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How Flutter Makes It Easier For Startups To Develop and Launch Apps

Shaiq Khan
-
0
How Flutter Makes It Easier For Startups To Develop and Launch Apps

Running a Start-up and managing an established organization are two very different things. An established company is always looking forward to increasing the business profit every year whereas start-ups still struggle to make one. On the other hand, already established businesses have invested a serious amount of time understanding their business requirements whereas startups might still be figuring out their market position.

This discussion can go on and on for hours but the entire point is that it’s very clear that the requirements of a startup are completely different from a well-established business.

The same applies to the development of Products. For an entrepreneur, to make their startup a revenue-making platform, they must have a Product ready for them to market. And the challenges don’t stop here. Running a startup comes with a lot of limitations, be it time, money, or resources. All these limitations make the startup owners build their product in a way that it has the quickest time-to-market and without compromising on its stability and quality. This further means that they’re working on a tight deadline and limited resources.

Just like any other type of product, a product for a mobility-based business is a highly functional cross-platform mobile application that is immune to scenarios like these. For building an application like that, you need a robust, time-efficient, cross-platform development tool. That is where Flutter fits perfectly in the picture.

Flutter is the most suitable tool for any startup out there. Flutter makes it easier for a startup to develop and launch an app. If you are still unsure of it, let me make it easier for you by dissecting some of its benefits and features.

In this small article, we will focus on how Flutter is the most startup-friendly and why you should choose it for developing your project.

Let us first have a quick understanding of what Flutter exactly is.

What is Flutter?

Flutter is an open-source software development kit that allows you to make mobile apps for multiple platforms at once. We can make mobile apps for Android, iOS, for computers like Linux, Mac, Windows, and even hybrid web apps.

Flutter was launched in 2018 and uses Dart programming language.

Reasons Why Startups Should Prefer Flutter

If you have an eye for details and perfection, you would have already comprehended Flutter’s advantages to your startup. But these are not the only reasons why Flutter is a crowd favorite. Here are some more reasons to chose Flutter over anything else.

Native Like Experience for your Cross-Platform Application

It has been the dream or let’s say a secret wish for a developer to recreate the native app experience in the cross-platform applications. Doesn’t matter how hard we tried, used the most advanced tools, it just simply could not offer the native-like experience ever.

But, that’s where Flutter jumps right in. With its native UI elements, Flutter served the entire developer community with something that they’ve been craving for years now. That’s where Flutter surprisingly made a difference with their innovation. It offered a native experience for two apps for two major platforms by writing the code just once.

: A Robust UI

The User Interface that Flutter offers is the best that is currently available. All thanks to Material Design, Flutter not only offers seamless and smooth UI but also a design that takes minimal to zero learning curve to get used to the app. Flutter has a huge range of customized widgets for both iOS and Android platforms that suits all user requirements.

: Improves Developer Productivity

The productivity of a developer is what a startup requires the most. The developer’s productivity directly affects the time efficiency. Flutter paves the way for optimized productivity among developers. All thanks to it’s Hot Reload Feature.

In simple words, the Hot Reload allows the developer to see the changes to the code instantly in real-time. Instead of recompiling the code to see the reflection of the changes, Flutter offers instantaneous visibility. It ends up saving a lot of development time.

: Lowest Development Cost

For any startup, profit comes later in the journey but managing the investment is always a concern. And when developing the product for the business, any entrepreneur would want to save as much as they can to develop the product without compromising on the quality and diversity of the product.

Flutter reduces the development cost at many steps in the process. Considering the above point, from writing one code for two different applications to reduced time in quality assurance to have tested only one app, there is a lot of time saved. And the time saved is the cost saved on all the resources.

: Faster MVP Development

The Minimum Viable Products helps to build a simpler and functional version of the entire concept. It is basically a bleak version of the intended product, developed to identify the business and economic viability. In the creation of a Startup MVP, the least amount of resources – capital and labor are to be placed.

MVP implementation needs to happen at a rapid pace in the startup world. At the same time, the MVP has to be made presentable. Keeping all these standards in mind, Flutter offers many advantages to create a perfect MVP for the business.

