saving progress. Switching to files. Lots of work ahead :)

Author: RobbertH

lib/HomePage.dart

@@ -1,10 +1,10 @@
 import 'package:flutter/material.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 import 'dart:io';
 import 'package:flutter_string_encryption/flutter_string_encryption.dart';
 import 'dart:async';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:shared_preferences/shared_preferences.dart'; // TODO get rid of this
 
 // TODO: encrypt notes and their titles
 // decrypt all titles (seperate file), to build the listView
@@ -31,7 +31,7 @@ class HomePage extends StatefulWidget {
 }
 
 class HomePageState extends State<HomePage> {
-  // DECLARATIONS
+
   final GlobalKey<ScaffoldState> _scaffoldState = new GlobalKey<ScaffoldState>();
 
   final _storage = new FlutterSecureStorage(); // to securely store the salt
@@ -55,9 +55,11 @@ class HomePageState extends State<HomePage> {
     debugPrint(_generatedKey);
   }
 
-  void _loadIDsFromMemory() async {
-    SharedPreferences prefs = await SharedPreferences.getInstance();
-    setState( () => _noteIDs = new Set.from(prefs.getStringList("noteIDs")) ?? new Set());
+  void _loadIDsFromMemory() async { // TODO fix this!!!!! test this!!!!!
+    String _noteIDsString = await readTitles();
+    String separator = "\$";
+    List<String> _noteIDsList = _noteIDsString.split(separator);
+    setState( () => _noteIDs = new Set.from(_noteIDsList) ?? new Set());
   }
 
   @override
@@ -116,7 +118,7 @@ class HomePageState extends State<HomePage> {
           new ListTile(
             leading: new Icon(Icons.library_books),
             title: new Text("aj"),
-            onTap: () => Navigator.of(context).pushNamed("/noteEditor/aj"),
+            onTap: readTitles,
           ),
           new ListTile(
             leading: new Icon(Icons.exit_to_app),
@@ -128,32 +130,29 @@ class HomePageState extends State<HomePage> {
     );
   }
 
-  Future<String> get _localPath async {
-    final directory = await getApplicationDocumentsDirectory();
-    return directory.path;
-  }
-
-  Future<File> get _titleFile async {
-    final path = await _localPath;
-    return new File('$path/note_titles.txt');
-  }
-
-  Future<File> writeTitles(String titles) async {
-  final file = await _titleFile;
-  return file.writeAsString('$titles'); // Write the file
+  void writeTitles(String titles) async {
+    final path = (await getApplicationDocumentsDirectory()).path;
+    final file = new File('$path/note_titles.txt');
+    file.writeAsString('$titles'); // Write the file
 }
 
-  Future<int> readCounter() async {
+  Future<String> readTitles() async {
     try {
-      final file = await _titleFile;
+      final path = (await getApplicationDocumentsDirectory()).path;
+      final file = new File('$path/note_titles.txt');
       String contents = await file.readAsString(); // Read the file
-      return int.parse(contents);
+      debugPrint("he");
+      debugPrint(contents);
+      return contents;
     }
-    catch (e) {
-      return 0; // If we encounter an error, return 0
+    catch (e) { // No file yet
+      debugPrint("er");
+      return ""; // If we encounter an error, return empty str
     }
   }
 
+  
+
 
 
 }

lib/LoginPage.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:flutter_string_encryption/flutter_string_encryption.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 import 'package:crypt/crypt.dart';
 
 // TODO: animated feedback when decrypting (spinning loader or something)

lib/NoteEditor.dart

@@ -1,5 +1,10 @@
 import 'package:flutter/material.dart';
-import 'package:shared_preferences/shared_preferences.dart';
+import 'dart:async';
+import 'dart:io';
+import 'package:path_provider/path_provider.dart';
+
+// TODO: make a separate file for a class Note, with ID, encryptedTitle, encryptedContent
+// TODO: and methods to decrypt them using a supplied password
 
 class NoteEditor extends StatefulWidget {
   final String id;
@@ -24,7 +29,6 @@ class NoteEditorState extends State<NoteEditor> {
   static String _note;
   bool _editorMode = false;
 
-
   TextEditingController _textController = new TextEditingController(text: _note);
 
   @override
@@ -34,8 +38,8 @@ class NoteEditorState extends State<NoteEditor> {
   }
 
   void _loadNoteFromMemory() async {
-    SharedPreferences prefs = await SharedPreferences.getInstance();
-    setState( () => _note = prefs.getString(id) ?? "An error occurred. ID not found." );
+    String dummy = await readNote(id); // dummy needed to await
+    setState( () => _note = dummy);
     _textController.text = _note;
   }
 
@@ -91,8 +95,42 @@ class NoteEditorState extends State<NoteEditor> {
   }
 
   void _writeNoteToMemory(String value) async {
-    SharedPreferences prefs = await SharedPreferences.getInstance();
-    setState( () => prefs.setString(id, value));
+    bool succeeded = await writeNote(id, value);
+    if (succeeded) {
+      debugPrint("written!");
+    }
   }
 
+  // TODO write titles? set?
+
+  Future<bool> writeNote(String noteID, String noteContent) async {
+    final path = (await getApplicationDocumentsDirectory()).path;
+    final file = new File('$path/${noteID}.txt');
+    try {
+      file.writeAsString('$noteContent'); // Write the file
+      return true;
+    }
+    catch (e) {
+      debugPrint("damn :(");
+      return false;
+    }
+  }
+
+  Future<String> readNote(String noteID) async {
+    try {
+      final path = (await getApplicationDocumentsDirectory()).path;
+      final file = new File('$path/${noteID}.txt');
+      String contents = await file.readAsString(); // Read the file
+      debugPrint("he");
+      debugPrint(contents);
+      return contents;
+    }
+    catch (e) { // No file yet
+      //writeNote(noteTitle, "");
+      debugPrint("er");
+      return ""; // If we encounter an error, return empty str
+    }
+  }
+
+
 }

lib/main.dart

@@ -5,7 +5,7 @@ import 'LoginPage.dart';
 import 'NoteEditor.dart';
 
 void main() => runApp(new MaterialApp(
-  home: new LoginPage(),
+  home: new HomePage(),
   onGenerateRoute: (RouteSettings settings) {
     if (settings.name == "/"){
       return new CustomRoute(