Agregados permisos de aplicación para carpetas

android/app/src/debug/AndroidManifest.xml

@@ -4,4 +4,8 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO"/>
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO"/>
 </manifest>

lib/widgets/convertex_fab_bar.dart

@@ -4,6 +4,7 @@ import 'package:file_picker/file_picker.dart';
 import 'package:provider/provider.dart';
 import 'package:prueba_multimedia/modelo/modelo.dart';
 import 'package:prueba_multimedia/widgets/widgets.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 class ConVertexFabBar extends StatefulWidget {
   const ConVertexFabBar({super.key});
@@ -148,6 +149,23 @@ class _ConVertexFabBarState extends State<ConVertexFabBar> {
       ActionButton(
           tipoBoton: ActionButtonTypes.carpeta,
           onPressed: () async {
+            // Comprobación de permisos
+            final granted = await Permission.manageExternalStorage.isGranted;
+            if(!granted){
+              final permanently = await Permission.manageExternalStorage.isPermanentlyDenied;
+              if(permanently){
+                _mostrarNotificacion('El acceso al almacenamiento del dispositivo ha sido denegado permanentemente.\n¿Desea abrir la configuración para modificar el permiso?', true);
+                return;
+              }
+              else{
+                await _mostrarNotificacion('ConVertex no tiene permiso para acceder a sus archivos. Por favor, para usar esta función, active el permiso a continuación.', false);
+                if(await Permission.manageExternalStorage.request().isDenied){
+                  _mostrarNotificacion('Se ha denegado el permiso de acceso al almacenamiento. Sin dicho permiso, ConVertex no puede acceder a los archivos dentro de sus carpetas.\nPor favor, ceda el permiso para usar esta función.', false);
+                  return;
+                }
+              }
+            }
+
             String? path = await FilePicker.platform.getDirectoryPath();
             if (path != null) {
               var directory = Directory(path);
@@ -170,4 +188,28 @@ class _ConVertexFabBarState extends State<ConVertexFabBar> {
     ];
     return buttons;
   }
+
+  Future<void> _mostrarNotificacion(String text, bool opcion) async{
+    await showDialog(
+        context: context,
+        builder: (context) {
+          return AlertDialog(
+              content: Text(text),
+              actions: [
+                if(opcion) TextButton(
+                  onPressed: () {
+                    Navigator.of(context).pop();
+                    openAppSettings();
+                  },
+                  child: const Text('SÍ'),
+                ),
+                TextButton(
+                  onPressed: () => Navigator.of(context).pop(),
+                  child: (opcion)? const Text('NO') : const Text('OK'),
+                )
+              ]
+          );
+        }
+    );
+  }
 }

pubspec.lock

@@ -216,6 +216,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.0"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      sha256: "2d070d8684b68efb580a5997eb62f675e8a885ef0be6e754fb9ef489c177470f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "12.0.0+1"
+  permission_handler_android:
+    dependency: transitive
+    description:
+      name: permission_handler_android
+      sha256: "1e3bc410ca1bf84662104b100eb126e066cb55791b7451307f9708d4007350e6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "13.0.1"
+  permission_handler_apple:
+    dependency: transitive
+    description:
+      name: permission_handler_apple
+      sha256: f000131e755c54cf4d84a5d8bd6e4149e262cc31c5a8b1d698de1ac85fa41023
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.4.7"
+  permission_handler_html:
+    dependency: transitive
+    description:
+      name: permission_handler_html
+      sha256: "38f000e83355abb3392140f6bc3030660cfaef189e1f87824facb76300b4ff24"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.3+5"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      sha256: eb99b295153abce5d683cac8c02e22faab63e50679b937fa1bf67d58bb282878
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.3.0"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      sha256: "1a790728016f79a41216d88672dbc5df30e686e811ad4e698bfc51f76ad91f1e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.1"
   plugin_platform_interface:
     dependency: transitive
     description:

pubspec.yaml

@@ -38,6 +38,7 @@ dependencies:
   file_picker: ^9.0.2
   uuid: ^4.5.1
   ffmpeg_kit_flutter: ^6.0.3
+  permission_handler: ^12.0.0+1
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

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

windows/flutter/generated_plugins.cmake

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