: Non-Stop Improvements

Flutter provides a highly versatile framework for your software needs. It has a bunch of customized widgets and UI that resembles the Native platforms. You can make a simple version of the app and can make changes into the app throughout the process that matched your design needs.

: Super Active Community

There is one thing that will never be hard to find when building an app in Flutter, that is Support. The Flutter community is super-active and is always involved with contributors from inside and outside of Google. From meetups to find the next event near you to Q&A participation on Stack Overflow, Slack, Twitter, and many other online media.

Closing Thoughts

The above reasons should be enough for an app-based tech startup to decide why Flutter is suitable for their needs. What’s more, Flutter is being used by some of the technology giants like Google, Alibaba, Tencent, and many more. So you need not worry about the reliability and security issues.

But if all of this sounds too technical and difficult, you can always prefer a Flutter app development company like us. We are the pioneers of the Flutter app development community. Standing proud at 21 Rank in the world awarded by GitHub.

Flutter — Paving Paths For A Way To The Future

Flutter has become a really powerful framework and can’t be ignored anymore. Even if you are a professional native Android or iOS developer, you should definitely try out Flutter to understand it’s true power. Seeing all this one thing is assured that Flutter has great potential in the coming time that will be further enriched and the difference it can bring in the table by giving a boost to your workflow and business growth as a lot of time can be saved that will contribute to developing and perfecting your app. With Flutter, the possibilities are practically endless, so even super extensive apps can be created with ease.

At FlutterDevs, We have been working on the Flutter since its Alpha version which has definitely given us an edge over the others as we’ve been fondling with flutter from the very beginning. We have adopted a design first attitude which has always led to delivering the highest quality mobile applications. FlutterDevs believes in giving back to the tech community that’s why we have been adding:

  • 90+ Open Source Contribution on GitHub
  • 100 + Technical Blogs on Medium
  • Brainstorming every day with a strong 16k+ LinkedIn Followers
  • Regular meetups around the cities to learn and grow as a community.
  • FlutterDevs Startup Incubator Programme is a platform being Initiated by FlutterDevs to avail a platform for newly emerging startups keeping in mind the factors needed for the proper functioning of a young emerging Business availing all the facilities under a single roof.

Get more Insights about the program:-

FlutterDevs at a Glance!

To strengthen you across various dimensions. Here is a showcase describing our flutter journey so far:

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 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!.

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

FlutterDevs

How Much Does it Cost to Make a Flutter App for Your Business ?

Shaiq Khan
-
0
How Much Does it Cost to Make a Flutter App for Your Business ?

Mobile apps have a prominent position in Today’s Time and age with the ability and power to transform our lives by giving us the much needed flexibility and comfort in our daily lives . With the time their need and demand have Increased at an whopping rate .Google has extended the capability of Flutter beyond mobile by releasing the new flutter 1.17 version & Dart 2.8 simultaneously . Whether you want to shop, Order food or groceries or travel anywhere in the world from one place to another place – Mobile apps have got us all covered Up.

Mobile app developers are building new apps every day, but what if there was a much easier way to do so?

If you are looking for a Cross-Platform app for your business that performs the benefits of Native, go with Flutter. Whether it is a small scale enterprise, mid-level organisations, or a startup, Flutter brings benefits to every business. Flutter can straightaway drop the mobile app development and maintenance expenses up to 60%. Let’s find out how:

Before we jump into talking about the cost of making the app, let’s quickly understand in brief what Flutter is :

What is Flutter?

Flutter is a complete SDK Open-source cross-platform mobile application development framework officially launched in an event by Google in 2018. Flutter is capable of creating apps for two of the largest mobile platforms- Android and iOS from a single codebase.

Flutter has taken the app developer community by storm. There is a wide range of advantages of this framework. Let’s take a look at some of them.

  1. Open Source
  2. Based on a Dart programming language
  3. Customised Widgets
  4. React Native Programming Architecture

Why Chose Flutter Over Others?

If you are looking forward to hiring an app developer, make sure they intend to use Flutter, So that it will make both yours and the developer’s lives easier. The cost of then developing the app will prove to be quite less, as the time to develop will reduce with the use of Flutter. What makes Flutter cost-effective?

