Merge pull request #217 from ImranR98/dev

Bugfixes and UI Tweaks (#213, #215, #216)

README.md

@@ -1,4 +1,4 @@
-# ![Obtainium Icon](./android/app/src/main/res/drawable/ic_notification.png) Obtainium
+# ![Obtainium Icon](./assets/graphics/icon_small.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

@@ -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

@@ -12,7 +12,7 @@
     "ok": "好的",
     "and": "和",
     "startedBgUpdateTask": "开始后台检查更新任务",
-    "bgUpdateIgnoreAfterIs": "Bg update ignoreAfter is  {}",
+    "bgUpdateIgnoreAfterIs": "下次后台更新检查  {}",
     "startedActualBGUpdateCheck": "后台检查更新已开始",
     "bgUpdateTaskFinished": "后台检查更新已完成",
     "firstRun": "这是你第一次运行 Obtainium",
@@ -199,16 +199,18 @@
     "downloadNotifDescription": "通知用户下载进度",
     "noAPKFound": "未找到安装包",
     "noVersionDetection": "无版本检测",
-    "categorize": "Categorize",
-    "categories": "Categories",
-    "category": "Category",
-    "noCategory": "No Category",
-    "noCategories": "No Categories",
-    "deleteCategoriesQuestion": "Delete Categories?",
-    "categoryDeleteWarning": "All Apps in deleted categories will be set to uncategorized.",
-    "addCategory": "Add Category",
-    "label": "Label",
-    "language": "Language",
+    "categorize": "归档",
+    "categories": "归档",
+    "category": "类别",
+    "noCategory": "无类别",
+    "noCategories": "无类别",
+    "deleteCategoriesQuestion": "删除所有类别？",
+    "categoryDeleteWarning": "所有被删除类别的应用程序将被设置为无类别",
+    "addCategory": "添加类别",
+    "label": "标签",
+    "language": "语言",
+    "storagePermissionDenied": "存储权限已被拒绝",
+    "selectedCategorizeWarning": "这将取代所选应用程序的任何现有类别",
     "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/app_sources/github.dart

@@ -15,6 +15,7 @@ class GitHub extends AppSource {
     additionalSourceSpecificSettingFormItems = [
       GeneratedFormTextField('github-creds',
           label: tr('githubPATLabel'),
+          password: true,
           required: false,
           additionalValidators: [
             (value) {

lib/components/generated_form.dart

@@ -3,7 +3,6 @@ import 'dart:math';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:obtainium/components/generated_form_modal.dart';
-import 'package:obtainium/providers/settings_provider.dart';
 
 abstract class GeneratedFormItem {
   late String key;
@@ -24,6 +23,7 @@ class GeneratedFormTextField extends GeneratedFormItem {
   late bool required;
   late int max;
   late String? hint;
+  late bool password;
 
   GeneratedFormTextField(String key,
       {String label = 'Input',
@@ -32,7 +32,8 @@ class GeneratedFormTextField extends GeneratedFormItem {
       List<String? Function(String? value)> additionalValidators = const [],
       this.required = true,
       this.max = 1,
-      this.hint})
+      this.hint,
+      this.password = false})
       : super(key,
             label: label,
             belowWidgets: belowWidgets,
@@ -129,6 +130,21 @@ class GeneratedForm extends StatefulWidget {
   State<GeneratedForm> createState() => _GeneratedFormState();
 }
 
+// Generates a random light color
+// Courtesy of ChatGPT 😭 (with a bugfix 🥳)
+Color generateRandomLightColor() {
+  // Create a random number generator
+  final Random random = Random();
+
+  // Generate random hue, saturation, and value values
+  final double hue = random.nextDouble() * 360;
+  final double saturation = 0.5 + random.nextDouble() * 0.5;
+  final double value = 0.9 + random.nextDouble() * 0.1;
+
+  // Create a HSV color with the random values
+  return HSVColor.fromAHSV(1.0, hue, saturation, value).toColor();
+}
+
 class _GeneratedFormState extends State<GeneratedForm> {
   final _formKey = GlobalKey<FormState>();
   Map<String, dynamic> values = {};
@@ -153,21 +169,6 @@ class _GeneratedFormState extends State<GeneratedForm> {
     widget.onValueChanges(returnValues, valid, isBuilding);
   }
 
