fix: Android Download

android/app/build.gradle

@@ -44,7 +44,7 @@ android {
 
     defaultConfig {
         applicationId "chat.fluffy.fluffychat"
-        minSdkVersion 18
+        minSdkVersion 21
         targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
@@ -87,6 +87,4 @@ dependencies {
     implementation "net.zetetic:android-database-sqlcipher:4.4.0" // needed for moor_ffi w/ sqlcipher
 }
 
-if(file("google-services.json").exists() || System.getenv('CI')){
-    apply plugin: 'com.google.gms.google-services'
-}
+apply plugin: 'com.google.gms.google-services'

lib/utils/matrix_file_extension.dart

@@ -1,11 +1,14 @@
 import 'dart:io';
 
 import 'package:famedlysdk/famedlysdk.dart';
+import 'package:fluffychat/utils/platform_infos.dart';
 import 'package:flutter/foundation.dart';
 import 'package:open_file/open_file.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:universal_html/prefer_universal/html.dart' as html;
 import 'package:mime_type/mime_type.dart';
+import 'package:downloads_path_provider_28/downloads_path_provider_28.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 extension MatrixFileExtension on MatrixFile {
   void open() async {
@@ -24,9 +27,12 @@ extension MatrixFileExtension on MatrixFile {
       element.click();
       element.remove();
     } else {
-      final downloadsDir = Platform.isAndroid
-          ? (await getExternalStorageDirectory())
-          : (await getApplicationDocumentsDirectory());
+      if (!(await Permission.storage.request()).isGranted) return;
+      final downloadsDir = PlatformInfos.isDesktop
+          ? (await getDownloadsDirectory())
+          : Platform.isAndroid
+              ? (await DownloadsPathProvider.downloadsDirectory)
+              : (await getApplicationDocumentsDirectory());
 
       final file = File(downloadsDir.path + '/' + name.split('/').last);
       file.writeAsBytesSync(bytes);

lib/utils/platform_infos.dart

@@ -11,5 +11,8 @@ abstract class PlatformInfos {
   static bool get isBetaDesktop =>
       !kIsWeb && (Platform.isWindows || Platform.isLinux);
 
+  static bool get isDesktop =>
+      !kIsWeb && (Platform.isLinux || Platform.isWindows || Platform.isMacOS);
+
   static bool get usesTouchscreen => !isMobile;
 }

pubspec.lock

@@ -183,6 +183,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.0.3"
+  downloads_path_provider_28:
+    dependency: "direct main"
+    description:
+      name: downloads_path_provider_28
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0"
   encrypt:
     dependency: transitive
     description:
@@ -683,6 +690,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0-nullsafety.1"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.1+1"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   petitparser:
     dependency: transitive
     description:

pubspec.yaml

@@ -39,6 +39,8 @@ dependencies:
   # desktop_notifications: ^0.0.0-dev.4  // Currently blocked by: https://github.com/canonical/desktop_notifications.dart/issues/5
   matrix_link_text: ^0.3.1
   path_provider: ^1.5.1
+  downloads_path_provider_28: ^0.1.0
+  permission_handler: ^5.0.1+1
   webview_flutter: ^0.3.19+9
   share: ^0.6.3+5
   flutter_secure_storage: ^3.3.5