  • Faster App Development
  • Reduced Testing Efforts
  • Access to Native Features
  • Excellent User Interface
  • Good for MVP Development

What Does It Cost Develop a Flutter App?

Developing an app can completely vary depending upon a lot of factors, it may cost less sometimes and sometimes more. Similarly, Flutter app development cost also varies depending on a few factors, Those are:

The App Development Complexity

Mobile applications are basically divided into categories starting from low-medium-high complexity. The more complexity, the more time to develop the app hence the cost will increase.

The separation is done on the factors:

  • Deployment Architecture Model
  • Admin Panel Development
  • In-built device’s features
  • Third-Party Integrations.

Categorization of the App

Due to the dynamic market change, there is a rapid shift in mobile app development. Just like complexity, apps with different features and functionalities are quite common. The number of features shift when you move from one app to the other.

Some apps have ‘x’ functionalities while the other may have ‘y’ features. This feature categorization estimates the cost of developing the app.

For Example, a currency converter app costs a lot less than a messaging app.

Application Design

There is a very common saying that ‘The first impression is the last impression’, I think it holds the same ground while developing an app for the user. The more easy and interactive app design will be, the more will be the number of users not being able to resist to use the app frequently. Beautiful designs do not come free of cost.

When it comes to Application design, the cost deciding features may also include:

  • Animations
  • Graphics
  • Design Complexity
  • Interactivity

Backend

Backend is just the backbone of your app. Only the frontend is visible to the user, but everything supporting the user action in the app is elusive. Backend controls the server, application security, app data, and data back-ups.

For estimating the cost, considering Backend holds a strong value

Location of Development Company/Agency

it is quite obvious that the cost of development of any mobile application will be more in the US than in some other countries. This is the reason many business owners chose to outsource their overall development process.

For Flutter as well, the development cost will be different for different regions across the Globe.

Maintainance

No matter how great results your app is showing, not updating it from time to time will make it lag behind in the world of apps and the app will lose traction.

The app maintenance necessity makes it an important element for Flutter development services. This may further include app updates, design changes, bug fixes, etc.

Closing Thoughts…

Flutter today is the most loved and widely used product of Google. It came in as a boon to business owners and developers across the globe. Over the years, The abilities of Flutter has managed to change the landscape of the mobile app development process. Various factors like back-end and front-end along with development services, directly affect the development process and cost of the application.

As we discussed above, Flutter is a cost-effective platform that slashes the app cost more than half and brings down the maintenance expenses by 20%

Hence, it stands as one of the best innovations by Google to the realm of App Development.

At FlutterDevs, We have been working on the Flutter since its Alpha version which has definitely given us an edge over the others as we’ve been fondling with flutter from the very beginning. We have adopted a design first attitude which has always led to delivering the highest quality mobile applications. FlutterDevs believes in giving back to the tech community that’s why we have been adding:

  • 90+ Open Source Contribution on GitHub
  • 100 + Technical Blogs on Medium
  • Brainstorming every day with a strong 16k+ LinkedIn Followers
  • Regular meetups around the cities to learn and grow as a community.
  • FlutterDevs Startup Incubator Programme is a platform being Initiated by FlutterDevs to avail a platform for newly emerging startups keeping in mind the factors needed for the proper functioning of a young emerging Business availing all the facilities under a single roof.

Get more Insights about the program:-

FlutterDevs at a Glance!

To strengthen you across various dimensions. Here is a showcase describing our flutter journey so far:

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 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!.

Related: SMS Using Twilio In Flutter

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

FlutterDevs

RealTime Firebase Database

Shaiq Khan
-
0
RealTime Firebase Database

Introduction

Do you want to use the web to store the user’s data or to provide the common data for all the users? This post will help you out in storing user’s data on a web database, sending Http request(Store +Fetch), showing Loading Progress. This database provides us Realtime information, any device connected to the database can receive the updated data within milliseconds. This database can be accessed directly without an application server.

Table of contents:

Preparing our backend

Sending POST request

Sending GET request

Preparing UI

Showing Loading Progress

Full Project

1. Preparing our backend

We will use firebase as our dummy backend because it gives us a server where we do not need to write any server-side code to communicate with the database.

