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Smoke Testing In Flutter

Shaiq Khan
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0
Smoke Testing In Flutter

Hi everyone! today we start learning about smoke testing in a flutter, Smoke tests take your code, build it, run it, and verify a thing or two. They will not verify that your software is 100% functional and correct. In a production app, they will act as a quick bailout — if the smoke test fails, the whole build fails. And it does so quickly.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

A Complete Guide to Smoke Testing in Software QA

What Is Smoke Testing in Software Testing?

Features of Smoke Testing

When To Perform a Smoke Test in a flutter

How To Plan a Smoke Test in a flutter

Types of Smoke Tests

Advantages of Smoke Testing

Best Tools for Smoke Testing

Conclusion

A Complete Guide to Smoke Testing in Software QA:

The expression “smoke test” was lifted from the development industry. During this test, water pipelines would be loaded up with smoke to check whether there were any leaks and other underlying issues.

In the tech business, smoke tests were first utilized for equipment testing. In this test, equipment sheets were tried to see whether they would smoke whenever they were connected and turned on. In the event that they transmitted smoke, they would bomb the tests and be promptly turned off. On the off chance that they didn’t, they’d continue on toward the following round of testing.

Smoke testing assumes a comparable part in programming improvement and programming quality affirmation — yet without the strict smoke.

What Is Smoke Testing in Software Testing?

Smoke testing is an essential piece of creating applications and quality confirmation. It is the primary line of protection against defective code in introductory programming fabricates. Smoke tests aren’t utilized to investigate assembles — they are utilized to see if the forms are working in any case.

Not at all like other QA tests that are comprehensive and check the general code, smoke tests are quick and focused. Profoundly or basic elements of the composting program are working appropriately.

Expecting that any of the basic features or components of the item aren’t working, then, the structure is immediately excused or patched up. Testing simply the key functionalities of the item helps save with timing, effort, and costs. Along these lines, smoke tests can help with working on your benefit from speculation on the item.

All things considered, in the event that there is a mistake with the basic region of the form, it would be an exercise in futility to really look at its other, less significant capacities. It would likewise be a loss to keep chipping away at the ongoing form too.

Features of Smoke Testing:

Smoke testing is additionally called build verification testing or build acknowledgment testing. The tests confirm whether the principal functions of the underlying form are working precisely. The build might be acknowledged for the following series of QA tests or dismissed out and out in view of the outcomes.

Smoke tests are now and again additionally alluded to as admission tests, as they choose the following round of testing. There are a few viewpoints engaged with smoke testing. These viewpoints or elements separate smoke testing from different kinds of QA tests.

Some of the key features of smoke testing are as follows:

  • > Quick to run: Just the significant elements or basic functionalities of the form are tried. It typically requires as long as an hour to complete a smoke test.
  • > Flexible: Smoke testing should be possible physically or through robotized processes.
  • > Non-exhaustive: These tests include an extremely predetermined number of experiments. Notwithstanding, they ought to in any case be fit for revealing fundamental mistakes in new forms.
  • > Broad coverage testing: Applicable to different levels of software testing, including integration testing, acceptance testing, and system testing.
  • > Easy to test: Smoke tests should also be easily executed by developers to improve QA processes.

When To Perform a Smoke Test in a flutter:

A smoke test is performed toward the start of the product advancement life cycle or SDLC process. This test ought to generally be finished with any recently finished form or delivery that is incorporated with existing programming.

As such, smoke tests are performed before any detailed regression or functional testing. By directing smoke tests from the get-go in the SDLC, developers or QA analysts can rapidly confirm the form quality and undertaking execution.

Builds with any errors are quickly sent back to development before any time is wasted with tests that are more exhaustive.

How To Plan a Smoke Test in a flutter:

A smoke test might be manual, automated, or a blend of the two. Regardless of what kind of smoke test you choose to lead, the arranging stage remains by and large something almost identical.

Here are some key tips for planning and running a smoke test:

  • > Prepare for testing: Make a point to set the favored air for the smoke test. This includes setting up any documents, servers, and licenses you might require for the test. Make duplicates of your documents and work, also, so you have reinforcements in the event that anything occurs.
  • > Collect all necessary files: Get all the form or code records you will require for the test.
  • > Write test script: Utilize a solitary content to run the tests. Besides, guarantee that your content is composed so it makes and saves a report after each test. Along these lines, any form of disappointment can be appropriately and precisely answered by the engineers.
  • > Clean data: Ensure your trials are in a perfect climate. Eliminate any unessential documents that might influence the smoke test. This additionally incorporates halting the waiter and exhausting data set tables.

Types of Smoke Tests:

There are three different ways developers and QA engineers can lead smoke testing. The kind of smoke test utilized may rely upon the builds you really want to test, time imperatives, or your own inclination.

  • > Manual tests: This is the most widely recognized sort of smoke testing. This technique tests each underlying form or any new highlights added to existing forms. In the manual technique, you should alter or refresh your test scripts in light of each test prerequisite. At times, you might have to make totally new scripts.
  • > Automated tests: Automation smoke testing permits you to test bunches of beginning forms. Utilizing a mechanization device for smoke testing is ideal when you have restricted time before assemble sending.
  • > Hybrid tests: As its name proposes, half-breed tests are a blend of both manual and computerized smoke tests. Joining the two sorts can support the general presentation of the testing.

Advantages of Smoke Testing:

Smoke testing is an urgent part of the software development process. Starter testing offers various advantages, for example,

  • > Detects bugs early in the development phase
  • > Conducting smoke tests early on helps you ensure the quality of your programs. You can quickly determine which builds need to go back to the drawing board.
  • > Improves effectiveness of QA team.
  • > Why waste time, effort, and manpower testing minor functions if the main purpose of the software already doesn’t perform as intended? By testing only the core functionalities of your build, you can quickly determine whether it would work as intended. This way, your QA team can move on to other projects and tests.
  • > Helps make the QA process highly effective
  • > Uncovering obvious errors immediately saves time and effort for your QA team. It helps streamline the QA process. Additionally, it can promote confidence and job satisfaction among the QA teams.

Best Tools for Smoke Testing:

There are several tools you can use to perform smoke testing. Coming up next are two of the best and most well known apparatuses for mechanized smoke tests:

  • > Selenium: Selenium is utilized widely in the product testing industry as a computerization apparatus. It is an open-source mechanization device and can run utilizing JavaScript. You can perform and get results for up to 250 experiments within three to four hours. Tests led utilizing selenium can be recorded and replayed in a similar climate as the product.
testWidgets('smoke test', (WidgetTester tester) async {
final app = MyApp();
await tester.pumpWidget(app); expect(find.text("0"), findsOneWidget); await tester.tap(find.byIcon(Icons.add));
await tester.pump(); expect(find.text("1"), findsOneWidget);
});
  • > PhantomJS: PhantomJS is the favored robotized smoke testing device for web applications, as long as your tests aren’t broad. It upholds a few web guidelines and works flawlessly with the advancement work process. You can chop down the testing time by 66% by utilizing PhantomJS. Besides, you can utilize this device to perform manual testing simpler, too.

Conclusion:

Quality assurance is an essential advance during the software development life cycle. You can’t place only anyone in control to obtain ideal outcomes and great forms. Individuals accountable for your QA cycle need more than preparing — they need insight and devotion.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Convert Object To Json In Dart & Flutter

Shaiq Khan
-
0
Convert Object To Json In Dart & Flutter

In this article, we will explore the Convert Object To Json In Dart & Flutter. We see how to execute a demo program. We will tell you the two ways to Convert objects to Json in your Dart & Flutter applications.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

Using without package

Using json_serializable package

Conclusion

Using without package

This approach includes physically composing functions to convert your Dart object to and from JSON. Here you have full command over the serialization cycle.

Steps:

  • Define your class.
  • Create a method inside the class to convert the object into a Map.
  • Convert the Map object to a JSON string using the jsonEncode() function from the dart:convert library.
import 'dart:convert';
import 'package:flutter/foundation.dart' show debugPrint;

class User {
  final String name;
  final int age;
  final bool isAdult

  User(this.name, this.age, this.isAdult);

  Map<String, dynamic> toJson() {
    return {
      'name': name,
      'age': age,
      "isAdult": isAdult,
    };
  }
}

void main() {
  User user = User('Ray Thomas', 28, true);
  String jsonString = jsonEncode(user.toJson());
  debugPrint(json String);
}

When we run the application, we ought to get the screen’s output like the underneath screen Console Output.

{"name":"Ray Thomas","age":28,"isAdult":true}

This method is adaptable and requires no outer dependencies or packages. The tradeoff is that you need to think of some additional code and the rationale might change on various use cases. As the intricacy of your objects increases, the manual execution can become error-prone and inefficient.

Using json_serializable package

This arrangement involves the json_serializable package that gives code age to JSON serialization and deserialization. In the accompanying model, we’ll characterize a Client class that is more confounded than the one you’ve found in the preceding example. This time, we’ll place the class in a different document named user. dart.