-  // Generates a random light color
-  // Courtesy of ChatGPT 😭 (with a bugfix 🥳)
-  Color generateRandomLightColor() {
-    // Create a random number generator
-    final Random random = Random();
-
-    // Generate random hue, saturation, and value values
-    final double hue = random.nextDouble() * 360;
-    final double saturation = 0.5 + random.nextDouble() * 0.5;
-    final double value = 0.9 + random.nextDouble() * 0.1;
-
-    // Create a HSV color with the random values
-    return HSVColor.fromAHSV(1.0, hue, saturation, value).toColor();
-  }
-
   @override
   void initState() {
     super.initState();
@@ -188,6 +189,9 @@ class _GeneratedFormState extends State<GeneratedForm> {
         if (formItem is GeneratedFormTextField) {
           final formFieldKey = GlobalKey<FormFieldState>();
           return TextFormField(
+            obscureText: formItem.password,
+            autocorrect: !formItem.password,
+            enableSuggestions: !formItem.password,
             key: formFieldKey,
             initialValue: values[formItem.key],
             autovalidateMode: AutovalidateMode.onUserInteraction,

lib/components/generated_form_modal.dart

@@ -10,13 +10,15 @@ class GeneratedFormModal extends StatefulWidget {
       required this.items,
       this.initValid = false,
       this.message = '',
-      this.additionalWidgets = const []});
+      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();
@@ -64,17 +66,21 @@ class _GeneratedFormModalState extends State<GeneratedFormModal> {
             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 = '0.9.9';
+const String currentVersion = '0.9.14';
 const String currentReleaseTag =
     'v$currentVersion-beta'; // KEEP THIS IN SYNC WITH GITHUB RELEASES
 

lib/pages/add_app.dart

@@ -30,7 +30,7 @@ class _AddAppPageState extends State<AddAppPage> {
   AppSource? pickedSource;
   Map<String, dynamic> additionalSettings = {};
   bool additionalSettingsValid = true;
-  String? category;
+  List<String> pickedCategories = [];
 
   @override
   Widget build(BuildContext context) {
@@ -127,9 +127,7 @@ class _AddAppPageState extends State<AddAppPage> {
           if (app.additionalSettings['trackOnly'] == true) {
             app.installedVersion = app.latestVersion;
           }
-          if (category != null) {
-            app.category = category;
-          }
+          app.categories = pickedCategories;
           await appsProvider.saveApps([app]);
 
           return app;
@@ -290,7 +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) {
@@ -334,11 +332,8 @@ class _AddAppPageState extends State<AddAppPage> {
                                 ),
                                 CategoryEditorSelector(
                                     alignment: WrapAlignment.start,
-                                    singleSelect: true,
                                     onSelected: (categories) {
-                                      category = categories.isEmpty
-                                          ? null
-                                          : categories.first;
+                                      pickedCategories = categories;
                                     }),
                               ],
                             ),

lib/pages/app.dart

@@ -42,6 +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,
@@ -71,106 +171,7 @@ class _AppPageState extends State<AppPage> {
               : CustomScrollView(
                   slivers: [
                     SliverToBoxAdapter(
-                        child: 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,
-                        ),
-                        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]);
-                              }
-                            }),
-                        const SizedBox(height: 150)
-                      ],
-                    )),
+                        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

@@ -55,7 +55,8 @@ class AppsPageState extends State<AppsPage> {
     var appsProvider = context.watch<AppsProvider>();
     var settingsProvider = context.watch<SettingsProvider>();
     var sortedApps = appsProvider.apps.values.toList();
-    var currentFilterIsUpdatesOnly = filter.isIdenticalTo(updatesOnlyFilter);
+    var currentFilterIsUpdatesOnly =
+        filter.isIdenticalTo(updatesOnlyFilter, settingsProvider);
 