If you search for firebase flutter you will find out the official documentation on how to add firebase to your FLUTTER APP and they do through a firebase plugin. So if you want to use all the services provided by the firebase in your app you can go to this link.

Add Firebase to your Flutter app
Follow this guide to add Firebase products to a Flutter app. Firebase supports frameworks like Flutter on a best-effort…firebase.google.com

I don’t want to go into much detailing about firebase because this is not a firebase post therefore, we will use the generic part of firebase which you can easily replace with other backends. So particularly for this post, the important part for us is to understand the database where we can communicate through our app directly.

Sign in — Google Accounts
Edit descriptionconsole.firebase.google.com

The above list is the link of the firebase console. Please set up your project.

There are two types of database available cloud firestore and realtime database. We will be using a realtime database because it is easy to implement.

Please set test mode while setting up a realtime database because this ensures that anyone can read and write on the database.

2. Sending POST request

Package required

  1. import the http package file into your file and update your pubspec.yaml file.
dependencies:
  http:

2. We have added as http to avoid naming clashes.

import 'package:http/http.dart' as http;

Generating request

To generate the post request we need the URL of our database which is available at the top of our database screen.

Copy the link to use it as the URL for your post request
http.post("https://fir-flutted60b0.firebaseio.com/userprofile.json",
        body: json.encode());
                             or
url =" https://fir-flutted60b0.firebaseio.com/userprofile.json";
http.post(url,body:json.encode());

Here we have also added “/userprofile.json” at the end of the URL. This is very important to add because the name “userprofile” is used as the field which is used to store the various attributes with a unique Id auto-generated by the firebase.

encode() statement is used to convert the data into JSON format.

Code Implementation:

sendData() {
    http.post("https://fir-flutter-d60b0.firebaseio.com/userprofile.json",
        body: json.encode({
          'firstName': firstNameController.text,
          'lastName': lastNameController.text,
          'email': emailController.text,
        }));
    setState(() {
      userProfile.add(Profile(
        firstName: firstNameController.text,
        lastName: lastNameController.text,
        email: emailController.text,
      ));
    });
  }

Also at the time of sending a post request, we have to add the Profile Widget into our userProfile list.

I am using setState state management technique to manage the state of the list of the user profile which changes every time the user adds a new user.

Data stored in the DATABASE using post request looks like this ………

3. Sending GET request

To fetch the data we will again need the same URL.

final response = await http.get("https://fir-flutter-d60b0.firebaseio.com/userprofile.json?");

Here we have taken an empty list named loadedProfile which is a list of widgets that will be updated every time the user adds a new profile.

final List<Profile> loadedProfile = [];

We will the JSON data from the database, therefore, we will need to add a decode() statement.

NOTE: To use encode() and decode() statements we need to import

import 'dart:convert';

Here extractedData is a variable that will store the profile. Each element of the response needs to be converted into a widget to provide a responsive UI for the user, therefore we have used the forEach() and add() statement to identify every new profile and add Profile widget into the loadedProfile list

final extractedData = json.decode(response.body) as Map<String, dynamic>;
    extractedData.forEach((profileId, profileData) {
      loadedProfile.add(
        Profile(
          email: profileData['email'],
          lastName: profileData['firstName'],
          firstName: profileData['lastName'],
        ),
      );
    });

Data fetched from the DATABASE using get request…….

4. Preparing UI

  1. NewUser Widget

In this widget, we have three TextField() and a FlatButton() which will take add from the user and generate a get request when the FlatButton() is pressed.

Now we need three different controllers for all three TextField().

final firstNameController = TextEditingController();
final lastNameController = TextEditingController();
final emailController = TextEditingController();

Widget

TextField(
                  controller: firstNameController,
                  decoration:InputDecoration(labelText:'FirstName'),
                ),
                TextField(
                  controller: lastNameController,
                  decoration: InputDecoration(labelText:'LastName'),
                ),
                TextField(
                  controller: emailController,
                  decoration: InputDecoration(labelText: 'email'),
                ),
               FlatButton(
                  child: Text("Send"),
                  color: Colors.indigo,
                  onPressed: sendData,
                ),

You can make a separate widget for this as well.

2. List of all the Users

This widget will show the list of all the users.

