added open with feature

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,15 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
+    
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" /> 
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEOS" />
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+     
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="29"/>
+
     <queries>
         <intent>
             <action android:name="android.intent.action.VIEW" />

lib/main.dart

@@ -10,8 +10,15 @@ import 'package:openlib/ui/search_page.dart';
 import 'package:openlib/ui/mylibrary_page.dart';
 import 'package:openlib/ui/settings_page.dart';
 import 'package:openlib/services/database.dart' show Sqlite, MyLibraryDb;
+import 'package:openlib/services/files.dart'
+    show moveFilesToAndroidInternalStorage;
 import 'package:openlib/state/state.dart'
-    show selectedIndexProvider, themeModeProvider, dbProvider;
+    show
+        selectedIndexProvider,
+        themeModeProvider,
+        openPdfWithExternalAppProvider,
+        openEpubWithExternalAppProvider,
+        dbProvider;
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -24,12 +31,25 @@ void main() async {
   Database initDb = await Sqlite.initDb();
   MyLibraryDb dataBase = MyLibraryDb(dbInstance: initDb);
   bool isDarkMode = await dataBase.getPreference('darkMode');
+  bool openPdfwithExternalapp =
+      await dataBase.getPreference('openPdfwithExternalApp');
+  bool openEpubwithExternalapp =
+      await dataBase.getPreference('openEpubwithExternalApp');
+
+  if (Platform.isAndroid) {
+    await moveFilesToAndroidInternalStorage();
+  }
+
   runApp(
     ProviderScope(
       overrides: [
         dbProvider.overrideWithValue(dataBase),
         themeModeProvider.overrideWith(
-            (ref) => isDarkMode ? ThemeMode.dark : ThemeMode.light)
+            (ref) => isDarkMode ? ThemeMode.dark : ThemeMode.light),
+        openPdfWithExternalAppProvider
+            .overrideWith((ref) => openPdfwithExternalapp),
+        openEpubWithExternalAppProvider
+            .overrideWith((ref) => openEpubwithExternalapp)
       ],
       child: const MyApp(),
     ),

lib/services/download_file.dart

@@ -1,9 +1,9 @@
-import 'package:path_provider/path_provider.dart';
 import 'package:dio/dio.dart';
+import 'files.dart';
 
 Future<String> _getFilePath(String fileName) async {
-  final path = await getApplicationDocumentsDirectory();
+  final path = await getAppDirectoryPath;
-  return '${path.path}/$fileName';
+  return '$path/$fileName';
 }
 
 List<String> _reorderMirrors(List<String> mirrors) {

lib/services/files.dart

@@ -1,13 +1,58 @@
 import 'dart:io';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:path_provider/path_provider.dart';
+// import 'package:permission_handler/permission_handler.dart';
 import 'package:openlib/state/state.dart' show dbProvider, myLibraryProvider;
 
 Future<String> get getAppDirectoryPath async {
-  final directory = await getApplicationDocumentsDirectory();
+  if (Platform.isAndroid) {
-  return directory.path;
+    final directory = await getExternalStorageDirectory();
+    return directory!.path;
+    // // final path = '/storage/emulated/0/Openlib';
+    // print(directory.path);
+    // // File(directory.path).copySync(newPath);
+    // return '/storage/emulated/0/Openlib';
+  } else {
+    final directory = await getApplicationDocumentsDirectory();
+    return directory.path;
+  }
 }
 
+Future<void> moveFilesToAndroidInternalStorage() async {
+  try {
+    final directory = await getApplicationDocumentsDirectory();
+    final directoryExternal = await getExternalStorageDirectory();
+    List<FileSystemEntity> files = Directory(directory.path).listSync();
+    for (var element in files) {
+      if ((element.path.contains('pdf')) || element.path.contains('epub')) {
+        String fileName = element.path.split('/').last;
+        File file = File(element.path);
+        file.copySync('${directoryExternal!.path}/$fileName');
+        file.deleteSync();
+      }
+    }
+  } catch (e) {
+    print(e);
+  }
+}
+
+// Future<void> getStoragePermissionAndroid() async {
+//   if (Platform.isAndroid) {
+//     print("hi");
+//     if (await Permission.storage.status.isGranted ||
+//         await Permission.manageExternalStorage.status.isGranted) {
+//     final storagePermission = await Permission.storage.request().isGranted;
+//     final manageStoragePermission =
+//         await Permission.manageExternalStorage.request().isGranted;
+//     print(storagePermission || manageStoragePermission);
+//     if (storagePermission || manageStoragePermission) {
+//       await openAppSettings();
+//       print(storagePermission || manageStoragePermission);
+//     }
+//   }
+//   }
+// }
+
 Future<bool> isFileExists(String filePath) async {
   return await File(filePath).exists();
 }

lib/state/state.dart

@@ -144,6 +144,9 @@ final getBookPosition =
   return await ref.read(dbProvider).getBookState(fileName);
 });
 
