fix: try request grant external storage on Android (#660)

ui/flutter/android/app/src/main/AndroidManifest.xml

@@ -2,9 +2,15 @@
     package="com.gopeed">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
     <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <application
+        android:requestLegacyExternalStorage="true"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher"
         android:label="Gopeed"

ui/flutter/lib/app/views/directory_selector.dart

@@ -1,16 +1,20 @@
 import 'dart:io';
 
+import 'package:device_info_plus/device_info_plus.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:lecle_downloads_path_provider/lecle_downloads_path_provider.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:toggle_switch/toggle_switch.dart';
 
 import '../../util/mac_secure_util.dart';
 import '../../util/message.dart';
 import '../../util/util.dart';
 
+final deviceInfo = DeviceInfoPlugin();
+
 class DirectorySelector extends StatefulWidget {
   final TextEditingController controller;
   final bool showLabel;
@@ -68,12 +72,26 @@ class _DirectorySelectorState extends State<DirectorySelector> {
             if (index == 0) {
               return false;
             }
-            // Check write permission
+
             final downloadDir =
                 (await DownloadsPath.downloadsDirectory())?.path;
             if (downloadDir == null) {
               return true;
             }
+
+            // Check and request external storage permission when sdk version < 30 (android 11)
+            if ((await deviceInfo.androidInfo).version.sdkInt < 30) {
+              var status = await Permission.storage.status;
+              if (!status.isGranted) {
+                status = await Permission.storage.request();
+                if (!status.isGranted) {
+                  showErrorMessage('noStoragePermission'.tr);
+                  return true;
+                }
+              }
+            }
+
+            // Check write permission
             final fileRandomeName =
                 "test_${DateTime.now().millisecondsSinceEpoch}.tmp";
             final testFile = File('$downloadDir/Gopeed/$fileRandomeName');

ui/flutter/pubspec.lock

@@ -241,6 +241,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.4.4"
+  device_info_plus:
+    dependency: "direct main"
+    description:
+      name: device_info_plus
+      sha256: "77f757b789ff68e4eaf9c56d1752309bd9f7ad557cb105b938a7f8eb89e59110"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.1.2"
+  device_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_plus_platform_interface
+      sha256: "282d3cf731045a2feb66abfe61bbc40870ae50a3ed10a4d3d217556c35c8c2ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
   dio:
     dependency: "direct main"
     description:
@@ -709,6 +725,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.0"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      sha256: "18bf33f7fefbd812f37e72091a15575e72d5318854877e0e4035a24ac1113ecb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.3.1"
+  permission_handler_android:
+    dependency: transitive
+    description:
+      name: permission_handler_android
+      sha256: "76e4ab092c1b240d31177bb64d2b0bea43f43d0e23541ec866151b9f7b2490fa"
+      url: "https://pub.dev"
+    source: hosted
+    version: "12.0.12"
+  permission_handler_apple:
+    dependency: transitive
+    description:
+      name: permission_handler_apple
+      sha256: e6f6d73b12438ef13e648c4ae56bd106ec60d17e90a59c4545db6781229082a0
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.4.5"
+  permission_handler_html:
+    dependency: transitive
+    description:
+      name: permission_handler_html
+      sha256: "54bf176b90f6eddd4ece307e2c06cf977fb3973719c35a93b85cc7093eb6070d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.1"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      sha256: fe0ffe274d665be8e34f9c59705441a7d248edebbe5d9e3ec2665f88b79358ea
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.2.2"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      sha256: "1a790728016f79a41216d88672dbc5df30e686e811ad4e698bfc51f76ad91f1e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.1"
   petitparser:
     dependency: transitive
     description:

ui/flutter/pubspec.yaml

@@ -67,6 +67,8 @@ dependencies:
   launch_at_startup: ^0.2.2
   args: ^2.5.0
   toggle_switch: ^2.3.0
+  permission_handler: ^11.3.1
+  device_info_plus: ^9.1.2
 dev_dependencies:
   flutter_test:
     sdk: flutter