Steps:

  • Install the json_annotation, json_serializable, and build_runner packages by executing this command.
flutter pub add json_annotation json_serializable build_runner

Then run this one:

flutter pub get
  • In the lib directory of your Flutter project, add a new file called user.dart. Define the User class with the @JsonSerializable() annotation like so:
// lib/user.dart
import 'package:json_annotation/json_annotation.dart';

part 'user.g.dart';

@JsonSerializable()
class User {
  String name;
  int age;
  @JsonKey(name: 'is_author')
  bool isAuthor;

  User(this.name, this.age, this.isAuthor);
  Map<String, dynamic> toJson() => _$UserToJson(this);
  factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
}
  • Build the JSON serialization code with build_runner by performing the following command
dart run build_runner build

A new file named user.g.dart will be automatically generated in your lib folder:

// GENERATED CODE - DO NOT MODIFY BY HAND

part of 'user.dart';

// **************************************************************************
// JsonSerializableGenerator
// **************************************************************************

User _$UserFromJson(Map<String, dynamic> json) => User(
      json['name'] as String,
      json['age'] as int,
      json['is_admin'] as bool,
    );

Map<String, dynamic> _$UserToJson(User instance) => <String, dynamic>{
      'name': instance.name,
      'age': instance.age,
      'is_author': instance.isAthor,
    };

Use the generated toJson() method to convert the object or a list of objects to a JSON string. You can also use the generated fromJson() method to convert a JSON string back to an object or a list of objects.

// lib/main.dart
import 'dart:convert' show jsonEncode;
import 'package:flutter/foundation.dart' show kDebugMode;
import 'user.dart';

void main() {
  User user = User('Roy Thomas', 28, true);

  Map<String, dynamic> jsonUser = user.toJson();

  if (kDebugMode) {
    print(jsonEncode(jsonUser));
    // Prints: {"name":"Roy Thomase","age":28,"is_author":true}
  }

  List<User> users = [
    User('FlutterFevs.com', 33, true),
    User('Sam Fand', 22, false),
    User('Allen', 30, false),
  ];
  List<Map<String, dynamic>> jsonUsers =
      users.map((user) => user.toJson()).toList();

  if (kDebugMode) {
    print(jsonEncode(jsonUsers));
    // Prints: [{"name":"FlutterFevs.com","age":33,"is_admin":true},{"name":"Sam Fand',"age":22,"is_admin":false},{"name":"Allen","age":30,"is_admin":false}]
  }
}

This approach supports converting nested objects and complex types such as dates or enums to JSON strings with annotations. However, it requires adding a bunch of external dependencies and packages to your project. You’ll also have to run  a command to generate the code for the toJson() and fromJson() methods every time you make changes to your classes.

Conclusion:

In the article, I have explained the Convert Object To Json In Dart & Fluttert; you can modify this code according to your choice. This was a small introduction to Convert Object To Json In Dart & Flutter User Interaction from my side, and it’s working using Flutter.

I hope this blog will provide you with sufficient information on Trying the Convert Object To Json In Dart & Flutter of your projects. We’ve examined two different ways to turn a class object into JSON. The first one is quick and works well for simple use cases. The second one is powerful and shines with complex data structures. So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a Flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! For any flutter-related queries, you can connect with us on Facebook, GitHub, Twitter, and LinkedIn.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Sanity Testing In Flutter

Shaiq Khan
-
0
Sanity Testing In Flutter

Sanity Testing is performed to test the minor fixes on the application and to make sure the application is good & running with all the vital functionalities up for perfection. Sanity Testing is not necessarily included in all the testing life cycles.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

Sanity Testing Definition

What is a Sanity Test?

What is a Sanity Test in Flutter?

What are the benefits of Sanity Testing in Flutter?

Features of Sanity Testing in Flutter

How To Do Sanity Testing In Flutter Application?

Why Are Sanity Test Cases Important?

Sanity Test Case Examples

Automated Sanity Tests

Conclusion

Sanity Testing Definition:

Let’s start with this working definition of sanity testing, which also describes both the meaning of sanity testing and the purpose of sanity testing:

Sanity testing is a fast and essential test (or set of tests) to decide whether a specific application or part is acting sensibly accurately. Sanity tests are frequently less in number and more engaged than regression tests. However, it is typical for regression tests to begin as Sanity tests.

What is a Sanity Test?:

A Sanity test is many times a fast mind something to check whether it seems OK at an essential, superficial. A sanity test may be one fast test, for example, an estimation check. For instance, assuming you are trying the checkout and installment capacity of a versatile application, you need to ensure charges are registered accurately. Suppose you realize the expense rate is 9.95%.

You might run a fast test to purchase something and afterward pay for it. You check the pre-charge absolute, then the after-charge complete. To you, you anticipate that the assessment should be roughly 10% of the price tag, a simple computation to make.
Is this a precise computation? No. In any case, the first idea of sanity from different disciplines is that of an estimation just to check whether the fundamental capacity for the most part appears to be legit.

What is a Sanity Test in Flutter?:

Flutter testing is an excellent chance for sanity tests, however, it is essential to comprehend that sanity tests can likewise be performed by designers. All in all, you don’t need to trust that a free analyzer will play out a product sanity test.

In Flutter testing, sanity tests can be an early type of testing, either casually or officially.

What are the benefits of Sanity Testing in Flutter?:

The benefits of Sanity Testing in flutter are listed below:

  • > Sanity Testing helps to avoid wastage of time.
  • > Sanity Testing helps to save cost in testing even if the build failed.
  • > In this type of testing, the tester directly rejects build upon failure

Features of Sanity Testing in Flutter:

Some distinguishing features of sanity tests in flutter are:

  • > Simple — Sanity tests are not planned to be complex yet all things considered, effectively planned and performed.
  • > Defined or exploratory — Sanity tests likely could be predefined in an organization like an agenda, or set of basic experiments. However, there is additionally a typical act of performing sanity tests in light of instinct and experience.
  • > Comprehensive enough — Sanity tests don’t cover all usefulness, however they ought to cover to the point of giving an essential appraisal of conduct.
  • > Quick — When contrasted with different types of testing which might be led later, sanity tests are planned to be performed rapidly with the end goal of speedy criticism. The speed of input is significant in a quick turn of events and persistent coordination to be aware assuming further advancement is conceivable.

How To Do Sanity Testing In Flutter Application?:

While sanity testing is some of the time acted in an exploratory methodology, there is incredible worth in having repeatable sanity tests. This infers planned an arranged strategy.

There are two levels of test planning to perform in the sanity testing: High-level sanity test planning and detailed sanity test planning. We will explore both of these levels of test planning.

> High-Level Sanity Planning:

At the high level of sanity test planning, the big picture is defined. This includes defining:

  • > Sanity test objectives
  • > The scope of sanity testing
  • > Risks
  • > Features to be covered in sanity testing
  • > Roles and responsibilities

> Detailed Sanity Planning:

At the detailed level, you are concerned about characterizing sanity test cases that accomplish the targets and cover the highlights framed at the elevated degree of sanity test planning.

Fortunately, itemized test examination and configuration are not needed for sanity test cases. The entire idea is one of straightforwardness that gives a degree of certainty that the application is performing accurately at a fundamental level.

Why Are Sanity Test Cases Important?:

Sure, you could perform a few sanity tests manually in an ad-hoc manner. However, there is a hidden cost in this approach due to the extra time and effort needed to think of good tests, then evaluate those test results. Sometimes, the test evaluation requires some research to determine what is correct behavior.

In the ad-hoc sanity test approach, every test is in the moment and tends to fade away shortly after the test. Then, the next time you need to test the same application, you have to try to remember as many of the sanity tests as possible. That is an elusive goal.

Defining sanity tests is an investment of time and effort. But, the payback is seen in the ease of repeating the tests reliably. This is especially true when sanity tests are automated.

Sanity Test Case Examples:

There is a defect in the login page when the password field accepts less than four alphanumeric characters and the requirement mentions that this password field should not be below eight characters. Hence, the defect is reported by the testing team to the development team to resolve it.

Sanity test cases for validating Sign Up functionality quickly:

  1. Sign up option is available on the login page.
  2. Clicking “Sign up” redirects the user to the appropriate sign-up form.
  3. The user can fill in details in all the mandatory fields of the sign-up form.
  4. The user can submit “Sign up” without any error.
  5. The user can access the account by using the credentials provided during sign-up.

Automated Sanity Tests:

It would probably not make sense to automate first-time, ad-hoc sanity tests. The main reason is that it would take away from the quick and simple nature of the test. It typically takes much more time to create the automation for a test as compared to one manual test execution.

In this scenario, you would not have time to automate the sanity test for the job at hand. However, you could certainly document the sanity test, even if only on paper, to demonstrate it as a test case. If the test has value you might consider adding it to a sanity test set for future test runs.

As a contrasting example, perhaps you are working on a project where you get a daily build and you have identified at least 20 functions that must work at a very basic level before running a more complete regression test. These functions are subject to changes in the way they behave, so you want to know about any problems as soon as possible.

Conclusion:

QA team uses Sanity testing as a decision criterion for accepting or rejecting the build. Although, it should be quick enough to complete yet should consist of test scenarios to validate the new functionality or bug fix of the build.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a Flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

PDF Document View & Download In Flutter

Shaiq Khan
-
0
PDF Document View & Download In Flutter

In Flutter different elements make your application wealthy in functionality and give simplicity to the client to do stuff inside the application and get a better client experience, being a service provider is likewise vital for designers.

These little yet significant functionalities like getting pictures and videos from the gallery, opening maps, and automatic OTP autofill, are a few significant highlights that make any application easy to utilize and in this article, we will make sense of fundamental yet significant functionality named PDF Document View.

There are various packages that you can use to open a pdf in your application and download it to your local storage some are a piece muddled and some are not difficult to execute, and here I will clarify perhaps the most straightforward way to use it.

In this article, we will explore the PDF View & Download In Flutter. We will see how to implement a demo program. Learn how to view pdf and download it to your local storage using a network or locally stored file in your flutter applications.