+final openPdfWithExternalAppProvider = StateProvider<bool>((ref) => false);
+final openEpubWithExternalAppProvider = StateProvider<bool>((ref) => false);
+
 final filePathProvider =
     FutureProvider.family<String, String>((ref, fileName) async {
   String path = await getFilePath(fileName);

lib/ui/components/file_buttons_widget.dart

@@ -3,7 +3,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import 'package:openlib/ui/components/delete_dialog_widget.dart';
 import 'package:openlib/ui/epub_viewer.dart' show launchEpubViewer;
-import 'package:openlib/ui/pdf_viewer.dart';
+import 'package:openlib/ui/pdf_viewer.dart' show launchPdfViewer;
 
 class FileOpenAndDeleteButtons extends ConsumerWidget {
   final String id;
@@ -35,12 +35,8 @@ class FileOpenAndDeleteButtons extends ConsumerWidget {
                 )),
             onPressed: () async {
               if (format == 'pdf') {
-                Navigator.push(context,
+                await launchPdfViewer(
-                    MaterialPageRoute(builder: (BuildContext context) {
+                    fileName: '$id.$format', context: context, ref: ref);
-                  return PdfView(
-                    fileName: '$id.$format',
-                  );
-                }));
               } else {
                 await launchEpubViewer(
                     fileName: '$id.$format', context: context, ref: ref);

lib/ui/epub_viewer.dart

@@ -4,11 +4,17 @@ import 'package:flutter/material.dart';
 import 'package:epub_view/epub_view.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:vocsy_epub_viewer/epub_viewer.dart';
+import 'package:open_file/open_file.dart';
 
-import 'package:openlib/services/files.dart';
+import 'package:openlib/services/files.dart' show getFilePath;
 import 'package:openlib/ui/components/snack_bar_widget.dart';
 import 'package:openlib/state/state.dart'
-    show filePathProvider, saveEpubState, dbProvider, getBookPosition;
+    show
+        filePathProvider,
+        saveEpubState,
+        dbProvider,
+        getBookPosition,
+        openEpubWithExternalAppProvider;
 
 Future<void> launchEpubViewer(
     {required String fileName,
@@ -17,31 +23,36 @@ Future<void> launchEpubViewer(
   if (Platform.isAndroid || Platform.isIOS) {
     String path = await getFilePath(fileName);
     String? epubConfig = await ref.read(dbProvider).getBookState(fileName);
+    bool openWithExternalApp = ref.watch(openEpubWithExternalAppProvider);
 
-    try {
+    if (openWithExternalApp) {
-      VocsyEpub.setConfig(
+      await OpenFile.open(path);
+    } else {
+      try {
+        VocsyEpub.setConfig(
+          // ignore: use_build_context_synchronously
+          themeColor: const Color.fromARGB(255, 210, 15, 1),
+          identifier: "iosBook",
+          scrollDirection: EpubScrollDirection.HORIZONTAL,
+        );
+
+        if ((epubConfig?.isNotEmpty ?? true) &&
+            (epubConfig != null) &&
+            (!(epubConfig.startsWith('epubcfi')))) {
+          VocsyEpub.open(path,
+              lastLocation: EpubLocator.fromJson(json.decode(epubConfig)));
+        } else {
+          VocsyEpub.open(path);
+        }
+
+        VocsyEpub.locatorStream.listen((locator) async {
+          await saveEpubState(fileName, locator, ref);
+          // convert locator from string to json and save to your database to be retrieved later
+        });
+      } catch (e) {
         // ignore: use_build_context_synchronously
-        themeColor: const Color.fromARGB(255, 210, 15, 1),
+        showSnackBar(context: context, message: 'Unable to open pdf!');
-        identifier: "iosBook",
-        scrollDirection: EpubScrollDirection.HORIZONTAL,
-      );
-
-      if ((epubConfig?.isNotEmpty ?? true) &&
-          (epubConfig != null) &&
-          (!(epubConfig.startsWith('epubcfi')))) {
-        VocsyEpub.open(path,
-            lastLocation: EpubLocator.fromJson(json.decode(epubConfig)));
-      } else {
-        VocsyEpub.open(path);
       }
-
-      VocsyEpub.locatorStream.listen((locator) async {
-        await saveEpubState(fileName, locator, ref);
-        // convert locator from string to json and save to your database to be retrieved later
-      });
-    } catch (e) {
-      // ignore: use_build_context_synchronously
-      showSnackBar(context: context, message: 'Unable to open pdf!');
     }
   } else {
     Navigator.push(context, MaterialPageRoute(builder: (BuildContext context) {

lib/ui/pdf_viewer.dart

@@ -7,10 +7,31 @@ import 'package:openlib/state/state.dart'
         pdfCurrentPage,
         totalPdfPage,
         savePdfState,
+        openPdfWithExternalAppProvider,
         getBookPosition;
 import 'package:url_launcher/url_launcher.dart';
+import 'package:open_file/open_file.dart';
 import 'dart:io' show Platform;
 