Profile() widget

https://gist.github.com/anmolseth06/2d2b17ae5d3822ac15f4424df969680d#file-profile-dart

I have used the ListTile() widget, you can change it if you don’t like it.

List Widget

Container(
                        child: Column(
                          children: userProfile
                              .map((ctx) => Profile(
                                    firstName: ctx.firstName,
                                    lastName: ctx.lastName,
                                    email: ctx.email,
                                  ))
                              .toList(),
                        ),
                      )

I have used the mapping method to create this widget because we don’t know the exact number of users available or uploaded by the app users.

userProfile is the list of all the users.

5. Showing Loading Progress

To show a CircularProgressIndicator() we need to initialize a new variable.

bool isloading = false;

The method sendData() needs to be converted into an async method and inside the method, we also need to initialize the await statement so that we can stop the execution of the further statement and by the time we can show the CircularProgressIndicator().

setting up the new sendData() method

Future<void> sendData() async {
    setState(() {
      isloading = true;
    });
    await http.post("https://fir-flutter-d60b0.firebaseio.com/userprofile.json",
        body: json.encode({
          'firstName': firstNameController.text,
          'lastName': lastNameController.text,
          'email': emailController.text,
        }));
    setState(() {
      isloading = false;
    });
    setState(() {
      userProfile.add(Profile(
        firstName: firstNameController.text,
        lastName: lastNameController.text,
        email: emailController.text,
      ));
    });
  }

setting up the widgets

isloading?CircularProgressIndicator(): FlatButton(
                  child: Text("Send"),
                  color: Colors.indigo,
                  onPressed: sendData,
                ),

We are changing the FlatButton() to a CircularProgressIndicator().

6. Github link

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

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.

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

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 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!.

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

www.flutterdevs.com

Ad Mob in Flutter

Shaiq Khan
-
0
Ad Mob in Flutter

In flutter, there is always a scope of improvement as we all know it is growing rapidly in App’s world and many of us also want to develop an app which could also show external thing like an advertisement, an advertisement can consist many intentions like to promote something, to give general instructions, and also to seek some reviews, By the way, we had a glance over the uses of ads but the important part for a developer is the implementation of it.

So let’s understand how to implement it:

To implement Ad Mob in your app you first need to create an account into Google Ad Mob and after creating it you will find this screen

now you need to click on ADD APP if you want to create a new ad for your app then a window will appear on your screen asking “Have you published your app on Google Play or App Store” choose your option Yes or No and move forward and you will find a screen mentioning Enter Your App Information

Here you need to enter your app name and platform according to you, and then you move forward and you get an option to create an ad unit

when you move forward by clicking on CREATE AD UNIT you get a window of all types ads unit you can implement on your screen

after selecting any unit like Banner, Interstitial, etc you move forward to Configure ad unit setting, here you select a name for your ad unit and also you can customize your ad with all the available options

and when your app ad unit is created you are done with it, its time to link the app with firebase.

For this go to App setting, here you will see Link to Firebase option

after clicking on Link to Firebase, and we need to do it separately by adding package name and bundle id respectively for android and ios, then you need to select the existing project in which you want to implement

now you are done with ad mob part now let’s move to the Flutter part

you first need to dependency in your yaml file

admob_flutter: "^latest version"

Import is now in your dart code

import 'package:admob_flutter/admob_flutter.dart';

after that need to make some changes in android and ios part,

First, we will discuss the android part, here we need to make changes in manifest.xml file, we add these two lines of metadata in the manifest file and we would put our app id of add mob in the value field

<manifest>
  <application>
    <meta-data
      android:name="com.google.android.gms.ads.APPLICATION_ID"
      android:value="ca-app-pub-3940256099942544~3347511713"/>
  </application>
</manifest>

same in the ios we add this code into the info.plist and we would put our app id of add mob in the value field

<key>GADApplicationIdentifier</key>
<string>ca-app-pub-3940256099942544~1458002511</string>
<key>io.flutter.embedded_views_preview</key>
<true/>

for example

Android

iOS

Now we make a class where we put app ids and banner ids according to the platform.

https://gist.github.com/shivanchalpandey/11a57191419930baa9c84f89427737c5#file-admob_services-dart

now let’s understand to set up an ad banner on the screen, first, we are initializing ids in initState() and later using the AdmobBanner widget to show the banner in the list as you can see this in code below.

https://gist.github.com/shivanchalpandey/11a57191419930baa9c84f89427737c5#file-admob_services-dart

Now after implementing everything correctly you will have a banner between the list. So that’s it from my side.

you can find the source code from here::

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

Thanks for reading this article if you find anything that could be improved please let me know, I would love to improve.