For PDF View:

flutter_pdfview | Flutter Package
Native PDF View for iOS and Android Add this to your package’s pubspec.yaml file: dependencies: flutter_pdfview: ^1.2.1…pub.dev

For PDF Download (to your local storage):

path_provider | Flutter Package
A Flutter plugin for finding commonly used locations on the filesystem. Supports Android, iOS, Linux, macOS, and…pub.dev

For Network PDF’s :

dio | Dart Package
Language: English | 中文简体 A powerful Http client for Dart, which supports Interceptors, Global configuration, FormData…pub.dev

For Local PDF’s :

file_picker | Flutter Package
A package that allows you to use the native file explorer to pick single or multiple files, with extensions filtering…pub.dev

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

Introduction

Implementation

Code Implement

Conclusion

GitHub Link

Introduction:

The demo video below shows how to implement PDF view and download in flutter and shows how we can access PDFs from both networks and locally in your flutter application. We will show a sample PDF when clicking on the button “Load a file from the network” if the user wishes to download this PDF he has an option in the top right corner of the app bar to save the file in the storage. The user can also view already downloaded PDFs from his storage with another button “Pick a file from local”.

Demo Module::

Implementation:

Step 1: Add the dependencies

Add dependencies to pubspec — yaml file.

dependencies:
flutter:
sdk: flutter
dio: ^4.0.6
file_picker: ^4.5.1
flutter_pdfview: ^1.2.2
path_provider: ^2.0.10

Step 2: Import

import 'package:flutter_pdfview/flutter_pdfview.dart';
import 'package:path_provider/path_provider.dart';
import 'package:dio/dio.dart';
import 'package:file_picker/file_picker.dart';

Step 3: Run flutter packages get in the root directory of your app.

How to implement code in dart file :

You need to implement it in your code respectively:

Create a new dart file called pdf_viewer_page.dart inside the lib folder.

We will create a PDF viewer page which will be a stateful widget, which will be responsible for viewing PDFs in our app.

Widget build(BuildContext context) {
final name = basename(widget.file.path);
return Scaffold(
appBar: AppBar(
title: Text(name),
actions: [
IconButton(
onPressed: () async {
await saveFile(widget.url, "sample.pdf");
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text(
'success',
style: TextStyle(color: Colors.white),
),
),
);
},
icon: const Icon(Icons.download_rounded),
),
],
),
body: PDFView(
filePath: widget.file.path,
),
);
}

Also, we will create a saveFile() function to save the file locally in our internal storage, we will pass the URL of the PDF file and a name to save it as.

Future<bool> saveFile(String url, String fileName) async {
try {
if (await _requestPermission(Permission.storage)) {
Directory? directory;
directory = await getExternalStorageDirectory();
String newPath = "";
List<String> paths = directory!.path.split("/");
for (int x = 1; x < paths.length; x++) {
String folder = paths[x];
if (folder != "Android") {
newPath += "/" + folder;
} else {
break;
}
}
newPath = newPath + "/PDF_Download";
directory = Directory(newPath);

File saveFile = File(directory.path + "/$fileName");
if (kDebugMode) {
print(saveFile.path);
}
if (!await directory.exists()) {
await directory.create(recursive: true);
}
if (await directory.exists()) {
await Dio().download(
url,
saveFile.path,
);
}
}
return true;
} catch (e) {
return false;
}
}

Now, inmain.dartinside thelibfolder.

We will give the user two ElevatedButton() i.e. “Pick a file from local” & “Load file from the network”, then we will create two separate functions, pickFile() and loadFromNetwrok() which link to each of the two buttons.

  • > For local file access:
Future<File?> pickFile() async {
final result = await FilePicker.platform.pickFiles(
type: FileType.custom,
allowedExtensions: ['pdf'],
);
if (result == null) return null;
return File(result.paths.first ?? '');
}
  • > For network file:
Future<File> loadPdfFromNetwork(String url) async {
final response = await http.get(Uri.parse(url));
final bytes = response.bodyBytes;
return _storeFile(url, bytes);
}

Future<File> _storeFile(String url, List<int> bytes) async {
final filename = basename(url);
final dir = await getApplicationDocumentsDirectory();
final file = File('${dir.path}/$filename');
await file.writeAsBytes(bytes, flush: true);
if (kDebugMode) {
print('$file');
}
return file;
}

And lastly, we will create a function that will redirect us to the pdf_viewer_page.dartfor both local and network-loaded PDF files.

void openPdf(BuildContext context, File file, String url) =>
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) => PdfViewerPage(
file: file,
url: url,
),
),
);

When we run the application, we ought to get the screen’s output like the underneath screen capture.

Output

When a user opens any PDF the output screen will look like this, with the app bar containing the name of the PDF document.

Output

Conclusion:

In the article, I have shed some light on the fundamental construction of PDF viewer and downloader in a flutter program, you can modify this code as per your need. This was a little prologue to PDF View and Download from my side, and its functioning using Flutter.

I trust this blog will give you adequate data on trying up the PDF Document View and Download in your flutter projects. We showed you what PDF Viewer and Downloader are? its implementations, and how to utilize the PDF Document View and Download from both local and network. Made a demo app to work in your flutter applications. So if it’s not too much trouble, try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

GitHub Link:

find the source code of the Flutter PDF Document VIew and Download Demo:

GitHub – flutter-devs/pdf_viewer_and_downloader_example
A new Flutter project. This project is a starting point for a Flutter application. A few resources to get you started…github.com

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Rest API Using GetX

Shaiq Khan
-
0
Rest API Using GetX

Hello Everyone!! In this article, we learn about getx in Flutter. We cover many topics in this article. GetX is fast, and lightweight, and using this, we can easily manage states, and routing and can efficiently perform dependency injection.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents:

What is GetX?

Three Pillars of GetX

Implementation

Conclusion

GitHub Link

What is GetX?

There is many state management in flutter like Provider, GetX, Bloc, Riverpod, Mobx, etc. But GetX is not only a state management library, but instead, it is a micro-framework amalgamated with route management and dependency injection. It points to delivering a top-of-the-line development experience in an extra insubstantial but strong solution for Flutter.

Three Pillars of GetX:

there are three pillars of getx by which we can create our flutter application trouble-free. And it’s very easy to use in any flutter application.

1. State management

It has two different state management, Get-builder, and GetX/Obx. Get-builder is simple to state management and Obx is a reactive state manager.

> State Management:- State Management is the planned approach to manage all the interplay that a user performs on a flutter application and then return those changes to UI, update databases, server requests, etc.

> Reactive State Manager:- Reactive programming is as easy as state management. Reactive programming can estrange many people because it is said to be tangled. In this, we don’t need to create StreamControllers and StreamBuilder for each variable. We don’t use code generators.

This is your count variable:

var city= 'Agra';

To make it observable, you just need to add “.obs” to the end of it:

var city = 'Agra'.obs;

And in the UI, when you want to show that value and update the screen whenever the values changes, simply do this:

Obx(() => Text("${controller.city}"));

2. Route management

GetX Route Management concept is used to navigate from one screen to another and pass data between two screens, to close the snack bar, dialog, and bottom sheets in flutter programming. This makes the navigation much simpler than the welsh way of dealing with itinitialRoute: RouteConstant.homeScreen,

3. Dependency management

It is used to handle Multiple Repositories in Flutter. As a codebase begins to fatten, in an environment where you are developing multifold applications, it is usual to have some dependencies that are shared across projects.DataController dataController = Get.put(DataController());

Implementation:

First, We have to create a Flutter Application with the name rest_api_getx. and add the dependencies in pubspec.ymal file.

dependencies:
flutter:
sdk: flutter
cupertino_icons: ^1.0.2
get: ^4.6.1
http: ^0.13.4

In the main. dart file we add Get before your MaterialApp, turning it into GetMaterialApp.

GetMaterialApp(
theme: ThemeData.dark(),
debugShowCheckedModeBanner: false,
getPages: getPages,
title: 'Rest API Using GetX Demo',
initialRoute: RouteConstant.homeScreen,
);

We add dark theme in theme and set debugShowCheckedModeBanner as false, pass the initalRoute which is homescreen() for using route_constant we have to add getPages.

And create binding file, home_binding.dart.

class HomeScreenBinding extends Bindings {
@override
void dependencies() {
Get.lazyPut<DataController>(
() => DataController(),
);
}
}

Also create a controller file, home controller. Create two-variable first for user_model and isDataLoading for loader

User_Model? user_model;
var isDataLoading = false.obs;

Fetch API in the controller.

getApi() async {
try{
isDataLoading(true);
http.Response response = await http.get(
Uri.tryParse('http://dummyapi.io/data/v1/user')!,
headers: {'app-id': '6218809df11d1d412af5bac4'}
);
if(response.statusCode == 200){
///data successfully

var result = jsonDecode(response.body);

user_model = User_Model.fromJson(result);
}else{
///error
}
}catch(e){
log('Error while getting data is $e');
print('Error while getting data is $e');
}finally{
isDataLoading(false);
}
}

Create getApi() in which Fetch API in the controller. we pass try, catch, and finally. In try first, we add isDataLoading loader as true. and create a response and add an API link by using HTTP. get. If the status code is true then it shows the data. otherwise, print the error. And In finally, we pass the isDataLoading loader as false.

