add settings page so set ssh login

request storage permissions on android

android/app/build.gradle

@@ -26,7 +26,7 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion flutter.compileSdkVersion
+    compileSdkVersion 33
     ndkVersion flutter.ndkVersion
 
     compileOptions {

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="eu.heili.gallery">
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <application
         android:label="gallery"
         android:name="${applicationName}"

lib/data_provider/data_provider.dart

@@ -6,6 +6,11 @@ class Item {
   String name;
 
   Item(this.isFolder, this.uri, this.name);
+
+  @override
+  String toString() {
+    return 'Item{isFolder: $isFolder, uri: $uri, name: $name}';
+  }
 }
 
 class Folder {

lib/data_provider/ssh_data_provider.dart

@@ -10,11 +10,11 @@ import 'dart:ui' as ui show Codec, ImmutableBuffer;
 import 'package:path_provider/path_provider.dart';
 
 class SSHDataProvider extends DataProvider {
-  final String host;
+  final Future<String> host;
-  final int port;
+  final Future<int> port;
-  final String username;
+  final Future<String> username;
-  final String password;
+  final Future<String> password;
-  final String initialPath;
+  final Future<String> initialPath;
 
   SftpClient? sftpClient;
   SSHClient? sshClient;
@@ -31,8 +31,8 @@ class SSHDataProvider extends DataProvider {
     if (sshClient != null && !sshClient!.isClosed) return;
 
     sshClient = SSHClient(
-      await SSHSocket.connect(host, port),
+      await SSHSocket.connect(await host, await port),
-      username: username,
+      username: await username,
       onPasswordRequest: () => password,
     );
     await sshClient?.authenticated;
@@ -45,7 +45,8 @@ class SSHDataProvider extends DataProvider {
     await connect();
     if (sftpClient == null) throw const FormatException("");
 
-    final dir = uri != null ? Directory.fromUri(uri) : Directory(initialPath);
+    final dir =
+        uri != null ? Directory.fromUri(uri) : Directory(await initialPath);
 
     final items = await sftpClient!.listdir(dir.path);
     List<Item> res = [];

lib/home_page.dart

@@ -1,8 +1,9 @@
 import 'dart:io';
 
 import 'package:flutter/material.dart';
-import 'package:gallery/data_provider/data_provider.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:gallery/image_grid.dart';
+import 'package:gallery/settings_page.dart';
 import 'package:path_provider/path_provider.dart';
 
 import 'data_provider/local_data_provider.dart';
@@ -17,7 +18,7 @@ class MyHomePage extends StatefulWidget {
   State<MyHomePage> createState() => _MyHomePageState();
 }
 
-enum Page { local, remote }
+enum Page { local, remote, settings }
 
 class _MyHomePageState extends State<MyHomePage> {
   Page page = Page.local;
@@ -34,19 +35,27 @@ class _MyHomePageState extends State<MyHomePage> {
   }
 
   Widget _buildPage() {
-    DataProvider provider;
-
     switch (page) {
       case Page.local:
-        provider = LocalDataProvider(_getLocalDir());
+        return ImageGrid(dProvider: LocalDataProvider(_getLocalDir()));
-        break;
       case Page.remote:
         // todo do not generate a new provider on each tab switch
-        provider = SSHDataProvider(
+        const storage = FlutterSecureStorage();
-            initialPath: "/", host: "", password: "", port: 0, username: "");
+
-        break;
+        return ImageGrid(
+            dProvider: SSHDataProvider(
+                initialPath:
+                    Future.value("/media/3TBRaid/3TBRaid/Bilder/2022/"),
+                host: (() async => (await storage.read(key: "host")) ?? "")
+                    .call(),
+                password:
+                    (() async => (await storage.read(key: "pwd")) ?? "").call(),
+                port: Future.value(22),
+                username: (() async => (await storage.read(key: "user")) ?? "")
+                    .call()));
+      case Page.settings:
+        return const SettingsPage();
     }
-    return ImageGrid(dProvider: provider);
   }
 
   @override
@@ -84,6 +93,15 @@ class _MyHomePageState extends State<MyHomePage> {
                 Navigator.pop(context);
               },
             ),
+            ListTile(
+              title: const Text('Settings'),
+              onTap: () {
+                setState(() {
+                  page = Page.settings;
+                });
+                Navigator.pop(context);
+              },
+            ),
           ],
         ),
       ),

lib/image_grid.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:flutter/material.dart';
 import 'data_provider/data_provider.dart';
 