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 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, and Twitter for any flutter related queries.

Related: SMS Using Twilio In Flutter

Related: Using SharedPreferences in Flutter

Related: Working with MobX in Flutter

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

Page Transitions in Flutter

Shaiq Khan
-
0
Page Transitions in Flutter

In this post, we shall discuss the page routes transitions in flutter. We will use the PageRouteBuilder method to animate our tradition between two different pages. You will definitely get an illusion of all types of transitions that are possible and you will be able to customize them as well and make your own Custom Transition.

Table of contents:

Transition in flutter

Implementation

PageRouteBuilder

pageBuilder

transitionDuration

transitionBuilder

Slide Transition

Fade Transition

Scale Transition

Size Transition

Rotation Transition

Construct a PageRouteBuilder

Designing UI

Github Link

Transition in flutter

In general, a transition is nothing but moving an object from one place to another. In flutter, it is also the same but in terms of widgets like container, button, and also pages since everything in flutter is itself a widget.

We will be using a certain transition technique to animate our transition between two pages or widgets.

Implementation

To set up a transition we will require a PageRouteBuilder since in return it provides us the required constructor.

PageRouteBuilder

PageRouteBuilder is a class that extends PageRoute, it creates a route that delegates to builder callbacks.

Properties

  • barrierColor
  • barrierDismissible
  • maintainState
  • opaque
  • pageBuilder
  • transitionDuration
  • transitionBuilder

We will be using pageBuilder, transitionDuration, transitionsBuilder.

pageBuilder

This property is used to build the content of the routes.

pageBuilder: (context, animation, anotherAnimation) {
  return ReturnPage();
},

transitionDuration

It takes the duration until the transition will last between pages.

transitionDuration: Duration(milliseconds: 2000),

transitionBuilder

This property is used to build the actual transitions.

transitionsBuilder:
    (context, animation, anotherAnimation, child) {
  animation = CurvedAnimation(
      curve: curveList[index], parent: animation);
  return FadeTransition(
    opacity:animation,
    child: child,
  );
}

Slide Transition

To implement SlideTranstion we will use the SlideTransition widgets. It creates a fractional translational transition.

positional property in SlideTranstion can’t be null.

SlideTranstion widget

SlideTransition(
    position: Tween(
            begin: Offset(1.0, 0.0),
            end: Offset(0.0, 0.0))
        .animate(animation),
    child: child,
);

Fade Transition

It creates a fade/opacity transition.

opacity property can’t be null.

FadeTransition(
  opacity:animation,
  child: child,
);

Scale Transition

This transition animates the route by controlling the scale of the child.

The scale property must not be null. The alignment argument defaults to Alignment.center.

ScaleTransition(
  scale: animation,
  child: child,
);

Size Transition

This transition creates a size transition.

The axis, sizeFactor, and axisAlignment arguments must not be null. The axis argument defaults to Axis.vertical. The axisAlignment defaults to 0.0, which centers the child along the main axis during the transition.

Align(
  child: SizeTransition(
    sizeFactor: animation,
    child: child,
    axisAlignment: 0.0,
  ),
);

Rotation Transition

It creates a rotation transition.

The turn argument must not be null.

RotationTransition(
  turns: animation,
  child: child,
);

Constructing a PageRouteBuilder

Designing the UI

main.dart

I have taken all the possible transitions in my project. I have made a different file for each transition. I have used pageNamed method to connect all the files. As you can see in the gist as well.

https://gist.github.com/anmolseth06/b8106796cb31bcef35b48d8c46919c0e#file-main-dart

list.dart

I have takes all the possible Curvers that are available in flutter, so that we can see and examine all the Transition.

https://gist.github.com/anmolseth06/3b846cf48177cda4cf77d48b8160b025#file-list-dart

sizeAnimation.dart

We are building the ListTile of all the 40 curves that are available for us.