Create a User_model file in which we add the model of API. we can easily create the data model by using JsonToDart. In this, we add our JSON file and convert it into a dart file.

class User_Model {
List<Data>? data;
int? total;
int? page;
int? limit;

User_Model({this.data, this.total, this.page, this.limit});

User_Model.fromJson(Map<String, dynamic> json) {
if (json['data'] != null) {
data = <Data>[];
json['data'].forEach((v) {
data!.add(new Data.fromJson(v));
});
}
total = json['total'];
page = json['page'];
limit = json['limit'];
}

Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
if (this.data != null) {
data['data'] = this.data!.map((v) => v.toJson()).toList();
}
data['total'] = this.total;
data['page'] = this.page;
data['limit'] = this.limit;
return data;
}
}

class Data {
String? id;
String? title;
String? firstName;
String? lastName;
String? picture;

Data({this.id, this.title, this.firstName, this.lastName, this.picture});

Data.fromJson(Map<String, dynamic> json) {
id = json['id'];
title = json['title'];
firstName = json['firstName'];
lastName = json['lastName'];
picture = json['picture'];
}

Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data['id'] = this.id;
data['title'] = this.title;
data['firstName'] = this.firstName;
data['lastName'] = this.lastName;
data['picture'] = this.picture;
return data;
}
}

We already discussed route_management so we create a file with the name route_constant in which we add a string of routes.

class RouteConstant{
static const String homeScreen = '/home_screen';
}

and also create a get_pages_constant in which we use GetPage and add the name of route, page, and binding.

List<GetPage> getPages = [
GetPage(
name: RouteConstant.homeScreen,
page: () => HomeScreen(),
middlewares: [
// Add here
// AuthGuard(),
],
binding: HomeScreenBinding()),
];

For the UI part create a dart file, homeScreen.dart. and get the home controller in that file by which we can access the controller’s variables and methods.

DataController dataController = Get.put(DataController());

In buildcontext we return Scaffold and in the property of Scaffold, we use appbar.

appBar: AppBar(
title: const Text(
'Rest API Using GetX',
),
centerTitle: true,
),

In the body, we wrap all the code with Obx for state management and add a condition that if isDataLoader is true it shows data otherwise it shows CircularProgressIndicator().

Obx(() => dataController.isDataLoading.value
? const Center(child: CircularProgressIndicator())
: _builScreen()),

In _builScreen we return ListView.builder(), in item count pass user model length. And in the builder, we pass context and index and return Column(). In the children of the column, we add SizedBox and container. In Container, we pass the row and add image and column. add the column as a child of the container. In the children, we pass three texts, title, first name, and last name.

Widget _builScreen(){
return ListView.builder(
itemCount: dataController.user_model!.data!.length,
itemBuilder: (context, index) {
return Column(
children: [
const SizedBox(
height: 10,
),
Container(
margin: const EdgeInsets.only(left: 20, right: 20),
padding: const EdgeInsets.only(left: 20),
height: 80,
width: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(20)),
child: Row(
children: [
CircleAvatar(
radius: 35,
backgroundImage: NetworkImage(dataController
.user_model!.data![index].picture!),
),
const SizedBox(
width: 30,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
dataController.user_model!.data! [index].title!
.toUpperCase(),
style: const TextStyle(
color: Colors.black, fontSize: 18),
),
Text(
dataController
.user_model!.data![index].firstName!,
style: const TextStyle(
color: Colors.black, fontSize: 18)),
Text(
dataController
.user_model!.data![index].lastName!,
style: const TextStyle(
color: Colors.black, fontSize: 18)),
],
),
],
)),
const SizedBox(
height: 10,
)
],
);
});
}

When we run the application, we ought to get the screen’s output like the underneath screen video.

Final Output Video

Conclusion:

In this article, we have been through How to call Rest API Using GetX along with how to implement it in a Flutter. By using we can perform many operations and create a Flutter application.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

GitHub Link:

Find the source code of the Rest API Using GetX:

GitHub – flutter-devs/rest_api_getx
You can’t perform that action at this time. You signed in with another tab or window. You signed out in another tab or…github.com

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Functional Testing On Flutter

Shaiq Khan
-
0
Functional Testing On Flutter

Hi everyone! today we started learning about functional testing on Flutter, Functional testing is a type of testing that seeks to establish whether each application feature works as per the software requirements. Each function is compared to the corresponding requirement to ascertain whether its output is consistent with the end user’s expectations.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

What is Functional Testing?

What are the Types of Functional Testing?

What are the Benefits of Functional Testing in Flutter?

How Functional Testing Works in Flutter?

Why does Functional Testing Matter in Flutter?

Process of Functional Testing in a Flutter

Entry/Exit Criteria

Steps Involved

Approach

Functional Testing Use Case Examples

Conclusion

What is Functional Testing?:

What is Functional Testing

Software testing executes a program or application to check whether the actual results match the expected results and to assure that the software system is Bug- free. It can be either done manually or using automated tools. Software testing is classified into two categories –

  1. Functional Testing
  2. Non — Functional Testing
  • > Functional Testing reviews each part of a piece of programming to ensure that it works accurately. Functional testing confirms that a system ought to proceed true to form when its elements are practiced by another system or straight by a client.
  • > Non-Functional Testing is the testing of a software application or framework for its non-functional requirements: how a system works, as opposed to explicit ways of behaving of that system.

What are the Types of Functional Testing?:

The common types of Functional testing are defined below:

> Unit Testing:

Unit testing ought to begin at the earliest reference point to guarantee that each block of code/unit plays out its planned control of contributions to wanted yields for the following module. Tests a singular unit/part of programming to approve that every unit of the product proceeds as planned.

> Integration Testing:

Takes numerous singular units/parts of the product and tests them collectively to guarantee that the unit modules interface true to form and convey information and orders all through the system per the details constructed.

> Smoke Testing:

Smoke testing is a subset of experiments that tests the major/basic functionalities of programming in a non-far reaching way to guarantee the product does what is needed to continue toward extra tests. Execute before any nitty-gritty utilitarian test or relapse tests are performed on the product construct.

> Sanity Testing:

In the wake of getting a product construct check that minor changes and fixes applied to the code body don’t have unforeseen secondary effects in, evidently, separate pieces of the framework and affirm that the bugs have been fixed. Assuming sanity tests fail, the form will be dismissed to save the time and costs associated with more thorough testing.

> Regression Testing:

Confirm that the later component increases and bug fixes(due to which code changes) do not unfavorably influence existing highlights. Regression Testing is only the full or halfway choice of currently executed experiments that are re-executed to guarantee existing functionalities turn out great.

> User Acceptance Testing:

This is the last step before software goes live, client acknowledgment tests ensure it can deal with required assignments in Real-World situations, as per determinations. End clients normally play out these tests during the Beta testing time frame.

What are the Benefits of Functional Testing in Flutter?:

Functional Testing has the following Benefits –

  • It ensures that the customer or end-user is satisfied.
  • It produces a defect-free product/software.
  • It ensures that all the requirements should be met.
  • It ensures the proper working of all the functionalities of an application/software/product.
  • It ensures that the software/product works as expected.
  • It ensures security and safety.
  • It improves the quality of the product.
  • The risks and losses associated with the product/software are reduced.

How Functional Testing Works in Flutter?:

When conducting functional tests, you should typically need to follow a process that looks something like this :

How Functional Testing Works in Flutter
  • Use test data to identify the inputs.
  • Determine the expected outcome based on those inputs.
  • Run test cases with the proper inputs.
  • Compare actual results with expected results.

Following this method, if the actual results and the expected results will match, then conclude that the software functions correctly and that the test has passed. If they do not match, then there is an issue with the software.

Two Perspectives:-

  • > Requirements– Centered testing, focusing on necessities given risk criteria to assess the most basic elements and capacities first.
  • > Business — Process-centered testing, which depends on the information on end-client business necessities to assess application execution regarding use cases.

Why does Functional Testing Matter in Flutter?:

Why does Functional Testing Matter in Flutter

It can be easy to excuse programming testing as undesirable speculation of time and money. However, for such countless associations, one little bug spiraled out of control. Humiliating programming errors in the item could make a brand become a web sensation however in an incorrect manner. No necessity for the meaning appropriate programming testing methods in the most difficult way possible.

Process of Functional Testing in a Flutter:

This testing process has three main steps:

Functional testing creates a result of the given data sources and decides whether the system is working accurately according to the details.

Entry/Exit Criteria:

> Entry Criteria:

  • The Requirement Specification document is defined and approved.
  • Test Cases have been prepared.
  • Test data has been created.
  • The environment for testing is ready, and all the tools that are required are available and ready.
  • Complete or partial Application is developed and unit tested and is ready for testing.

> Exit Criteria:

  • Execution of all the functional test cases has been completed.
  • Reported bugs have been acknowledged.

Steps Involved:

The various steps involved in this testing are mentioned below:

  • The very first step involved is to determine the functionality of the product that needs to be tested and it includes testing the main functionalities, error conditions, messages, usability testing i.e. whether the product is user-friendly or not, etc.
  • The next step is to create the input data for the functionality to be tested as per the requirement specification.
  • Later, from the requirement specification, the output is determined for the functionality under test.
  • Prepared test cases are executed.
  • Actual output i.e. the output after executing the test case and expected output (determined from requirement specification) are compared to find whether the functionality is working as expected or not.

Approach:

Different kinds of scenarios can be thought of and authored in the form of “test cases”. As QA Analysts, we all know how the skeleton of a test case looks.

It mostly has four parts to it:

  • Test summary
  • Pre-requisites
  • Test Steps and
  • Expected results.