@@ -41,13 +43,15 @@ class _ImageGridState extends State<ImageGrid> {
               gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                 crossAxisSpacing: 0,
                 mainAxisSpacing: 0,
-                crossAxisCount: width ~/ 300,
+                crossAxisCount:
+                    Platform.isAndroid ? width ~/ 100 : width ~/ 300,
               ),
               itemCount: data.items.length + 1,
               itemBuilder: (context, index) {
                 if (index == 0) {
                   return ImageTile(
-                    child: const Icon(Icons.arrow_back, size: 142),
+                    child: Icon(Icons.arrow_back,
+                        size: Platform.isAndroid ? 64 : 142),
                     onClick: () {
                       setState(() {
                         folder = widget.dProvider.listOfFiles(uri: data.parent);
@@ -93,7 +97,8 @@ class _ImageGridState extends State<ImageGrid> {
                         ? Column(
                             mainAxisAlignment: MainAxisAlignment.center,
                             children: [
-                              const Icon(Icons.folder_open, size: 142),
+                              Icon(Icons.folder_open,
+                                  size: Platform.isAndroid ? 64 : 142),
                               Text(elem.name)
                             ],
                           )

lib/main.dart

@@ -1,11 +1,21 @@
+import 'dart:io';
 import 'dart:ui';
 
 import 'package:flutter/material.dart';
+import 'package:permission_handler/permission_handler.dart';
 
 import 'home_page.dart';
 
-void main() {
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  if (Platform.isAndroid) {
+    if (await Permission.storage.request().isGranted) {
       runApp(const MyApp());
+    }
+  } else {
+    runApp(const MyApp());
+  }
 }
 
 class AppScrollBehavior extends MaterialScrollBehavior {

lib/settings_page.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class SettingsPage extends StatefulWidget {
+  const SettingsPage({Key? key}) : super(key: key);
+
+  @override
+  State<SettingsPage> createState() => _SettingsPageState();
+}
+
+class _SettingsPageState extends State<SettingsPage> {
+  late TextEditingController _controllerHost;
+  late TextEditingController _controllerUser;
+  late TextEditingController _controllerPwd;
+
+  @override
+  void initState() {
+    super.initState();
+    _controllerHost = TextEditingController();
+    _controllerUser = TextEditingController();
+    _controllerPwd = TextEditingController();
+
+    const storage = FlutterSecureStorage();
+    storage
+        .read(key: "host")
+        .then((value) => _controllerHost.text = value ?? "");
+    storage
+        .read(key: "user")
+        .then((value) => _controllerUser.text = value ?? "");
+    storage.read(key: "pwd").then((value) => _controllerPwd.text = value ?? "");
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(5),
+      child: Column(
+        children: [
+          const SizedBox(
+            height: 10,
+          ),
+          TextField(
+            decoration: const InputDecoration(
+                border: OutlineInputBorder(), labelText: "host"),
+            controller: _controllerHost,
+          ),
+          const SizedBox(
+            height: 5,
+          ),
+          TextField(
+            decoration: const InputDecoration(
+                border: OutlineInputBorder(), labelText: "user"),
+            controller: _controllerUser,
+          ),
+          const SizedBox(
+            height: 5,
+          ),
+          TextField(
+            obscureText: true,
+            decoration: const InputDecoration(
+                border: OutlineInputBorder(), labelText: "password"),
+            controller: _controllerPwd,
+          ),
+          const SizedBox(
+            height: 5,
+          ),
+          TextButton(
+              onPressed: () {
+                const storage = FlutterSecureStorage();
+                storage.write(key: "host", value: _controllerHost.value.text);
+                storage.write(key: "user", value: _controllerUser.value.text);
+                storage.write(key: "pwd", value: _controllerPwd.value.text);
+              },
+              child: const Text("Save"))
+        ],
+      ),
+    );
+  }
+}

linux/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,10 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <flutter_secure_storage_linux/flutter_secure_storage_linux_plugin.h>
 
 void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) flutter_secure_storage_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterSecureStorageLinuxPlugin");
+  flutter_secure_storage_linux_plugin_register_with_registrar(flutter_secure_storage_linux_registrar);
 }

linux/flutter/generated_plugins.cmake

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

pubspec.lock

@@ -111,11 +111,58 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
+  flutter_secure_storage:
+    dependency: "direct main"
+    description:
+      name: flutter_secure_storage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.0.0"
+  flutter_secure_storage_linux:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_linux
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  flutter_secure_storage_macos:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  flutter_secure_storage_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
+  flutter_secure_storage_web:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  flutter_secure_storage_windows:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   intl:
     dependency: transitive
     description:
@@ -214,6 +261,41 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.3"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "10.0.2"
+  permission_handler_android:
+    dependency: transitive
+    description:
+      name: permission_handler_android
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "10.0.0"
+  permission_handler_apple:
+    dependency: transitive
+    description:
+      name: permission_handler_apple
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "9.0.4"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.8.0"
+  permission_handler_windows:
+    dependency: transitive
+    description:
+      name: permission_handler_windows
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0"
   pinenacl:
     dependency: transitive
     description:

pubspec.yaml

@@ -38,6 +38,8 @@ dependencies:
   cupertino_icons: ^1.0.2
   path_provider: ^2.0.11
   dartssh2: ^2.7.2+3
+  permission_handler: ^10.0.2
+  flutter_secure_storage: ^6.0.0
 
 dev_dependencies:
   flutter_test: