split(' ')
+            .where((element) => element.trim().isNotEmpty)
+            .toList();
 
-          for (var t in nameTokens) {
-            var name = app.installedInfo?.name ?? app.app.name;
-            if (!name.toLowerCase().contains(t.toLowerCase())) {
-              return false;
-            }
-          }
-          for (var t in authorTokens) {
-            if (!app.app.author.toLowerCase().contains(t.toLowerCase())) {
-              return false;
-            }
+        for (var t in nameTokens) {
+          var name = app.installedInfo?.name ?? app.app.name;
+          if (!name.toLowerCase().contains(t.toLowerCase())) {
+            return false;
           }
         }
-        if (filter!.categoryFilter.isNotEmpty &&
-            filter!.categoryFilter != app.app.category) {
-          return false;
+        for (var t in authorTokens) {
+          if (!app.app.author.toLowerCase().contains(t.toLowerCase())) {
+            return false;
+          }
         }
-        return true;
-      }).toList();
-    }
+      }
+      if (filter.categoryFilter.isNotEmpty &&
+          filter.categoryFilter
+              .intersection(app.app.categories.toSet())
+              .isEmpty) {
+        return false;
+      }
+      return true;
+    }).toList();
 
     sortedApps.sort((a, b) {
       var nameA = a.installedInfo?.name ?? a.app.name;
@@ -226,14 +227,21 @@ class AppsPageState extends State<AppsPage> {
               String? changesUrl = SourceProvider()
                   .getSource(sortedApps[index].app.url)
                   .changeLogPageFromStandardUrl(sortedApps[index].app.url);
+              var transparent = const Color.fromARGB(0, 0, 0, 0).value;
               return Container(
                   decoration: BoxDecoration(
                       border: Border.symmetric(
                           vertical: BorderSide(
-                              width: 3,
-                              color: Color(settingsProvider.categories[
-                                      sortedApps[index].app.category] ??
-                                  const Color.fromARGB(0, 0, 0, 0).value)))),
+                              width: 4,
+                              color: Color(
+                                  sortedApps[index].app.categories.isNotEmpty
+                                      ? settingsProvider.categories[
+                                              sortedApps[index]
+                                                  .app
+                                                  .categories
+                                                  .first] ??
+                                          transparent
+                                      : transparent)))),
                   child: ListTile(
                     tileColor: sortedApps[index].app.pinned
                         ? Colors.grey.withOpacity(0.1)
@@ -339,21 +347,32 @@ class AppsPageState extends State<AppsPage> {
       persistentFooterButtons: [
         Row(
           children: [
-            IconButton(
-                onPressed: () {
-                  selectedApps.isEmpty
-                      ? selectThese(sortedApps.map((e) => e.app).toList())
-                      : clearSelected();
-                },
-                icon: Icon(
-                  selectedApps.isEmpty
-                      ? Icons.select_all_outlined
-                      : Icons.deselect_outlined,
-                  color: Theme.of(context).colorScheme.primary,
-                ),
-                tooltip: selectedApps.isEmpty
-                    ? tr('selectAll')
-                    : tr('deselectN', args: [selectedApps.length.toString()])),
+            selectedApps.isEmpty
+                ? IconButton(
+                    visualDensity: VisualDensity.compact,
+                    onPressed: () {
+                      selectThese(sortedApps.map((e) => e.app).toList());
+                    },
+                    icon: Icon(
+                      Icons.select_all_outlined,
+                      color: Theme.of(context).colorScheme.primary,
+                    ),
+                    tooltip: tr('selectAll'))
+                : TextButton.icon(
+                    style:
+                        const ButtonStyle(visualDensity: VisualDensity.compact),
+                    onPressed: () {
+                      selectedApps.isEmpty
+                          ? selectThese(sortedApps.map((e) => e.app).toList())
+                          : clearSelected();
+                    },
+                    icon: Icon(
+                      selectedApps.isEmpty
+                          ? Icons.select_all_outlined
+                          : Icons.deselect_outlined,
+                      color: Theme.of(context).colorScheme.primary,
+                    ),
+                    label: Text(selectedApps.length.toString())),
             const VerticalDivider(),
             Expanded(
                 child: Row(
@@ -486,6 +505,75 @@ class AppsPageState extends State<AppsPage> {
                     icon: const Icon(
                       Icons.file_download_outlined,
                     )),
+                selectedApps.isEmpty
+                    ? const SizedBox()
+                    : IconButton(
+                        visualDensity: VisualDensity.compact,
+                        onPressed: () async {
+                          try {
+                            Set<String>? preselected;
+                            var showPrompt = false;
+                            for (var element in selectedApps) {
+                              var currentCats = element.categories.toSet();
+                              if (preselected == null) {
+                                preselected = currentCats;
+                              } else {
+                                if (!settingsProvider.setEqual(
+                                    currentCats, preselected)) {
+                                  showPrompt = true;
+                                  break;
+                                }
+                              }
+                            }
+                            var cont = true;
+                            if (showPrompt) {
+                              cont = await showDialog<Map<String, dynamic>?>(
+                                      context: context,
+                                      builder: (BuildContext ctx) {
+                                        return GeneratedFormModal(
+                                          title: tr('categorize'),
+                                          items: const [],
+                                          initValid: true,
+                                          message:
+                                              tr('selectedCategorizeWarning'),
+                                        );
+                                      }) !=
+                                  null;
+                            }
+                            if (cont) {
+                              await showDialog<Map<String, dynamic>?>(
+                                  context: context,
+                                  builder: (BuildContext ctx) {
+                                    return GeneratedFormModal(
+                                      title: tr('categorize'),
+                                      items: const [],
+                                      initValid: true,
+                                      singleNullReturnButton: tr('continue'),
+                                      additionalWidgets: [
+                                        CategoryEditorSelector(
+                                          preselected: !showPrompt
+                                              ? preselected ?? {}
+                                              : {},
+                                          showLabelWhenNotEmpty: false,
+                                          onSelected: (categories) {
+                                            appsProvider
+                                                .saveApps(selectedApps.map((e) {
+                                              e.categories = categories;
+                                              return e;
+                                            }).toList());
+                                          },
+                                        )
+                                      ],
+                                    );
+                                  });
+                            }
+                          } catch (err) {
+                            showError(err, context);
+                          }
+                        },
+                        tooltip: tr('categorize'),
+                        icon: const Icon(Icons.category_outlined),
+                      ),
                 selectedApps.isEmpty
                     ? const SizedBox()
                     : IconButton(
@@ -663,7 +751,7 @@ class AppsPageState extends State<AppsPage> {
               onPressed: () {
                 setState(() {
                   if (currentFilterIsUpdatesOnly) {
-                    filter = null;
+                    filter = AppsFilter();
                   } else {
                     filter = updatesOnlyFilter;
                   }
@@ -682,10 +770,15 @@ class AppsPageState extends State<AppsPage> {
             appsProvider.apps.isEmpty
                 ? const SizedBox()
                 : TextButton.icon(
+                    style:
+                        const ButtonStyle(visualDensity: VisualDensity.compact),
                     label: Text(
-                      filter == null ? tr('filter') : tr('filterActive'),
+                      filter.isIdenticalTo(neutralFilter, settingsProvider)
+                          ? tr('filter')
+                          : tr('filterActive'),
                       style: TextStyle(
-                          fontWeight: filter == null