     selectedApps = selectedApps
         .where((element) => sortedApps.map((e) => e.app).contains(element))
@@ -102,7 +103,9 @@ class AppsPageState extends State<AppsPage> {
         }
       }
       if (filter.categoryFilter.isNotEmpty &&
-          !filter.categoryFilter.contains(app.app.category)) {
+          filter.categoryFilter
+              .intersection(app.app.categories.toSet())
+              .isEmpty) {
         return false;
       }
       return true;
@@ -224,14 +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: 4,
-                              color: Color(settingsProvider.categories[
-                                      sortedApps[index].app.category] ??
-                                  const Color.fromARGB(0, 0, 0, 0).value)))),
+                              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)
@@ -338,7 +348,9 @@ class AppsPageState extends State<AppsPage> {
         Row(
           children: [
             selectedApps.isEmpty
-                ? IconButton(
+                ? TextButton.icon(
+                    style:
+                        const ButtonStyle(visualDensity: VisualDensity.compact),
                     onPressed: () {
                       selectThese(sortedApps.map((e) => e.app).toList());
                     },
@@ -346,8 +358,10 @@ class AppsPageState extends State<AppsPage> {
                       Icons.select_all_outlined,
                       color: Theme.of(context).colorScheme.primary,
                     ),
-                    tooltip: tr('selectAll'))
+                    label: Text(sortedApps.length.toString()))
                 : TextButton.icon(
+                    style:
+                        const ButtonStyle(visualDensity: VisualDensity.compact),
                     onPressed: () {
                       selectedApps.isEmpty
                           ? selectThese(sortedApps.map((e) => e.app).toList())
@@ -362,307 +376,415 @@ class AppsPageState extends State<AppsPage> {
                     label: Text(selectedApps.length.toString())),
             const VerticalDivider(),
             Expanded(
-                child: Row(
-              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-              children: [
-                selectedApps.isEmpty
-                    ? const SizedBox()
-                    : IconButton(
-                        visualDensity: VisualDensity.compact,
-                        onPressed: () {
-                          showDialog<Map<String, dynamic>?>(
-                              context: context,
-                              builder: (BuildContext ctx) {
-                                return GeneratedFormModal(
-                                  title: tr('removeSelectedAppsQuestion'),
-                                  items: const [],
-                                  initValid: true,
-                                  message: tr(
-                                      'xWillBeRemovedButRemainInstalled',
-                                      args: [
-                                        plural('apps', selectedApps.length)
-                                      ]),
-                                );
-                              }).then((values) {
-                            if (values != null) {
-                              appsProvider.removeApps(
-                                  selectedApps.map((e) => e.id).toList());
-                            }
-                          });
-                        },
-                        tooltip: tr('removeSelectedApps'),
-                        icon: const Icon(Icons.delete_outline_outlined),
-                      ),
-                IconButton(
-                    visualDensity: VisualDensity.compact,
-                    onPressed: appsProvider.areDownloadsRunning() ||
-                            (existingUpdateIdsAllOrSelected.isEmpty &&
-                                newInstallIdsAllOrSelected.isEmpty &&
-                                trackOnlyUpdateIdsAllOrSelected.isEmpty)
-                        ? null
-                        : () {
-                            HapticFeedback.heavyImpact();
-                            List<GeneratedFormItem> formItems = [];
-                            if (existingUpdateIdsAllOrSelected.isNotEmpty) {
-                              formItems.add(GeneratedFormSwitch('updates',
-                                  label: tr('updateX', args: [
-                                    plural('apps',
-                                        existingUpdateIdsAllOrSelected.length)
-                                  ]),
-                                  defaultValue: true));
-                            }
-                            if (newInstallIdsAllOrSelected.isNotEmpty) {
-                              formItems.add(GeneratedFormSwitch('installs',
-                                  label: tr('installX', args: [
-                                    plural('apps',
-                                        newInstallIdsAllOrSelected.length)
-                                  ]),
-                                  defaultValue: existingUpdateIdsAllOrSelected
-                                      .isNotEmpty));
-                            }
-                            if (trackOnlyUpdateIdsAllOrSelected.isNotEmpty) {
-                              formItems.add(GeneratedFormSwitch('trackonlies',
-                                  label: tr('markXTrackOnlyAsUpdated', args: [
-                                    plural('apps',
-                                        trackOnlyUpdateIdsAllOrSelected.length)
-                                  ]),
-                                  defaultValue: existingUpdateIdsAllOrSelected
-                                          .isNotEmpty ||
-                                      newInstallIdsAllOrSelected.isNotEmpty));
-                            }
-                            showDialog<Map<String, dynamic>?>(
-                                context: context,
-                                builder: (BuildContext ctx) {
-                                  var totalApps = existingUpdateIdsAllOrSelected
-                                          .length +
-                                      newInstallIdsAllOrSelected.length +
-                                      trackOnlyUpdateIdsAllOrSelected.length;
-                                  return GeneratedFormModal(
-                                    title: tr('changeX',
-                                        args: [plural('apps', totalApps)]),
-                                    items: formItems.map((e) => [e]).toList(),
-                                    initValid: true,
-                                  );
-                                }).then((values) {
-                              if (values != null) {
-                                if (values.isEmpty) {
-                                  values = getDefaultValuesFromFormItems(
-                                      [formItems]);
-                                }
-                                bool shouldInstallUpdates =
-                                    values['updates'] == true;
-                                bool shouldInstallNew =
-                                    values['installs'] == true;
-                                bool shouldMarkTrackOnlies =
-                                    values['trackonlies'] == true;
-                                (() async {
-                                  if (shouldInstallNew ||
-                                      shouldInstallUpdates) {
-                                    await settingsProvider
-                                        .getInstallPermission();
-                                  }
-                                })()
-                                    .then((_) {
-                                  List<String> toInstall = [];
-                                  if (shouldInstallUpdates) {
-                                    toInstall
-                                        .addAll(existingUpdateIdsAllOrSelected);
-                                  }
-                                  if (shouldInstallNew) {
-                                    toInstall
-                                        .addAll(newInstallIdsAllOrSelected);
-                                  }
-                                  if (shouldMarkTrackOnlies) {
-                                    toInstall.addAll(
-                                        trackOnlyUpdateIdsAllOrSelected);
-                                  }
-                                  appsProvider
-                                      .downloadAndInstallLatestApps(toInstall,
-                                          globalNavigatorKey.currentContext)
-                                      .catchError((e) {
-                                    showError(e, context);
+                child: SingleChildScrollView(
+                    scrollDirection: Axis.horizontal,
+                    child: Row(
+                      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                      children: [
+                        IconButton(
+                          visualDensity: VisualDensity.compact,
+                          onPressed: selectedApps.isEmpty
+                              ? null
+                              : () {
+                                  showDialog<Map<String, dynamic>?>(
+                                      context: context,
+                                      builder: (BuildContext ctx) {
+                                        return GeneratedFormModal(
+                                          title:
+                                              tr('removeSelectedAppsQuestion'),
+                                          items: const [],
+                                          initValid: true,
+                                          message: tr(
+                                              'xWillBeRemovedButRemainInstalled',
+                                              args: [
+                                                plural(
+                                                    'apps', selectedApps.length)
+                                              ]),
+                                        );
+                                      }).then((values) {
+                                    if (values != null) {
+                                      appsProvider.removeApps(selectedApps
+                                          .map((e) => e.id)
+                                          .toList());
+                                    }
                                   });
-                                });
-                              }
-                            });
-                          },
-                    tooltip: selectedApps.isEmpty
-                        ? tr('installUpdateApps')
-                        : tr('installUpdateSelectedApps'),
-                    icon: const Icon(
-                      Icons.file_download_outlined,
-                    )),
-                selectedApps.isEmpty
-                    ? const SizedBox()
-                    : IconButton(
-                        visualDensity: VisualDensity.compact,
-                        onPressed: () {
-                          showDialog(
-                              context: context,
-                              builder: (BuildContext ctx) {
-                                return AlertDialog(
-                                  scrollable: true,
-                                  content: Padding(
-                                    padding: const EdgeInsets.only(top: 6),
-                                    child: Row(
-                                        mainAxisAlignment:
-                                            MainAxisAlignment.spaceAround,
-                                        children: [
-                                          IconButton(
-                                              onPressed:
-                                                  appsProvider
-                                                          .areDownloadsRunning()
-                                                      ? null
-                                                      : () {
-                                                          showDialog(
-                                                              context: context,
-                                                              builder:
-                                                                  (BuildContext
-                                                                      ctx) {
-                                                                return AlertDialog(
-                                                                  title: Text(tr(
-                                                                      'markXSelectedAppsAsUpdated',
-                                                                      args: [
-                                                                        selectedApps
-                                                                            .length
-                                                                            .toString()
-                                                                      ])),
-                                                                  content: Text(
-                                                                    tr('onlyWorksWithNonEVDApps'),
-                                                                    style: const TextStyle(
-                                                                        fontWeight:
-                                                                            FontWeight
-                                                                                .bold,
-                                                                        fontStyle:
-                                                                            FontStyle.italic),
-                                                                  ),
-                                                                  actions: [
-                                                                    TextButton(
-                                                                        onPressed:
-                                                                            () {
-                                                                          Navigator.of(context)
-                                                                              .pop();
-                                                                        },
-                                                                        child: Text(
-                                                                            tr('no'))),
-                                                                    TextButton(
-                                                                        onPressed:
-                                                                            () {
-                                                                          HapticFeedback
-                                                                              .selectionClick();
-                                                                          appsProvider
-                                                                              .saveApps(selectedApps.map((a) {
-                                                                            if (a.installedVersion !=
-                                                                                null) {
-                                                                              a.installedVersion = a.latestVersion;
-                                                                            }
-                                                                            return a;
-                                                                          }).toList());
+                                },
+                          tooltip: tr('removeSelectedApps'),
+                          icon: const Icon(Icons.delete_outline_outlined),
+                        ),
+                        IconButton(
+                            visualDensity: VisualDensity.compact,
+                            onPressed: appsProvider.areDownloadsRunning() ||
+                                    (existingUpdateIdsAllOrSelected.isEmpty &&
+                                        newInstallIdsAllOrSelected.isEmpty &&
+                                        trackOnlyUpdateIdsAllOrSelected.isEmpty)
+                                ? null
+                                : () {
+                                    HapticFeedback.heavyImpact();
+                                    List<GeneratedFormItem> formItems = [];
+                                    if (existingUpdateIdsAllOrSelected
+                                        .isNotEmpty) {
+                                      formItems.add(GeneratedFormSwitch(
+                                          'updates',
+                                          label: tr('updateX', args: [
+                                            plural(
+                                                'apps',
+                                                existingUpdateIdsAllOrSelected
+                                                    .length)
+                                          ]),
+                                          defaultValue: true));
+                                    }
+                                    if (newInstallIdsAllOrSelected.isNotEmpty) {
+                                      formItems.add(GeneratedFormSwitch(
+                                          'installs',
+                                          label: tr('installX', args: [
+                                            plural(
+                                                'apps',
+                                                newInstallIdsAllOrSelected
+                                                    .length)
+                                          ]),
+                                          defaultValue:
+                                              existingUpdateIdsAllOrSelected
+                                                  .isNotEmpty));
+                                    }
+                                    if (trackOnlyUpdateIdsAllOrSelected
+                                        .isNotEmpty) {
+                                      formItems.add(GeneratedFormSwitch(
+                                          'trackonlies',
+                                          label: tr('markXTrackOnlyAsUpdated',
+                                              args: [
+                                                plural(
+                                                    'apps',
+                                                    trackOnlyUpdateIdsAllOrSelected
+                                                        .length)
+                                              ]),
+                                          defaultValue:
+                                              existingUpdateIdsAllOrSelected
+                                                      .isNotEmpty ||
