Steps used in building a ToDo Application
Below are all the steps to build a ToDo Application using Flutter:
- Project Setup: Use your favorite IDE or command-line tools to create a new Flutter project.
- UI Design: Create the ToDo app’s user interface. Think of components such as navigation, buttons, input areas, and task lists.
- State Management: Use state management to manage assignments and their respective states (finished or in progress). For effective state management, Flutter offers a variety of solutions, such as setState, Provider, Bloc, or Riverpod.
- Data Persistence: Consolidate tasks between app sessions by integrating local storage. For this, Flutter offers plugins like shared_preferences and SQLite.
- User Interactions: Add, update, delete, and mark as finished functions to the task list. Respond to user input and make necessary UI updates.
- Navigation: Navigating between several screens, like a list of chores and a screen for adding or amending tasks, should be implemented.
- Testing and Debugging: Make sure your software is fully functional across a range of platforms and devices. Troubleshoot any problems that surface while testing.
- Deployment: After your ToDo app is prepared, release it to the appropriate platforms, including the web, iOS, and Android.
Simple ToDo Application using Flutter Example:
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: HomeScreen(),
debugShowCheckedModeBanner: false,
theme: ThemeData(primarySwatch: Colors.indigo),
);
}
}
class HomeScreen extends StatefulWidget {
const HomeScreen({super.key});
@override
State<HomeScreen> createState() => _HomeScreenState();
}
class _HomeScreenState extends State<HomeScreen> {
List todoList = [];
String singlevalue = "";
addString(content) {
setState(() {
singlevalue = content;
});
}
addList() {
setState(() {
todoList.add({"value": singlevalue});
});
}
deleteItem(index) {
setState(() {
todoList.removeAt(index);
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
"Todo Application",
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 25,
),
),
centerTitle: true,
toolbarHeight: 75,
leading: IconButton(
icon: Icon(Icons.menu),
onPressed: () {},
),
elevation: 0,
),
body: Container(
margin: EdgeInsets.all(10),
child: Column(
children: [
Expanded(
flex: 90,
child: ListView.builder(
itemCount: todoList.length,
itemBuilder: (context, index) {
return Card(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15),
),
color: Colors.blue[900],
child: SizedBox(
height: 50,
width: double.infinity,
child: Container(
margin: EdgeInsets.only(left: 20),
alignment: Alignment.center,
padding: EdgeInsets.all(10),
child: Row(
children: [
Expanded(
flex: 80,
child: Text(
todoList[index]['value'].toString(),
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
Expanded(
flex: 20,
child: CircleAvatar(
radius: 30,
backgroundColor: Colors.white,
child: TextButton(
onPressed: () {
deleteItem(index);
},
child: Icon(
Icons.delete,
color: Colors.black,
),
),
)),
],
),
),
),
);
}),
),
Expanded(
flex: 10,
child: Row(
children: [
Expanded(
flex: 70,
child: Container(
height: 40,
child: TextFormField(
onChanged: (content) {
addString(content);
},
decoration: InputDecoration(
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(15),
),
fillColor: Colors.blue[300],
filled: true,
labelText: 'Create Task....',
labelStyle: TextStyle(
color: Colors.indigo[900],
fontWeight: FontWeight.bold,
)),
),
),
),
Expanded(
flex: 3,
child: SizedBox(
width: 5,
)),
Expanded(
flex: 27,
child: ElevatedButton(
onPressed: () {
addList();
},
child: Container(
height: 15,
width: double.infinity,
alignment: Alignment.center,
child: Text("Add")),
)),
],
)),
],
),
),
);
}
}
Output :
How to Build a ToDo Application in Flutter?
Flutter offers a stable framework for constructing richly UI-driven cross-platform applications. In this article, we will learn to build a ToDo Flutter Application.
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