+                          fontWeight: filter.isIdenticalTo(
+                                  neutralFilter, settingsProvider)
                               ? FontWeight.normal
                               : FontWeight.bold),
                     ),
@@ -693,44 +786,48 @@ class AppsPageState extends State<AppsPage> {
                       showDialog<Map<String, dynamic>?>(
                           context: context,
                           builder: (BuildContext ctx) {
-                            var vals = filter == null
-                                ? AppsFilter().toValuesMap()
-                                : filter!.toValuesMap();
+                            var vals = filter.toFormValuesMap();
                             return GeneratedFormModal(
-                                title: tr('filterApps'),
-                                items: [
-                                  [
-                                    GeneratedFormTextField('appName',
-                                        label: tr('appName'),
-                                        required: false,
-                                        defaultValue: vals['appName']),
-                                    GeneratedFormTextField('author',
-                                        label: tr('author'),
-                                        required: false,
-                                        defaultValue: vals['author'])
-                                  ],
-                                  [
-                                    GeneratedFormSwitch('upToDateApps',
-                                        label: tr('upToDateApps'),
-                                        defaultValue: vals['upToDateApps'])
-                                  ],
-                                  [
-                                    GeneratedFormSwitch('nonInstalledApps',
-                                        label: tr('nonInstalledApps'),
-                                        defaultValue: vals['nonInstalledApps'])
-                                  ],
-                                  [
-                                    settingsProvider.getCategoryFormItem(
-                                        initCategory: vals['category'] ?? '')
-                                  ]
-                                ]);
+                              initValid: true,
+                              title: tr('filterApps'),
+                              items: [
+                                [
+                                  GeneratedFormTextField('appName',
+                                      label: tr('appName'),
+                                      required: false,
+                                      defaultValue: vals['appName']),
+                                  GeneratedFormTextField('author',
+                                      label: tr('author'),
+                                      required: false,
+                                      defaultValue: vals['author'])
+                                ],
+                                [
+                                  GeneratedFormSwitch('upToDateApps',
+                                      label: tr('upToDateApps'),
+                                      defaultValue: vals['upToDateApps'])
+                                ],
+                                [
+                                  GeneratedFormSwitch('nonInstalledApps',
+                                      label: tr('nonInstalledApps'),
+                                      defaultValue: vals['nonInstalledApps'])
+                                ]
+                              ],
+                              additionalWidgets: [
+                                const SizedBox(
+                                  height: 16,
+                                ),
+                                CategoryEditorSelector(
+                                  preselected: filter.categoryFilter,
+                                  onSelected: (categories) {
+                                    filter.categoryFilter = categories.toSet();
+                                  },
+                                )
+                              ],
+                            );
                           }).then((values) {
                         if (values != null) {
                           setState(() {
-                            filter = AppsFilter.fromValuesMap(values);
-                            if (AppsFilter().isIdenticalTo(filter!)) {
-                              filter = null;
-                            }
+                            filter.setFormValuesFromMap(values);
                           });
                         }
                       });
@@ -748,37 +845,35 @@ class AppsFilter {
   late String authorFilter;
   late bool includeUptodate;
   late bool includeNonInstalled;
-  late String categoryFilter;
+  late Set<String> categoryFilter;
 