+                                                  newInstallIdsAllOrSelected
+                                                      .isNotEmpty));
+                                    }
+                                    showDialog<Map<String, dynamic>?>(
+                                        context: context,
+                                        builder: (BuildContext ctx) {
+                                          var totalApps =
+                                              existingUpdateIdsAllOrSelected.length +
+                                                  newInstallIdsAllOrSelected
+                                                      .length +
+                                                  trackOnlyUpdateIdsAllOrSelected
+                                                      .length;
+                                          return GeneratedFormModal(
+                                            title: tr('changeX', args: [
+                                              plural('apps', totalApps)
+                                            ]),
+                                            items: formItems
+                                                .map((e) => [e])
+                                                .toList(),
+                                            initValid: true,
+                                          );
+                                        }).then((values) {
+                                      if (values != null) {
+                                        if (values.isEmpty) {
+                                          values =
+                                              getDefaultValuesFromFormItems(
+                                                  [formItems]);
+                                        }
+                                        bool shouldInstallUpdates =
+                                            values['updates'] == true;
+                                        bool shouldInstallNew =
+                                            values['installs'] == true;
+                                        bool shouldMarkTrackOnlies =
+                                            values['trackonlies'] == true;
+                                        (() async {
+                                          if (shouldInstallNew ||
+                                              shouldInstallUpdates) {
+                                            await settingsProvider
+                                                .getInstallPermission();
+                                          }
+                                        })()
+                                            .then((_) {
+                                          List<String> toInstall = [];
+                                          if (shouldInstallUpdates) {
+                                            toInstall.addAll(
+                                                existingUpdateIdsAllOrSelected);
+                                          }
+                                          if (shouldInstallNew) {
+                                            toInstall.addAll(
+                                                newInstallIdsAllOrSelected);
+                                          }
+                                          if (shouldMarkTrackOnlies) {
+                                            toInstall.addAll(
+                                                trackOnlyUpdateIdsAllOrSelected);
+                                          }
+                                          appsProvider
+                                              .downloadAndInstallLatestApps(
+                                                  toInstall,
+                                                  globalNavigatorKey
+                                                      .currentContext)
+                                              .catchError((e) {
+                                            showError(e, context);
+                                          });
+                                        });
+                                      }
+                                    });
+                                  },
+                            tooltip: selectedApps.isEmpty
+                                ? tr('installUpdateApps')
+                                : tr('installUpdateSelectedApps'),
+                            icon: const Icon(
+                              Icons.file_download_outlined,
+                            )),
+                        IconButton(
+                          visualDensity: VisualDensity.compact,
+                          onPressed: selectedApps.isEmpty
+                              ? null
+                              : () 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),
+                        ),
+                        IconButton(
+                          visualDensity: VisualDensity.compact,
+                          onPressed: selectedApps.isEmpty
+                              ? null
+                              : () {
+                                  showDialog(
+                                      context: context,
+                                      builder: (BuildContext ctx) {
+                                        return AlertDialog(
+                                          scrollable: true,
+                                          content: Padding(
+                                            padding:
+                                                const EdgeInsets.only(top: 6),
+                                            child: Row(
+                                                mainAxisAlignment:
+                                                    MainAxisAlignment
+                                                        .spaceAround,
+                                                children: [
+                                                  IconButton(
+                                                      onPressed: appsProvider
+                                                              .areDownloadsRunning()
+                                                          ? null
+                                                          : () {
+                                                              showDialog(
+                                                                  context:
+                                                                      context,
+                                                                  builder:
+                                                                      (BuildContext
+                                                                          ctx) {
+                                                                    return AlertDialog(
+                                                                      title: Text(tr(
+                                                                          'markXSelectedAppsAsUpdated',
+                                                                          args: [
+                                                                            selectedApps.length.toString()
+                                                                          ])),
+                                                                      content:
+                                                                          Text(
+                                                                        tr('onlyWorksWithNonEVDApps'),
+                                                                        style: const TextStyle(
+                                                                            fontWeight:
+                                                                                FontWeight.bold,
+                                                                            fontStyle: FontStyle.italic),
+                                                                      ),
+                                                                      actions: [
+                                                                        TextButton(
+                                                                            onPressed:
+                                                                                () {
+                                                                              Navigator.of(context).pop();
+                                                                            },
+                                                                            child:
+                                                                                Text(tr('no'))),
+                                                                        TextButton(
+                                                                            onPressed:
+                                                                                () {
+                                                                              HapticFeedback.selectionClick();
+                                                                              appsProvider.saveApps(selectedApps.map((a) {
+                                                                                if (a.installedVersion != null) {
+                                                                                  a.installedVersion = a.latestVersion;
+                                                                                }
+                                                                                return a;
+                                                                              }).toList());
 