On tapping on ListTile we will see the transition linked to it.

https://gist.github.com/anmolseth06/569254ed3d45d9d542a03a935ef67f5b#file-sizeanimation-dart

Similarly, I have made 5 different files for all the Transition as you can see them in my GitHub project.

Github Link

flutter-devs/page-route-transition-demo
A new Flutter application. This project is a starting point for a Flutter application. A few resources to get you…github.com

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.

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

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 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!.

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!.

Related: VelocityX Animated Page View In Flutter

Related: Show/Hide Password Using Riverpod In Flutter

Related: Implement Theming Using Riverpod In Flutter

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

Network State Handling like Kotlin Sealed classes | Flutter

Shaiq Khan
-
0
Network State Handling like Kotlin Sealed classes | Flutter

In the article, I’ll be showing you how you can manage the state of the network just like kotlin sealed classes.

if you want to know about the kotlin sealed classes check out

Is sealed class also supported in dart?

NO , sealed classes are not supported in dart.

How can we use the same in dart?

Yes, there is an alternative in dart .
You must have heard of provider package in flutter for state management, Remi has done great work, do you know he also has create another package which is freezed.

freezed | Dart Package
Welcome to Freezed, yet another code generator for unions/pattern-matching/copy. While there are many code-generators…pub.dev

Let’s see how can we achieve network state handling just like kotlin sealed classes

Step 1: Install the dependency

dependencies: 
  freezed: <latest-version>

and

dev_dependencies:
  build_runner: <latest-version>

now run pub get

Step 2: Create a network state class

Before creating the network state class we need to see what states do we need?

We will need Success, Error, Loading, Idle states.

https://gist.github.com/ashishrawat2911/de6237ed6d5eea29e1fbf6c541bcb441#file-result-dart

Create a freezed class and define the states, If you see we have created the Result class generic so it can we used for any data. We only want data to in Result.success() and reason for failure in Result.failure() .

Now freezed will generate file , for that you need to specify

part 'result.freezed.dart';

Now run

flutter packages pub run build_runner build

Your generated will look like this

https://gist.github.com/ashishrawat2911/d15863bfdfe109241b65706b3ffe76fd#file-result-freezed-dart

Now we will be using it with streams (Bloc)

Step 3: Create a bloc class

Create a stream controller with the data type you what encapsulated with Result class you have generated.

StreamController<Result<List<Prediction>>> streamController =      StreamController<Result<List<Prediction>>>();

Create the method which will do the API handling, initial you will need to add loading into the stream so the UI will begin to load

streamController.sink.add(Result.loading());

now hit the API,

try {
      
Prediction prediction = await appRepository.getPlacesPrediction(search); 
//Do something when you get the data
        
} catch (e) {      
// When you get an exception
}

If you get the result

streamController.sink.add(Result.success(data: prediction.predictionsList));

On error, you will add the

streamController.sink.add(Result.failure(reason: e.toString()));

You can do an error handling on you own to display your own error.

See the bloc class here

https://gist.github.com/ashishrawat2911/f5dfdecf685908a4dfad4eb54d8bb497#file-prediction_bloc-dart

Step 4: Update the UI

First, we need to create the bloc instance

PlacePredictionSearchBloc placePredictionSearchBloc = PlacePredictionSearchBloc();

Now use the StreamBuilder

StreamBuilder<Result<List<Prediction>>>(

  stream: placePredictionSearchBloc.streamController.stream,

initialData: Result.idle(),

  builder: (BuildContext context,
      AsyncSnapshot<Result<List<Prediction>>> snapshot) {

   return snapshot.data.when(idle: () {
      
    }, loading: () {
     
    }, success: (List<Prediction> value) {
     
    }, failure: (String reason) {
      
    });
  },
),

Now you can we can manage the UI according to the network state.
In the initialData parameter, I have provided the Result.Idle so in the starting whatever we pass in the idle :(){} will show into UI

Check the code here

https://gist.github.com/ashishrawat2911/4892e72602204c34fade8b874ca15ede#file-result_stream_builder-dart

Thanks for reading this article

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

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.