   AppsFilter(
       {this.nameFilter = '',
       this.authorFilter = '',
       this.includeUptodate = true,
       this.includeNonInstalled = true,
-      this.categoryFilter = ''});
+      this.categoryFilter = const {}});
 
-  Map<String, dynamic> toValuesMap() {
+  Map<String, dynamic> toFormValuesMap() {
     return {
       'appName': nameFilter,
       'author': authorFilter,
       'upToDateApps': includeUptodate,
-      'nonInstalledApps': includeNonInstalled,
-      'category': categoryFilter
+      'nonInstalledApps': includeNonInstalled
     };
   }
 
-  AppsFilter.fromValuesMap(Map<String, dynamic> values) {
+  setFormValuesFromMap(Map<String, dynamic> values) {
     nameFilter = values['appName']!;
     authorFilter = values['author']!;
     includeUptodate = values['upToDateApps'];
     includeNonInstalled = values['nonInstalledApps'];
-    categoryFilter = values['category']!;
   }
 
-  bool isIdenticalTo(AppsFilter other) =>
+  bool isIdenticalTo(AppsFilter other, SettingsProvider settingsProvider) =>
       authorFilter.trim() == other.authorFilter.trim() &&
       nameFilter.trim() == other.nameFilter.trim() &&
       includeUptodate == other.includeUptodate &&
       includeNonInstalled == other.includeNonInstalled &&
-      categoryFilter.trim() == other.categoryFilter.trim();
+      settingsProvider.setEqual(categoryFilter, other.categoryFilter);
 }

lib/pages/import_export.dart

@@ -66,6 +66,8 @@ class _ImportExportPageState extends State<ImportExportPage> {
                                             showError(
                                                 tr('exportedTo', args: [path]),
                                                 context);
+                                          }).catchError((e) {
+                                            showError(e, context);
                                           });
                                         },
                                   child: Text(tr('obtainiumExport')))),

lib/pages/settings.dart

@@ -185,7 +185,7 @@ class _SettingsPageState extends State<SettingsPage> {
               return [e];
             }).toList(),
             onValueChanges: (values, valid, isBuilding) {
-              if (valid) {
+              if (valid && !isBuilding) {
                 values.forEach((key, value) {
                   settingsProvider.setSettingString(key, value);
                 });
@@ -286,7 +286,9 @@ class _SettingsPageState extends State<SettingsPage> {
                                   color: Theme.of(context).colorScheme.primary),
                             ),
                             height16,
-                            const CategoryEditorSelector()
+                            const CategoryEditorSelector(
+                              showLabelWhenNotEmpty: false,
+                            )
                           ],
                         ))),
           SliverToBoxAdapter(
@@ -407,12 +409,14 @@ class CategoryEditorSelector extends StatefulWidget {
   final bool singleSelect;
   final Set<String> preselected;
   final WrapAlignment alignment;
+  final bool showLabelWhenNotEmpty;
   const CategoryEditorSelector(
       {super.key,
       this.onSelected,
       this.singleSelect = false,
       this.preselected = const {},
-      this.alignment = WrapAlignment.start});
+      this.alignment = WrapAlignment.start,
+      this.showLabelWhenNotEmpty = true});
 
   @override
   State<CategoryEditorSelector> createState() => _CategoryEditorSelectorState();
@@ -432,14 +436,15 @@ class _CategoryEditorSelectorState extends State<CategoryEditorSelector> {
         items: [
           [
             GeneratedFormTagInput('categories',
-                label: tr('category'),
+                label: tr('categories'),
                 emptyMessage: tr('noCategories'),
                 defaultValue: storedValues,
                 alignment: widget.alignment,
                 deleteConfirmationMessage: MapEntry(
                     tr('deleteCategoriesQuestion'),
                     tr('categoryDeleteWarning')),
-                singleSelect: widget.singleSelect)
+                singleSelect: widget.singleSelect,
+                showLabelWhenNotEmpty: widget.showLabelWhenNotEmpty)
           ]
         ],
         onValueChanges: ((values, valid, isBuilding) {

lib/providers/apps_provider.dart

@@ -17,6 +17,7 @@ import 'package:obtainium/providers/logs_provider.dart';
 import 'package:obtainium/providers/notifications_provider.dart';
 import 'package:obtainium/providers/settings_provider.dart';
 import 'package:package_archive_info/package_archive_info.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:provider/provider.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:flutter_fgbg/flutter_fgbg.dart';
@@ -706,6 +707,14 @@ class AppsProvider with ChangeNotifier {
       exportDir = await getExternalStorageDirectory();
       path = exportDir!.path;
     }
+    if ((await DeviceInfoPlugin().androidInfo).version.sdkInt <= 28) {
+      if (await Permission.storage.isDenied) {
+        await Permission.storage.request();
+      }
+      if (await Permission.storage.isDenied) {
+        throw ObtainiumError(tr('storagePermissionDenied'));
+      }
+    }
     File export = File(
         '${exportDir.path}/${tr('obtainiumExportHyphenatedLowercase')}-${DateTime.now().millisecondsSinceEpoch}.json');
     export.writeAsStringSync(

lib/providers/settings_provider.dart

@@ -157,15 +157,6 @@ class SettingsProvider with ChangeNotifier {
     notifyListeners();
   }
 