Attempting to create each sort of test isn’t just incomprehensible yet also time-consuming and costly.

Typically, we would need to uncover the greatest bugs with next to no ways out with existing tests. Therefore, the QA needs to utilize advancement procedures and plan how they would move toward the testing.

Functional Testing Use Case Examples:

Take an online HRMS portal where the employee logs in with his user account and password. On the login page, there are two text fields for the username & password, and two buttons: Log in and Cancel. Successful login takes the user to the HRMS home page and cancel will cancel the login.

Specifications are as shown below:

#1 ) The user-id field takes a minimum of 6 characters, a maximum of 10 characters, numbers(0–9), letters(a-z, A-z), special characters (only underscore, period, hyphen allowed) and it cannot be left blank. User id must begin with a character or a number and not special characters.

#2) Password field takes a minimum of 6 characters, a maximum of 8 characters, numbers (0–9), letters (a-z, A-Z), and special characters (all), and cannot be blank.

The basic approach to testing this scenario can be classified into two categories:

  • > Positive testing
  • >Negative testing

> Positive tests are blissful tests that are done to guarantee that the item meets the fundamental prerequisites that are indispensable to client use.

> Negative scenarios guarantee that the item acts appropriately in any event when it is subjected to unexpected data.

Conclusion:

This tutorial has exhaustively examined all you want to be aware of functional testing, right from the basics.

Functional testing is one of the significant testing processes as it confirms the usefulness of an item that is the most required and without a doubt the significant part of any item or application.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Regression Testing On Flutter

Shaiq Khan
-
0
Regression Testing On Flutter

Hi everyone! today we started learning about regression testing on Flutter, Regression testing is a software testing practice that ensures an application still functions as expected after any code changes, updates, or improvements.

Regression testing is responsible for the overall stability and functionality of the existing features. Regression testing is re-running functional and non-functional tests to ensure that previously developed and tested software still performs after a change. If not, that would be called a regression.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

What is Regression Testing?

Need for Regression Testing in Flutter

How to do Regression Testing in Flutter

Retest All

Regression Test Selection

Prioritization of Test Cases

Selecting Test Cases for Regression Testing

Regression Testing Tools

Regression Testing and Configuration Management

Difference between Re-Testing and Regression Testing

Challenges in Regression Testing

Conclusion

What is Regression Testing?:

Regression Testing is defined as a type of software testing to confirm that a recent program or code change has not adversely affected existing features. Regression Testing is nothing but a full or partial selection of already executed test cases that are re-executed to ensure existing functionalities work fine.

This testing is done to make sure that new code changes do not have side effects on the existing functionalities. It ensures that the old code still works once the latest code changes are done.

Need for Regression Testing in Flutter:

The Need for Regression Testing mainly arises in Flutter whenever there is a requirement to change the code and we need to test whether the modified code affects the other part of the software application or not. Moreover, regression testing is needed, when a new feature is added to the software application and for defect fixing as well as performance issue fixing.

How to do Regression Testing in Flutter:

To do the Regression Testing process, we must first debug the Flutter code to identify the bugs. Once the bugs are identified, required changes are made to fix them, then the regression testing is done by selecting relevant test cases from the test suite that covers both modified and affected parts of the code.

Software maintenance is an activity that includes enhancements, error corrections, optimization, and deletion of existing features. These modifications may cause the system to work incorrectly. Therefore, Regression Testing becomes necessary. Regression Testing can be carried out using the following techniques:

Retest All:

  • This is one of the methods for Regression Testing in which all the tests in the existing test bucket or suite should be re-executed. This is very expensive as it requires a lot of time and resources.

Regression Test Selection:

Regression Test Selection is a technique in which some selected test cases from the test suite are executed to test whether the modified code affects the software application or not. Test cases are categorized into two parts, reusable test cases which can be used in further regression cycles and obsolete test cases which can not be used in succeeding cycles.

Prioritization of Test Cases:

  • Prioritize the test cases depending on business impact, and critical & frequently used functionalities. Selection of test cases based on priority will greatly reduce the regression test suite.

Selecting Test Cases for Regression Testing:

It was found from industry data that a good number of the defects reported by customers were due to last-minute bug fixes creating side effects hence selecting the Test Case for regression testing is an art and not that easy.

Effective Regression Tests can be done by selecting the following test cases –

  • Test cases that have frequent defects
  • Functionalities that are more visible to the users
  • Test cases that verify core features of the product
  • Test cases of Functionalities which has undergone more recent changes
  • All Integration Test Cases
  • All Complex Test Cases
  • Boundary value test cases
  • A sample of Successful test cases
  • A sample of Failure test cases

Regression Testing Tools:

If your software undergoes frequent changes, regression testing costs will escalate. In such cases, Manual execution of test cases increases test execution time as well as costs. Automation of regression test cases is the smart choice in such cases. The extent of automation depends on the number of test cases that remain re-usable for successive regression cycles.

1) testRigor:

testRigor is a Generative AI-driven, codeless test automation tool helping companies empower manual testers to build test automation via executable specifications in plain English, achieving speeds up to 15x faster than Selenium. Additionally, it requires 200x less time maintaining tests compared to Selenium. As a no-code automation testing solution, testRigor excels in cross-system end-to-end testing, seamlessly integrating tests across various platforms including web, mobile, Salesforce, ServiceNow, Microsoft Dynamics, SAP, and other third-party systems in a single, straightforward test.

Features:

  • The free forever public version
  • Test cases are in English
  • Unlimited users & Unlimited tests
  • The easiest way to learn automation
  • Recorder for web steps
  • Integrations with CI/CD and Test case management
  • Email & SMS testing
  • Web + Mobile + API steps in one test

2) Avo Assure:

Avo Assure is a technology agnostic, no-code test automation solution that helps you test end-to-end business processes with a few clicks of the buttons. This makes regression testing more straightforward and faster.

Features:

  • Autogenerate test cases with a 100% no-code approach
  • Test across the web, desktop, mobile, ERP applications, Mainframes, associated emulators, and more with a single solution.
  • Enable accessibility testing
  • Execute test cases in a single VM independently or in parallel with Smart Scheduling
  • Integrate with Jira, Jenkins, ALM, QTest, Salesforce, Sauce Labs, TFS, etc.
  • Define test plans and design test cases through the Mindmaps feature

3) Telerik Test Studio:

Telerik Test Studio is an automated testing platform for web, desktop, and responsive applications, supporting functional UI, load, and RESTful API testing. Test Studio helps teams eliminate regressions and make sure their applications still work the way they did before any changes were introduced. It comes with standalone IDE and Visual Studio integration

Features:

  • Visual test recorder for codeless end-to-end tests
  • Cross-browser support
  • Headed or three times faster headless test execution
  • Element location based on element ID and image
  • CI/CD Integration and Docker support for Continuous Testing
  • Data-driven testing
  • Remote test scheduling and execution
  • Test results and reports

4) Subject7:

Subject7 is a cloud-based, “true codeless” test automation solution that unifies all testing in a single platform and empowers anyone to become an automation expert. Our easy-to-use software enables fast, easy, and sophisticated authoring of regression tests without writing a line of code, and high scale execution that runs thousands of nightly tests.

Features:

  • Integrates easily with DevOps/Agile tooling using native plugins, in-app integrations, and open APIs.
  • High-scale parallel execution in the cloud or on-prem with enterprise-grade security.
  • Flexible reporting of defects, with video capture of results.
  • Simple, non-metered pricing, delivering financial predictability.
  • SOC2 Type2 compliant

5) Eggplant:

Eggplant’s AI-driven test automation streamlines regression testing through prioritization of test cases and minimization of test maintenance.

Features:

  • AI-driven test execution enables Eggplant to test the most important areas of each release.
  • Reuse testing models and scripts to test multiple versions with one set of assets.
  • Reduce the burden of test maintenance through self-healing functional tests.
  • Understand and focus on problematic areas of your application that put your release at risk.
  • Discover bugs that you would otherwise miss through automated exploratory testing.
  • Reduce the time required to test key functionality of applications after updates.
  • Selenium: This is an open-source tool used for automating web applications. Selenium can be used for browser-based regression testing.
  • Quick Test Professional (QTP): HP Quick Test Professional is automated software designed to automate functional and regression test cases. It uses the VBScript language for automation. It is a Data-driven, Keyword-based tool.
  • Rational Functional Tester (RFT): IBM’s rational functional tester is a Java tool used to automate the test cases of software applications. This is primarily used for automating regression test cases and it also integrates with Rational Test Manager.

Regression Testing and Configuration Management:

Configuration Management during Regression Testing becomes imperative in Agile Environments where a code is being continuously modified.

To ensure effective regression tests, observe the following :

  • Code being regression testing should be under a configuration management tool
  • No changes must be allowed to code, during the regression test phase. Regression test code must be kept immune to developer changes.
  • The database used for regression testing must be isolated. No database changes must be allowed

Difference between Re-Testing and Regression Testing:

Retesting means testing the functionality or bug again to ensure the code is fixed. If it is not fixed, Defect needs to be re-opened. If fixed, Defect is closed.

Regression testing means testing your software application when it undergoes a code change to ensure that the new code has not affected other parts of the software.

Challenges in Regression Testing:

Following are the major testing problems for doing regression testing:

  • With successive regression runs, test suites become fairly large. Due to time and budget constraints, the entire regression test suite cannot be executed
  • Minimizing the test suite while achieving maximum Test coverage remains a challenge
  • Determination of the frequency of Regression Tests, i.e., after every modification or every build update or after a bunch of bug fixes, is a challenge.

Conclusion:

An effective regression strategy, save organizations both time and money. As per one of the case studies in the banking domain, regression saves up to 60% time in bug fixes(which would have been caught by regression tests) and 40% in the money.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

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From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Why Software Testing is Important in Flutter?

Shaiq Khan
-
0
Why Software Testing is Important in Flutter?

Hi everyone! today we explore Why Software Testing is Important in Flutter. The testing is important since it discovers defects/bugs before the delivery to the client, which guarantees the quality of the software.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table Of Contents::

Why is software testing so important?

Importance of Software Testing

Why Do We Need Regular Software Updates?

Here Are 5 Reasons Why Software Testing Is So Important

IT TEAMS AND ROLES

Role of a Tester

Software Test Manager

Software Automation Tester

Conclusion

Why is software testing so important?:

Updating and replacing software is essential to business these days. In a world where technology is more accessible than ever, it is a part of our life, with regular updates on mobile devices, system downtime for website maintenance and more — the list goes on.

Importance of Software Testing:

To put it simply, the importance of software testing can be traced from the user’s response. It assures the quality of the product and satisfies the customers as well as users. Also, it promises better business optimization (less maintenance cost), reliability, and superior user experience. Substantially, the iterative efforts spent to mold a powerful yet error-free software are far and wide.

Despite the designers and developers, software testing plays a decisive role in the process. As the development process follows the software development life cycle, the testing process lines up right behind the queue to compile the units to verify and validate.

Altogether, it is a continuous process of verification and validation to deliver an excellent product. Each phase of the test determines the performance and efficiency of the system/application. As a result, it helps to ensure that the software application aligns with all the technical and business parameters.

The importance of software testing is evident in the final quality assurance report. By successfully passing through the diversified levels of testing, the final products could perform beyond the expected outcomes. At each level, the testers can not only figure out the errors but also prevent such snags in the future. Besides, exploring each mistake makes for the birth of an improvised version of the software.

Why Do We Need Regular Software Updates?:

The reason can vary but generally, it is often because of bugs that need to be fixed or new features being introduced to improve quality; this is the lifecycle of any software. During the development process, the effort needed for continuous testing is often considered an unnecessary activity and therefore an extra cost to the business. Seeing as the results of software testing are not as tangible as developing a piece of software, that is why it is difficult to justify.

Sometimes you hear people say, “I want a product that simply works”. Understandable perhaps, but how do we know that the system works the way it is supposed to? How can we measure that all the requirements are delivered and that the quality meets expectations?
This is where software testing comes into play. Software testing provides a way of measuring the quality of the software and determining whether it fulfills the requirements and how well it works before it is installed in a live operation.

Here Are 5 Reasons Why Software Testing Is So Important:

> Increase the quality:

Testing and quality go hand in hand. Quality can be measured by the number of defects identified during testing and those will then be fixed within a software development lifecycle. This will continue throughout the development phase, and testing continuously enables the quality of the software to be improved.

Testing enables you to see what the software does and how well it does it so that the business can measure the quality of the software before it goes live.

> We all make mistakes:

There is no such thing as a defect-free system, and we all make mistakes, especially developing a complex system. Developing software without testing is just a guessing game. When code is written and a set or piece of functionality is developed, it is important to test and verify that the system works as expected according to requirements.

> Reduce risks:

Defects must be sought out and either fixed or removed from the final product to ensure that the system can run as expected during live operation. When a critical defect is discovered in a live environment the impact and severity are both high because it affects the end-user, so continuous testing is very important to mitigate the risks and ensure that the software is ready for live operation.

> Cost-Effective:

Nobody wants a project to overrun, but it often feels as though the budget will run out sooner than anticipated, or that the expenses are higher towards the end of the project.

Why is project go-live being pushed? Why is a lot of money being spent on fixing system issues?

Project delay does not happen only because of poor software quality, although it is one of the more common reasons why a project go-live date is pushed back when working with system development or on implementation. It is often more time-consuming and difficult to fix a defect, hence more expensive, when a defect is discovered at a later stage and a large amount of the system has already been built.

Testing early and continuously not only enables the system to be better, but also allows the project manager to have better control over the budget (time and money). Discovering defects and fixing them at an earlier stage can reduce unexpected costs at the end of the project, or in a worst-case scenario after the system is in live operation.

> Gain customer confidence:

Last but by no means least, all the above leads to a happy customer! System stability is what we all want as customers. Testing throughout the development lifecycle provides visibility as to how well and stable the software has been developed, therefore increasing confidence in the customer once released into a live environment.

IT TEAMS AND ROLES:

There are different roles in the software testing team. The software testing is performed at every level of software development with specific objectives and IT professionals. This makes sure early defect detection and fixing. It is important to make sure that the software testing team should have a proper structure. The roles and responsibilities should be clearly defined and properly distributed among the team members.

Every member of the team will have a proper document that provides the necessary information on how tasks would be organized, what approach will be followed, how things should be scheduled, how many hours have been allocated to each member, and all details related to applicable standards and quality process.

Role of a Tester:

A tester is responsible for designing the testing scenarios, conducting the tests, analyzing the outcome or results after observations submit the report to the development team. A software tester should know about software testing. Testers should have a good understanding of the system which means technical and functional product aspects.

Software Test Manager:

The test manager represents the leader of the testing team. The test Manager will be responsible for interdepartmental meetings. This role has the responsibility of making decisions regarding the test environment required and how the information flow will be managed and how the testing procedure will go hand in hand with development.

Software Automation Tester:

The software automation tester role can be handled by an automated test engineer who should have a very good understanding of GUI designs, and load or stress testing. He should know the requirement and design test procedures and test cases for automated software testing. He should design reusable automated test scripts. He should make sure that automated testing-related activities are done as per the company standards.

Conclusion:

Testing is so much more than just pressing buttons or ‘trying a system out’, and these are just a few of the reasons why it is so important to include testing as part of the software development lifecycle.

The importance of software testing and quality assurance is of high value in a software development cycle. Both of the processes refine the whole process and ensure the superior quality of the product. Also, it reduces maintenance costs and provides better usability and enhanced functionality. When software testing signs and pushes the individual components, quality assurance attests to the product- Fit for the purpose.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

Decorated Box Transition In Flutter

Shaiq Khan
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0
Decorated Box Transition In Flutter

Whenever you will code for building anything in Flutter, it will be inside a widget. The focal design is to construct the application out of widgets. It depicts how your application view should look with its ongoing design and state. Right when you make any changes in the code, the widget adjusts its portrayal by working out the separation between the past and current widget to pick the unimportant changes for conveying in the UI of the application.

In Flutter, to assemble any application, we start with widgets. The building block of flutter applications. Widgets depict what their view ought to resemble given their ongoing setup and state. It consists of a text widget, line widget, segment widget, container widget, and some more.

In this article, we will explore the Decorated Box Transition In Flutter. We will implement the Decorated box transition demo program and learn how to use the same in your flutter applications.

DecoratedBoxTransition class – widgets library – Dart API
API docs for the DecoratedBoxTransition class from the widgets library, for the Dart programming language.api.flutter.dev

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Table Of Contents::

Decorated Box Transition

Constructor

Properties

Code Implement

Code File

Conclusion

GitHub Link

Decorated Box Transition:

DecoratedBoxTransition Widget is an animated version of a DecoratedBox that animates the different properties of its Decoration.

In Material Design, it paints an embellishment onto another box like a Container Widget that is an offspring of DecoratedBox. Very much like a DecoratedBox Widget Flutter has another widget called DecoratedBoxTransition Widget that is utilized for animating various properties of its decoration.

Demo Module :

This demo shows how the transition works in an app. It shows how the box transitions from one color to another by clicking on the button or by having it automated.

Constructor:

To utilize Decorated Box Transition, you need to call the constructor underneath:

const DecoratedBoxTransition(
{Key? key,
required Animation decoration,
DecorationPosition position = DecorationPosition.background,
required Widget child}
)

In Above Constructor all fields marked with @required must not be empty.

Properties:

There are some properties of Decorated Box Transition:

  • Animation<Decoration> Decoration: This attribute is used to animate the decoration to paint. It can be created using a DecorationTween interpolating typically between two BoxDecoration.
  • DecorationPosition Position: This attribute is used to define whether to paint the box decoration behind or in front of the child.
  • Widget Child: The widget below this widget in the tree. It will have only a one-child widget. To allocate multiple children users are requested to use Row Widget or Column Widget.

How to implement code in dart file:

You need to implement it in your code respectively:

Create a new dart file called main.dart inside the lib folder.

First, we will create a screen that shows a box that is wrapped by the Decorated Box Transition widget and a button to toggle the transition on or off, and another button to fully automate the decorated box transition.

final DecorationTween decorationTween = DecorationTween(
begin: BoxDecoration(
color: Colors.white,
border: Border.all(
color: Colors.black45,
style: BorderStyle.solid,
width: 3.0,
),
shape: BoxShape.circle,
boxShadow: const [
BoxShadow(
color: Colors.black87,
blurRadius: 10.0,
spreadRadius: 4.0,
)
],
),
end: BoxDecoration(
color: Colors.black,
border: Border.all(
color: Colors.black87,
style: BorderStyle.solid,
width: 1.0,
),
shape: BoxShape.circle,
// No shadow.
),
);

When we run the application, we ought to get the screen’s output like the underneath screen capture.

Output

The automated screen needs to be separately coded using a similar box wrapped by the Decorated BoxTransition widget.

When we run the application, we ought to get the screen’s output like the underneath screen video.

Output

Code File:

import 'package:flutter/material.dart';
import 'package:flutter_decoratedbox_transition_example/splash_screen.dart';
import 'automatic.dart';

void main() {
runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return const MaterialApp(
debugShowCheckedModeBanner: false,
home: Splash(),
);
}
}

class DecoratedBoxTransitionWidget extends StatefulWidget {
const DecoratedBoxTransitionWidget({Key? key}) : super(key: key);

@override
_DecoratedBoxTransitionWidgetState createState() =>
_DecoratedBoxTransitionWidgetState();
}

class _DecoratedBoxTransitionWidgetState extends State
with TickerProviderStateMixin {
late AnimationController _animationController;
bool _initial = true;
final DecorationTween decorationTween = DecorationTween(
begin: BoxDecoration(
color: Colors.white,
border: Border.all(
color: Colors.black45,
style: BorderStyle.solid,
width: 3.0,
),
shape: BoxShape.circle,
boxShadow: const [
BoxShadow(
color: Colors.black87,
blurRadius: 10.0,
spreadRadius: 4.0,
)
],
),
end: BoxDecoration(
color: Colors.black,
border: Border.all(
color: Colors.black87,
style: BorderStyle.solid,
width: 1.0,
),
shape: BoxShape.circle,
// No shadow.
),
);

@override
initState() {
_animationController = AnimationController(
vsync: this,
duration: const Duration(seconds: 1),
);
super.initState();
}

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text("Decorated Box Transition Example"),
automaticallyImplyLeading: false,
),
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
DecoratedBoxTransition(
position: DecorationPosition.background,
decoration: decorationTween.animate(_animationController),
child: Container(
width: 300,
height: 300,
padding: const EdgeInsets.all(50),
child: Opacity(
opacity: 0.8,
child: Image.asset(
'assets/flutter.png',
),
),
),
),
const SizedBox(
height: 60,
),
ElevatedButton(
onPressed: () {
if (_initial) {
_animationController.forward();
} else {
_animationController.reverse();
}
_initial = !_initial;
},
child: const Text(
"Tap To Change Transition!",
),
),
const SizedBox(height: 40),
ElevatedButton(
onPressed: () {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) => const HomePage(),
),
);
},
child: const Text('Transition to Automatic Decorated Box'),
)
],
),
),
);
}
}}

Conclusion:

In the article, I have explained the essential construction of the Decorated Box Transition widget in a flutter; you can alter this code as per your choice. This was a little introduction to the Decorated Box Transition widget on User Interaction from my side, and it’s working using Flutter.

I hope this blog will provide you with sufficient information on Trying up the Decorated Box Transition widget in your flutter projects. We showed you what the Decorated Box Transition widget is, its constructor, and the properties of the Decorated Box Transition widget. We made a demo program for working Decorated Box Transition widget. So please try it.

❤ ❤ Thanks for reading this article ❤❤

If I got something wrong? Let me know in the comments. I would love to improve.

Clap 👏 If this article helps you.

GitHub Link:

find the source code of the decorated_box_transition:

GitHub – flutter-devs/flutter_decoratedBox_transition
A new Flutter project. This project is a starting point for a Flutter application. A few resources to get you started…github.com

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire a flutter developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! You can connect with us on Facebook, GitHub, Twitter, and LinkedIn for any flutter-related queries.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.

The Rise of Flutter: Powering the Next Generation of Wearables and Embedded Devices

Shaiq Khan
-
0
The Rise of Flutter: Powering the Next Generation of Wearables and Embedded Devices

In recent years, Flutter has transcended its origins as a mobile app development framework to become a versatile solution for building applications across a spectrum of devices, including wearables and embedded systems. This evolution is fueled by Flutter’s unique combination of performance, flexibility, and cross-platform capabilities, making it an attractive choice for developers seeking to innovate in emerging markets like wearables and embedded devices.

If you’re looking for the best Flutter app development company for your mobile application then feel free to contact us at — support@flutterdevs.com.

Table of Contents

Introduction to Wearables and Embedded Devices

Characteristics of Embedded Systems

Graphical User Interfaces (GUIs)

Challenges in Embedded GUI Development

Why Flutter Shines for Wearables and Embedded Devices

Building Across Various Platforms

Innovating Embedded Systems with Flutter

Real-World Examples: Flutter in Action

Challenges and Considerations: Embracing the Nuances

Optimizing Performance for Embedded Systems

Conclusion

Reference

Introduction to Wearables and Embedded Devices

Wearables and embedded devices represent a burgeoning frontier in the technology landscape, with applications ranging from fitness trackers and smartwatches to industrial sensors and IoT devices. These devices often operate in specialized environments with distinct requirements for user interface design, performance optimization, and resource utilization. Flutter’s emergence as a contender in this domain is driven by its ability to address these challenges while offering developers a unified framework for building applications across diverse platforms and form factors.

However, developing applications for these devices has traditionally been challenging due to the need for different tools and programming languages across various platforms. Enter Flutter — Google’s open-source framework for building beautiful, native-looking user interfaces (UIs) — which is poised to revolutionize the development of applications for wearables and embedded devices.

Characteristics of Embedded Systems:

  • Purpose-Built: Embedded systems are purpose-built for specific tasks, such as controlling machinery, processing sensor data, or managing communication protocols.
  • Resource Constraints: Due to their specialized nature, embedded systems typically have limited resources, including processing power, memory, and storage capacity.
  • Real-Time Operation: Many embedded systems require real-time operation, meaning they must respond to inputs and produce outputs within strict time constraints to ensure proper functionality.

Graphical User Interfaces (GUIs):

A graphical user interface (GUI) is a visual interface that allows users to interact with electronic devices or software applications through graphical elements such as windows, icons, buttons, and menus. GUIs have become ubiquitous in modern computing, providing intuitive ways for users to navigate and interact with complex systems.

Key Components of GUIs:

  1. Widgets: GUIs consist of various graphical elements called widgets, including buttons, text fields, sliders, and checkboxes, which users can interact with to perform actions or input data.
  2.  Visual Feedback: GUIs provide visual feedback to users, such as changing the appearance of buttons or displaying error messages, to indicate the system’s response to their actions.
  3.  Event-Driven Interaction: GUIs rely on event-driven programming paradigms, where user actions, such as mouse clicks or keyboard inputs, trigger events that are handled by the underlying software.

The Intersection of Embedded Systems and GUIs:

Embedded systems often utilize graphical user interfaces (GUIs) to facilitate user interaction and provide visual feedback. For example, a smart thermostat may feature a touchscreen interface that allows users to adjust temperature settings and view energy usage data in real time.

Challenges in Embedded GUI Development:

  • Resource Constraints: Developing GUIs for embedded systems presents unique challenges due to resource constraints, including limited processing power, memory, and display capabilities.
  • Performance Optimization: Optimizing GUI performance is crucial in embedded systems to ensure responsiveness and efficiency, especially in real-time applications where timely user feedback is essential.
  • User Experience (UX) Design: Designing intuitive and user-friendly GUIs for embedded systems requires careful consideration of factors such as screen size, input methods, and environmental conditions.

Why Flutter Shines for Wearables and Embedded Devices

Flutter offers several key advantages that make it particularly well-suited for wearables and embedded devices:

  1. Cross-Platform Development: Flutter’s use of the Dart programming language enables developers to compile a single codebase into native code for different platforms. This means that applications can be developed for wearables running Android Wear OS, Tizen (used by Samsung smartwatches), and various embedded systems with minimal platform-specific code.
  2. Lightweight and Efficient: Flutter is renowned for its small footprint and efficient resource utilization. This is crucial for wearables and embedded devices with limited processing power and memory. Flutter’s architecture, which leverages widgets and a layered approach, ensures smooth performance even on resource-constrained hardware.
  3. Hot Reload: Flutter’s hot reload functionality allows developers to see changes in the UI almost instantly after making code modifications. This rapid feedback loop significantly accelerates the development process, particularly for wearables with smaller screens where fine-tuning the UI is essential.
  4. Rich UI and Animations: Despite its lightweight nature, Flutter doesn’t compromise on UI capabilities. It offers a rich set of widgets and animation capabilities, enabling developers to create visually appealing and engaging user experiences on wearables.
  5. Hardware Integration: Flutter seamlessly integrates with various hardware components commonly found in wearables and embedded devices. Developers can access sensors (such as accelerometers, gyroscopes, and heart rate monitors), GPS, Bluetooth, and other functionalities using native platform APIs.

Building Across Various Platforms

Flutter, Google’s UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase, is primarily known for its versatility in mobile app development. However, it is increasingly being explored for embedded app development across various platforms, including Windows, Linux, Android, and iOS. Here’s how Flutter is utilized in the context of embedded app development for each of these platforms:

  1. Windows:
  • Flutter for Windows enables developers to create applications that run on Windows desktop environments. It allows for the development of feature-rich, visually appealing desktop applications with native performance.
  • Flutter’s support for Windows includes both Win32 and UWP (Universal Windows Platform) applications, offering flexibility in targeting different Windows versions and device form factors.
  • Developers can access native platform APIs and integrate with Windows-specific functionalities using plugins and platform channels, extending Flutter’s capabilities for desktop applications.
  • Flutter’s hot reload feature accelerates the development process, allowing for rapid iteration and testing of UI changes.

