smartherd / flutter-demos Goto Github PK

you have made it sooo much complex pleas emake it bare bones simple like a basic todo app with very very few but easy code

The list view does not update when added a new note. but it updates when the app is closed and opened again

void moveToLastScreen() {
Navigator.pop(context, true);
}

═╡ EXCEPTION CAUGHT BY GESTURE ╞═
type 'bool' is not a subtype of type 'int' of 'result'

Some plugins are not compatible with androidx

The following NoSuchMethodError was thrown building NoteList(dirty, state: _NoteListState#e3e90):
The method 'initializeDatabase' was called on null.
Receiver: null
Tried calling: initializeDatabase()

The relevant error-causing widget was:
NoteList file:///E:/FlutterWorkspace/flutterfundoo/lib/services/authservice.dart:15:20
When the exception was thrown, this was the stack:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:54:5)
#1 _NoteListState.updateListView (package:flutterfundoo/activated/note_list.dart:185:54)
#2 _NoteListState.build (package:flutterfundoo/activated/note_list.dart:23:7)
#3 StatefulElement.build (package:flutter/src/widgets/framework.dart:4612:27)
#4 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4495:15)

https://github.com/smartherd/Flutter-Demos/blob/master/lib/utils/database_helper.dart

`class DatabaseHelper
{
DatabaseHelper _databaseHelper;
Database _database;

String noteTable = 'note_table';
String colId = 'id';
String colTitle = 'title';
String colDescreption = 'descreption';
String colDate = 'date';
String colPriorety = 'priorety';

DatabaseHelper._createInstance();

factory DatabaseHelper(){
if (_databaseHelper == null){
_databaseHelper = DatabaseHelper._createInstance();
}
return _databaseHelper;
}
}`

in the factory constructor, i get this error below.

{
"resource": "[......]/flutterapp/lib/utils/database_helper.dart",
"owner": "dart",
"code": "instance_member_access_from_factory",
"severity": 8,
"message": "Instance members can't be accessed from a factory constructor.",
"source": "dart",
"startLineNumber": 22,
"startColumn": 9,
"endLineNumber": 22,
"endColumn": 24,
"tags": []
}

what does this mean? and how to fix it?

I am getting this error:
'NoteDetail' isn't defined for the class 'NoteListState'.

• 'NoteListState' is from 'package:notes/screens/note_list.dart' ('lib/screens/note_list.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'NoteDetail'.

The function where this error originates is this one:
void navigateToDetail(String title) {
Navigator.push(context, MaterialPageRoute(builder: (context) {
return NoteDetail(title);
}));
}
}

I keep getting the following exception when I try to save the note to the database:

E/flutter (18356): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: DatabaseException(table note_table has no column named description (code 1 SQLITE_ERROR[1]): , while compiling: INSERT INTO note_table (title, description, priority, date) VALUES (?, ?, ?, ?)) sql 'INSERT INTO note_table (title, description, priority, date) VALUES (?, ?, ?, ?)' args [frdf, hrdgy, 2, Mar 27, 2020]}

how do i create a database inside the code instead of generate it from a keyboard input?

Hi, thanks for the wonderful tutorial.
I keep getting the error looking Up a deactivated widgets ancestor is unsafe. At this point the state of the element tree is no longer stable to safely refer to a widget's ancestor in it's dispose() method, save a reference to the ancestor by calling InheritFromWidgetOfExactType() in the widget's didChangeDependancies() method

This occurs during clicking save when creating a new note and it tries to pop back to the notelist view