-                                                                          Navigator.of(context)
-                                                                              .pop();
-                                                                        },
-                                                                        child: Text(
-                                                                            tr('yes')))
-                                                                  ],
-                                                                );
-                                                              }).whenComplete(() {
-                                                            Navigator.of(
-                                                                    context)
-                                                                .pop();
-                                                          });
-                                                        },
-                                              tooltip:
-                                                  tr('markSelectedAppsUpdated'),
-                                              icon: const Icon(Icons.done)),
-                                          IconButton(
-                                            onPressed: () {
-                                              var pinStatus = selectedApps
-                                                  .where((element) =>
-                                                      element.pinned)
-                                                  .isEmpty;
-                                              appsProvider.saveApps(
-                                                  selectedApps.map((e) {
-                                                e.pinned = pinStatus;
-                                                return e;
-                                              }).toList());
-                                              Navigator.of(context).pop();
-                                            },
-                                            tooltip: selectedApps
-                                                    .where((element) =>
-                                                        element.pinned)
-                                                    .isEmpty
-                                                ? tr('pinToTop')
-                                                : tr('unpinFromTop'),
-                                            icon: Icon(selectedApps
-                                                    .where((element) =>
-                                                        element.pinned)
-                                                    .isEmpty
-                                                ? Icons.bookmark_outline_rounded
-                                                : Icons
-                                                    .bookmark_remove_outlined),
+                                                                              Navigator.of(context).pop();
+                                                                            },
+                                                                            child:
+                                                                                Text(tr('yes')))
+                                                                      ],
+                                                                    );
+                                                                  }).whenComplete(() {
+                                                                Navigator.of(
+                                                                        context)
+                                                                    .pop();
+                                                              });
+                                                            },
+                                                      tooltip: tr(
+                                                          'markSelectedAppsUpdated'),
+                                                      icon: const Icon(
+                                                          Icons.done)),
+                                                  IconButton(
+                                                    onPressed: () {
+                                                      var pinStatus =
+                                                          selectedApps
+                                                              .where((element) =>
+                                                                  element
+                                                                      .pinned)
+                                                              .isEmpty;
+                                                      appsProvider.saveApps(
+                                                          selectedApps.map((e) {
+                                                        e.pinned = pinStatus;
+                                                        return e;
+                                                      }).toList());
+                                                      Navigator.of(context)
+                                                          .pop();
+                                                    },
+                                                    tooltip: selectedApps
+                                                            .where((element) =>
+                                                                element.pinned)
+                                                            .isEmpty
+                                                        ? tr('pinToTop')
+                                                        : tr('unpinFromTop'),
+                                                    icon: Icon(selectedApps
+                                                            .where((element) =>
+                                                                element.pinned)
+                                                            .isEmpty
+                                                        ? Icons
+                                                            .bookmark_outline_rounded
+                                                        : Icons
+                                                            .bookmark_remove_outlined),
+                                                  ),
+                                                  IconButton(
+                                                    onPressed: () {
+                                                      String urls = '';
+                                                      for (var a
+                                                          in selectedApps) {
+                                                        urls += '${a.url}\n';
+                                                      }
+                                                      urls = urls.substring(
+                                                          0, urls.length - 1);
+                                                      Share.share(urls,
+                                                          subject: tr(
+                                                              'selectedAppURLsFromObtainium'));
+                                                      Navigator.of(context)
+                                                          .pop();
+                                                    },
+                                                    tooltip: tr(
+                                                        'shareSelectedAppURLs'),
+                                                    icon:
+                                                        const Icon(Icons.share),
+                                                  ),
+                                                  IconButton(
+                                                    onPressed: () {
+                                                      showDialog(
+                                                          context: context,
+                                                          builder: (BuildContext
+                                                              ctx) {
+                                                            return GeneratedFormModal(
+                                                              title: tr(
+                                                                  'resetInstallStatusForSelectedAppsQuestion'),
+                                                              items: const [],
+                                                              initValid: true,
+                                                              message: tr(
+                                                                  'installStatusOfXWillBeResetExplanation',
+                                                                  args: [
+                                                                    plural(
+                                                                        'app',
+                                                                        selectedApps
+                                                                            .length)
+                                                                  ]),
+                                                            );
+                                                          }).then((values) {
+                                                        if (values != null) {
+                                                          appsProvider.saveApps(
+                                                              selectedApps
+                                                                  .map((e) {
+                                                            e.installedVersion =
+                                                                null;
+                                                            return e;
+                                                          }).toList());
+                                                        }
+                                                      }).whenComplete(() {
+                                                        Navigator.of(context)
+                                                            .pop();
+                                                      });
+                                                    },
+                                                    tooltip: tr(
+                                                        'resetInstallStatus'),
+                                                    icon: const Icon(Icons
+                                                        .restore_page_outlined),
+                                                  ),
+                                                ]),
                                           ),
-                                          IconButton(
-                                            onPressed: () {
-                                              String urls = '';
-                                              for (var a in selectedApps) {
-                                                urls += '${a.url}\n';
-                                              }
-                                              urls = urls.substring(
-                                                  0, urls.length - 1);
-                                              Share.share(urls,
-                                                  subject: tr(
-                                                      'selectedAppURLsFromObtainium'));
-                                              Navigator.of(context).pop();
-                                            },
-                                            tooltip: tr('shareSelectedAppURLs'),
-                                            icon: const Icon(Icons.share),
-                                          ),
-                                          IconButton(
-                                            onPressed: () {
-                                              showDialog(
-                                                  context: context,
-                                                  builder: (BuildContext ctx) {
-                                                    return GeneratedFormModal(
-                                                      title: tr(
-                                                          'resetInstallStatusForSelectedAppsQuestion'),
-                                                      items: const [],
-                                                      initValid: true,
-                                                      message: tr(
-                                                          'installStatusOfXWillBeResetExplanation',
-                                                          args: [
-                                                            plural(
-                                                                'app',
-                                                                selectedApps
-                                                                    .length)
-                                                          ]),
-                                                    );
-                                                  }).then((values) {
-                                                if (values != null) {
-                                                  appsProvider.saveApps(
-                                                      selectedApps.map((e) {
-                                                    e.installedVersion = null;
-                                                    return e;
-                                                  }).toList());
-                                                }
-                                              }).whenComplete(() {
-                                                Navigator.of(context).pop();
-                                              });
-                                            },
-                                            tooltip: tr('resetInstallStatus'),
-                                            icon: const Icon(
-                                                Icons.restore_page_outlined),
-                                          ),
-                                        ]),
-                                  ),
-                                );
-                              });
-                        },
-                        tooltip: tr('more'),
-                        icon: const Icon(Icons.more_horiz),
-                      ),
-              ],
-            )),
+                                        );
+                                      });
+                                },
+                          tooltip: tr('more'),
+                          icon: const Icon(Icons.more_horiz),
+                        ),
+                      ],
+                    ))),
             const VerticalDivider(),
             IconButton(
               visualDensity: VisualDensity.compact,
@@ -688,12 +810,15 @@ class AppsPageState extends State<AppsPage> {
             appsProvider.apps.isEmpty
                 ? const SizedBox()
                 : TextButton.icon(
+                    style:
+                        const ButtonStyle(visualDensity: VisualDensity.compact),
                     label: Text(
-                      filter.isIdenticalTo(neutralFilter)
+                      filter.isIdenticalTo(neutralFilter, settingsProvider)
                           ? tr('filter')
                           : tr('filterActive'),
                       style: TextStyle(
-                          fontWeight: filter.isIdenticalTo(neutralFilter)
+                          fontWeight: filter.isIdenticalTo(
+                                  neutralFilter, settingsProvider)
                               ? FontWeight.normal
                               : FontWeight.bold),
                     ),
@@ -785,12 +910,10 @@ class AppsFilter {
     includeNonInstalled = values['nonInstalledApps'];
   }
 