+import 'package:openlib/services/files.dart' show getFilePath;
+
+Future<void> launchPdfViewer(
+    {required String fileName,
+    required BuildContext context,
+    required WidgetRef ref}) async {
+  bool openWithExternalApp = ref.watch(openPdfWithExternalAppProvider);
+  if (openWithExternalApp) {
+    String path = await getFilePath(fileName);
+    await OpenFile.open(path);
+  } else {
+    Navigator.push(context, MaterialPageRoute(builder: (BuildContext context) {
+      return PdfView(
+        fileName: fileName,
+      );
+    }));
+  }
+}
+
 class PdfView extends ConsumerStatefulWidget {
   const PdfView({super.key, required this.fileName});
 

lib/ui/settings_page.dart

@@ -3,7 +3,12 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 import 'package:openlib/ui/components/page_title_widget.dart';
 import 'package:openlib/ui/about_page.dart';
-import 'package:openlib/state/state.dart' show themeModeProvider, dbProvider;
+import 'package:openlib/state/state.dart'
+    show
+        themeModeProvider,
+        openPdfWithExternalAppProvider,
+        openEpubWithExternalAppProvider,
+        dbProvider;
 
 class SettingsPage extends ConsumerWidget {
   const SettingsPage({Key? key}) : super(key: key);
@@ -41,6 +46,56 @@ class SettingsPage extends ConsumerWidget {
                 )
               ],
             ),
+            _PaddedContainer(
+              children: [
+                Text(
+                  "Open PDF with External Reader",
+                  style: TextStyle(
+                    fontSize: 16,
+                    fontWeight: FontWeight.bold,
+                    color: Theme.of(context).colorScheme.tertiary,
+                  ),
+                ),
+                Switch(
+                  // This bool value toggles the switch.
+                  value: ref.watch(openPdfWithExternalAppProvider),
+                  activeColor: Colors.red,
+                  onChanged: (bool value) {
+                    ref.read(openPdfWithExternalAppProvider.notifier).state =
+                        value;
+                    ref
+                        .read(dbProvider)
+                        .savePreference('openPdfwithExternalApp', value);
+                  },
+                )
+              ],
+            ),
+            _PaddedContainer(
+              children: [
+                Text(
+                  "Open Epub with External Reader",
+                  style: TextStyle(
+                    fontSize: 16,
+                    fontWeight: FontWeight.bold,
+                    color: Theme.of(context).colorScheme.tertiary,
+                  ),
+                ),
+                Switch(
+                  // This bool value toggles the switch.
+                  value: ref.watch(
+                    openEpubWithExternalAppProvider,
+                  ),
+                  activeColor: Colors.red,
+                  onChanged: (bool value) {
+                    ref.read(openEpubWithExternalAppProvider.notifier).state =
+                        value;
+                    ref
+                        .read(dbProvider)
+                        .savePreference('openEpubwithExternalApp', value);
+                  },
+                )
+              ],
+            ),
             _PaddedContainer(
               onClick: () {
                 Navigator.push(context,

pubspec.lock

@@ -392,6 +392,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.2"
+  open_file:
+    dependency: "direct main"
+    description:
+      name: open_file
+      sha256: a5a32d44acb7c899987d0999e1e3cbb0a0f1adebbf41ac813ec6d2d8faa0af20
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.3.2"
   path:
     dependency: transitive
     description:
@@ -456,6 +464,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      sha256: "63e5216aae014a72fe9579ccd027323395ce7a98271d9defa9d57320d001af81"
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.4.3"
+  permission_handler_android:
+    dependency: transitive
+    description:
+      name: permission_handler_android
+      sha256: d74e77a5ecd38649905db0a7d05ef16bed42ff263b9efb73ed794317c5764ec3
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.3.4"
+  permission_handler_apple:
+    dependency: transitive
+    description:
+      name: permission_handler_apple
+      sha256: "99e220bce3f8877c78e4ace901082fb29fa1b4ebde529ad0932d8d664b34f3f5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.1.4"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      sha256: "7c6b1500385dd1d2ca61bb89e2488ca178e274a69144d26bbd65e33eae7c02a9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.11.3"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      sha256: cc074aace208760f1eee6aa4fae766b45d947df85bc831cde77009cdb4720098
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.3"
   petitparser:
     dependency: transitive
     description:

pubspec.yaml

@@ -45,6 +45,8 @@ dependencies:
 
   sqflite: ^2.3.0
   path_provider: ^2.0.15
+  permission_handler: ^10.4.3
+  open_file: ^3.3.2
 
   flutter_svg: ^2.0.7
   google_fonts: ^5.1.0

windows/flutter/generated_plugin_registrant.cc

@@ -6,9 +6,12 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <permission_handler_windows/permission_handler_windows_plugin.h>
 #include <url_launcher_windows/url_launcher_windows.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  PermissionHandlerWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("PermissionHandlerWindowsPlugin"));
   UrlLauncherWindowsRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("UrlLauncherWindows"));
 }

windows/flutter/generated_plugins.cmake

@@ -3,6 +3,7 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  permission_handler_windows
   url_launcher_windows
 )