-  getCategoryFormItem({String initCategory = ''}) => GeneratedFormDropdown(
-      'category',
-      label: tr('category'),
-      [
-        MapEntry('', tr('noCategory')),
-        ...categories.entries.map((e) => MapEntry(e.key, e.key)).toList()
-      ],
-      defaultValue: initCategory);
-
   String? get forcedLocale {
     var fl = prefs?.getString('forcedLocale');
     return supportedLocales
@@ -185,4 +176,7 @@ class SettingsProvider with ChangeNotifier {
     }
     notifyListeners();
   }
+
+  bool setEqual(Set<String> a, Set<String> b) =>
+      a.length == b.length && a.union(b).length == a.length;
 }

lib/providers/source_provider.dart

@@ -48,7 +48,7 @@ class App {
   late Map<String, dynamic> additionalSettings;
   late DateTime? lastUpdateCheck;
   bool pinned = false;
-  String? category;
+  List<String> categories;
   App(
       this.id,
       this.url,
@@ -61,7 +61,7 @@ class App {
       this.additionalSettings,
       this.lastUpdateCheck,
       this.pinned,
-      {this.category});
+      {this.categories = const []});
 
   @override
   String toString() {
@@ -103,6 +103,12 @@ class App {
             item.ensureType(additionalSettings[item.key]);
       }
     }
+    int preferredApkIndex = json['preferredApkIndex'] == null
+        ? 0
+        : json['preferredApkIndex'] as int;
+    if (preferredApkIndex < 0) {
+      preferredApkIndex = 0;
+    }
     return App(
         json['id'] as String,
         json['url'] as String,
@@ -115,15 +121,19 @@ class App {
         json['apkUrls'] == null
             ? []
             : List<String>.from(jsonDecode(json['apkUrls'])),
-        json['preferredApkIndex'] == null
-            ? 0
-            : json['preferredApkIndex'] as int,
+        preferredApkIndex,
         additionalSettings,
         json['lastUpdateCheck'] == null
             ? null
             : DateTime.fromMicrosecondsSinceEpoch(json['lastUpdateCheck']),
         json['pinned'] ?? false,
-        category: json['category']);
+        categories: json['categories'] != null
+            ? (json['categories'] as List<dynamic>)
+                .map((e) => e.toString())
+                .toList()
+            : json['category'] != null
+                ? [json['category'] as String]
+                : []);
   }
 
   Map<String, dynamic> toJson() => {
@@ -138,7 +148,7 @@ class App {
         'additionalSettings': jsonEncode(additionalSettings),
         'lastUpdateCheck': lastUpdateCheck?.microsecondsSinceEpoch,
         'pinned': pinned,
-        'category': category
+        'categories': categories
       };
 }
 
@@ -360,11 +370,11 @@ class SourceProvider {
         currentApp?.installedVersion,
         apkVersion,
         apk.apkUrls,
-        apk.apkUrls.length - 1,
+        apk.apkUrls.length - 1 >= 0 ? apk.apkUrls.length - 1 : 0,
         additionalSettings,
         DateTime.now(),
         currentApp?.pinned ?? false,
-        category: currentApp?.category);
+        categories: currentApp?.categories ?? const []);
   }
 
   // Returns errors in [results, errors] instead of throwing them

pubspec.lock

@@ -739,14 +739,14 @@ packages:
       name: webview_flutter
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.0.1"
   webview_flutter_android:
     dependency: transitive
     description:
       name: webview_flutter_android
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.0"
+    version: "3.1.1"
   webview_flutter_platform_interface:
     dependency: transitive
     description:
@@ -760,7 +760,7 @@ packages:
       name: webview_flutter_wkwebview
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.0.0"
+    version: "3.0.1"
   win32:
     dependency: transitive
     description:

pubspec.yaml

@@ -17,7 +17,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 0.9.8+96 # When changing this, update the tag in main() accordingly
+version: 0.9.12+102 # When changing this, update the tag in main() accordingly
 
 environment:
   sdk: '>=2.18.2 <3.0.0'