-  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.length == other.categoryFilter.length &&
-      categoryFilter.union(other.categoryFilter).length ==
-          categoryFilter.length;
+      settingsProvider.setEqual(categoryFilter, other.categoryFilter);
 }

lib/pages/import_export.dart

@@ -9,6 +9,7 @@ import 'package:obtainium/components/generated_form.dart';
 import 'package:obtainium/components/generated_form_modal.dart';
 import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/providers/apps_provider.dart';
+import 'package:obtainium/providers/settings_provider.dart';
 import 'package:obtainium/providers/source_provider.dart';
 import 'package:provider/provider.dart';
 import 'package:file_picker/file_picker.dart';
@@ -28,6 +29,7 @@ class _ImportExportPageState extends State<ImportExportPage> {
   Widget build(BuildContext context) {
     SourceProvider sourceProvider = SourceProvider();
     var appsProvider = context.read<AppsProvider>();
+    var settingsProvider = context.read<SettingsProvider>();
     var outlineButtonStyle = ButtonStyle(
       shape: MaterialStateProperty.all(
         StadiumBorder(
@@ -66,6 +68,8 @@ class _ImportExportPageState extends State<ImportExportPage> {
                                             showError(
                                                 tr('exportedTo', args: [path]),
                                                 context);
+                                          }).catchError((e) {
+                                            showError(e, context);
                                           });
                                         },
                                   child: Text(tr('obtainiumExport')))),
@@ -98,6 +102,21 @@ class _ImportExportPageState extends State<ImportExportPage> {
                                               appsProvider
                                                   .importApps(data)
                                                   .then((value) {
+                                                var cats =
+                                                    settingsProvider.categories;
+                                                appsProvider.apps
+                                                    .forEach((key, value) {
+                                                  for (var c
+                                                      in value.app.categories) {
+                                                    if (!cats.containsKey(c)) {
+                                                      cats[c] =
+                                                          generateRandomLightColor()
+                                                              .value;
+                                                    }
+                                                  }
+                                                });
+                                                settingsProvider.categories =
+                                                    cats;
                                                 showError(
                                                     tr('importedX', args: [
                                                       plural('apps', value)

lib/pages/settings.dart

@@ -436,7 +436,7 @@ class _CategoryEditorSelectorState extends State<CategoryEditorSelector> {
         items: [
           [
             GeneratedFormTagInput('categories',
-                label: tr('category'),
+                label: tr('categories'),
                 emptyMessage: tr('noCategories'),
                 defaultValue: storedValues,
                 alignment: widget.alignment,

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

@@ -56,7 +56,7 @@ packages:
       name: checked_yaml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.1"
+    version: "2.0.2"
   cli_util:
     dependency: transitive
     description:
@@ -286,7 +286,7 @@ packages:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.2.2"
+    version: "3.3.0"
   install_plugin_v2:
     dependency: "direct main"
     description:
@@ -559,7 +559,7 @@ packages:
       name: shared_preferences_macos
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.0.5"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
@@ -655,7 +655,7 @@ packages:
       name: timezone
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.0"
+    version: "0.9.1"
   typed_data:
     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: 0.9.9+97 # When changing this, update the tag in main() accordingly
+version: 0.9.14+104 # When changing this, update the tag in main() accordingly
 
 environment:
   sdk: '>=2.18.2 <3.0.0'