2. Linux:

  • Flutter for Linux enables developers to build applications for Linux-based operating systems, including traditional desktop environments and embedded Linux platforms.
  • It supports both graphical user interfaces (GUI) and headless applications, making it suitable for a wide range of use cases, from desktop applications to IoT devices and embedded systems.
  • Flutter’s support for Linux is growing, with ongoing efforts to improve performance, stability, and integration with various Linux distributions and hardware platforms.
  • Developers can leverage Flutter’s rich set of widgets, theming capabilities, and plugin ecosystem to create cross-platform applications that maintain a consistent user experience across Linux distributions.

3. Android:

  • While Flutter is well-established for Android app development, it can also be utilized for embedded Android applications running on specialized devices, such as IoT devices, kiosks, and smart appliances.
  • Flutter’s platform-specific plugins and access to native APIs allow developers to integrate with Android hardware features, sensors, and system functionalities, enabling the development of feature-rich embedded applications.
  • Flutter’s performance optimizations and support for low-end hardware make it suitable for embedded Android devices with limited processing power and memory resources.
  • The Flutter framework abstracts away platform differences, allowing developers to create consistent user experiences across various Android device form factors, screen sizes, and orientations.

4. iOS:

  • While Flutter is primarily associated with Android and cross-platform mobile development, it is also capable of targeting iOS devices, including iPhones, iPads, and iPod Touch devices.
  • Flutter’s support for iOS enables developers to write code once and deploy it on iOS devices, leveraging the same UI components, business logic, and third-party integrations used in Android and web applications.
  • Flutter’s compatibility with Apple’s Metal graphics API and iOS design guidelines ensures that applications maintain a native look and feel on iOS devices, delivering a seamless user experience.
  • Developers can use Flutter’s platform channels to access iOS-specific features, such as Touch ID, Apple Pay, and ARKit, enhancing the functionality and capabilities of embedded iOS applications.

Innovating Embedded Systems with Flutter:

Flutter, with its versatile toolkit for crafting native interfaces across diverse platforms, offers a transformative avenue for the development of embedded systems. Here are some compelling examples of embedded systems where Flutter can be seamlessly integrated:

  1. Smartwatches: Flutter empowers the creation of sophisticated user interfaces for smartwatches, enabling functionalities like fitness tracking, notification management, and seamless app integration to enhance user experiences on wearable devices.
  2. Smart Home Devices: From thermostats to security cameras, Flutter enables the development of intuitive interfaces for smart home devices, fostering seamless control and management of home automation systems for enhanced convenience and security.
  3. Industrial Control Systems: In manufacturing environments, Flutter can drive the creation of user interfaces for industrial control systems, facilitating real-time monitoring and efficient management of machinery, processes, and equipment.
  4. Automotive Infotainment Systems: Flutter’s capabilities extend to automotive infotainment systems, where it can power visually captivating interfaces for navigation, media playback, and seamless connectivity with smartphones, enhancing the driving experience for users.
  5. Medical Devices: Flutter enables the design of user-friendly interfaces for medical devices such as patient monitors, diagnostic equipment, and infusion pumps, ensuring accessibility and ease of use for healthcare professionals and patients alike.
  6. Point-of-Sale (POS) Terminals: Retail and hospitality industries benefit from Flutter’s prowess in developing intuitive interfaces for POS terminals, and streamlining transaction processing, inventory management, and customer interactions.
  7. Embedded Displays and Kiosks: Flutter facilitates the creation of interactive and engaging user interfaces for embedded displays and kiosks in public spaces, offering informative content, entertainment, and immersive experiences to users.
  8. IoT (Internet of Things) Devices: Across various IoT applications, Flutter serves as a robust platform for developing interfaces for smart appliances, environmental sensors, wearable health monitors, and more, enabling seamless communication and interaction with interconnected devices.

These diverse examples underscore the adaptability and versatility of Flutter in addressing the unique interface requirements of embedded systems across different industries and use cases.

Real-World Examples: Flutter in Action

Several companies have already embraced Flutter for building innovative applications for wearables and embedded devices:

  • Mobvoi TicWatch: The TicWatch series of smartwatches from Mobvoi utilizes Flutter for its user interface, providing users with a smooth and responsive experience.
  • BMW iDrive: BMW’s next-generation in-car infotainment system reportedly incorporates Flutter to deliver a visually captivating and interactive experience for drivers.
  • STMicroelectronics: This leading semiconductor manufacturer is exploring Flutter for developing applications targeting the microcontrollers used in various embedded devices.

As Flutter continues to mature and the wearable/embedded device market expands, we can expect even broader adoption of this versatile framework.

Challenges and Considerations: Embracing the Nuances

While Flutter offers significant advantages, there are some challenges and considerations to keep in mind when developing applications for wearables and embedded devices:

  • Limited Third-Party Plugins: Compared to established frameworks like Android or iOS, Flutter has a smaller ecosystem of third-party plugins. However, the community is actively developing new plugins specifically for wearables and embedded devices.
  • Hardware Specificity: Certain hardware functionalities may require platform-specific code for optimal performance. Understanding the capabilities of the target device is essential for a successful development process.
  • Learning Curve: If developers are new to Flutter or Dart, there may be a learning curve involved. However, the framework’s well-structured documentation, supportive community, and growing popularity make learning resources readily available.

Optimizing Performance for Embedded Systems

Certainly! Let’s delve deeper into each optimization strategy for enhancing performance in Flutter applications targeted at embedded systems:

  1. Minimize Resource Usage:

Conduct a thorough audit of your application’s dependencies, assets, and codebase to eliminate any redundant or unused components. This not only reduces the overall size of your application but also minimizes memory usage, which is critical for embedded devices with limited RAM.

Opt for lightweight libraries and frameworks whenever possible to minimize the footprint of your application without sacrificing functionality.

2. Optimize Rendering:

Simplify your UI hierarchy by reducing the number of widgets and layers, as each additional layer adds to the rendering workload. Use Flutter’s widget inspector to identify and eliminate unnecessary widgets or layers that do not contribute to the user experience.

Employ custom painting techniques for complex UI elements that cannot be efficiently represented using standard Flutter widgets. By directly manipulating the canvas, you can achieve better performance and finer control over rendering.

3. Utilize Hardware Acceleration:

Leverage hardware acceleration to offload graphics-intensive tasks from the CPU to the GPU, thereby improving rendering performance and conserving CPU resources.

Take advantage of Flutter’s built-in support for hardware-accelerated rendering, which automatically utilizes underlying graphics APIs such as OpenGL or Vulkan to optimize performance across different platforms.

4. Profile and Debug:

Use Flutter’s profiling tools, such as the Flutter DevTools and Observatory, to analyze your application’s performance metrics, including CPU usage, memory consumption, and frame rendering times.

Profile your application on target embedded devices under realistic usage scenarios to identify performance bottlenecks that may not be evident in development environments. This allows you to prioritize optimization efforts where they are most needed.

5. Optimize Network and I/O Operations:

Minimize network latency and bandwidth usage by optimizing network requests and data transfer protocols. Consider using compression algorithms, caching mechanisms, and batching strategies to reduce the overall data payload and improve network efficiency.

Optimize file I/O operations by minimizing disk reads and writes, especially on embedded devices with limited storage capabilities. Utilize efficient file formats and storage mechanisms optimized for embedded environments to minimize I/O overhead.

6. Implement Battery-Efficient Practices:

Design your application to minimize CPU and GPU utilization, as excessive processing can drain the device’s battery quickly. Optimize animations, background tasks, and UI updates to minimize power consumption and prolong battery life.

Implement power-saving techniques such as dynamic clock scaling, idle-state management, and task scheduling to optimize power usage during both active and idle periods, thereby extending battery life on portable embedded devices.

7. Utilize Platform-Specific Optimizations:

Leverage platform-specific optimizations and APIs provided by Flutter to tailor performance enhancements to each target platform. This includes leveraging platform channels to access native APIs and features that are optimized for specific hardware configurations and operating systems.

Stay informed about platform-specific best practices and optimizations recommended by the Flutter community and platform vendors to ensure that your application takes full advantage of the underlying platform capabilities while maintaining cross-platform compatibility.

8. Security Considerations:

Embedded devices may interact with sensitive data or control critical systems, making security a top priority. Implementing proper security measures is crucial to protect user data and prevent unauthorized access.

By incorporating these advanced optimization strategies into your Flutter application development workflow, you can achieve significant performance improvements and deliver a seamless user experience on a wide range of embedded systems, from IoT devices to wearables and beyond.

Conclusion:

 Flutter’s Continued Rise in Embedded Development

Flutter is revolutionizing embedded development by offering a versatile, cross-platform solution with its lightweight architecture and stunning UI capabilities. As wearables and embedded devices become more prevalent, Flutter’s impact will continue to grow, empowering developers to innovate with unparalleled speed and precision. With Flutter, the future of embedded development is brighter than ever, offering limitless possibilities and reshaping the way we interact with technology

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Reference:

https://flutter.dev/multi-platform/embedded

https://docs.flutter.dev/embedded

From Our Parent Company Aeologic

Aeologic Technologies is a leading AI-driven digital transformation company in India, helping businesses unlock growth with AI automation, IoT solutions, and custom web & mobile app development. We also specialize in AIDC solutions and technical manpower augmentation, offering end-to-end support from strategy and design to deployment and optimization.

Trusted across industries like manufacturing, healthcare, logistics, BFSI, and smart cities, Aeologic combines innovation with deep industry expertise to deliver future-ready solutions.

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