Connect with me https://www.ashishrawat.dev

And read more articles from FlutterDevs.com

FlutterDevs has been working on Flutter from quite some time now. You can connect with us on Facebook and Twitter for any flutter related queries.

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

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

Guide to Creating a Mobile App in Flutter

Shaiq Khan
-
0
Guide to Creating a Mobile App in Flutter

Mobile application development has grown enormously over the past couple of years. As more and more people across the world have digitalized their daily tasks, the need for mobile applications has skyrocketed.

In 2020 alone, mobile apps are projected to generate $190 billion in revenue via app stores and in-app purchases and advertisements. And that’s not all, the enterprise mobility is estimated to be worth $500 billion by 2022.

Success in this extremely competitive landscape can be a reality depending on the support of a meticulously cultivated mobile apps development process. While hundreds of companies trying to take advantage of this evolution of the mobile app development industry, many do not know how to build an app successfully.

In this blog, we’ll take a look at an effective mobile app development process flow which is spread across six key phases. This is the process that we at FlutterDevs follow exclusively.

The steps we take to develop a mobile application in Flutter have proven to be the best, based on the feedback we received.

You’ve got an app Idea

As cliché as it may sound, all great applications began as an idea. But what if you don’t have an app idea, what do you do then?

If you don’t have an app idea, the best way to train yourself is to always think of things around you in terms of problems and potential ways to solve them. You want to train your mind to instinctively ask you “Why do we have to do any certain thing this way”, “is there a better way to do it?” If you have identified the inefficiency of the market, your idea is already halfway through.

The next thing is to understand the problem you have just identified. Think about why that problem exists and why hasn’t anyone build an app to solve it. Once you have an in-depth grasp of the problem, you can begin to think about the solution that you can provide to solve it.

If you are reading this because you want to build your app, let me tell you that you are going to invest a considerable amount of time and money into an app, this is the right time to check the viability and validity of your idea.

Conceptualization and Brainstorming

At this stage, your app idea starts taking its shape and turns into an actual project. The brainstorming begins with defining user cases, capturing detailed functional requirements. Once the identification of the requirements is done, the preparation of the product roadmap begins. The roadmap will include the grouping of project requirements into delivery milestones. If you have time or cost concerns, chose to go for a Minimum Viable Product (MVP) and build your MVP in Flutter for your initial Launch.

The part of this phase also includes a detailed study of your competitor’s app, which will help to figure out which features are absent in their app so that you could include in your idea to stand out.

Wireframing & UI/UX

The next big step is to wireframe the app, to understand future functionalities. Wireframes are conceptual layouts, also referred to as low-fidelity mockups. We start creating scenes and assigning each function and data. This process takes place on whiteboards or papers initially. You want to make changes here, rather than later in the process, as it is easier to erase some marks than to rewrite code. With wireframing, the focus is solely on user experience and aesthetics, not the color scheme and style.

Tools we use- Whiteboard, Pencil & Paper, Balsamiq, Sketch.

Then we move onto the UI/UX of the app. That is the User Interface and User Experience on the app. The whole purpose is to create a seamless design with a polished look. This is generally a multistep process with many review stages. What the UI/UX design gives you is the blueprint and visual direction to inform the engineer of the envisioned final product and about how it should interact, feel, and flow. Depending on the project size, scope, and budget, this design phase can be completed in a couple of hours or can take a team a whole lot of hours.

Development & Iteration

Mobile application development is an iterative process. We at FlutterDevs, personally use the ‘Agile Methodology’ that basically means that you break up the entire project development work into smaller milestones and complete the app in a series of cycles. Each cycle generally consists of four steps — Planning, Development, Testing, and Review.

A typical mobile app development project is made up of three integral parts — Backend/Server technology, API(s), and mobile app front end.

Backend

The Backend includes databases and server-side objects important for supporting your mobile app functions. The backend of your app stores and sorts the information that the end-user doesn’t see.

API

An API (Application Programming Interface) is a communication method between the app and the backend.

Mobile App Front End

The front end of an application is what the user will use. Mostly, an app has an interactive user experience that uses API(s) and backend to data management.

As each development milestone completes, it passes on to the testing team for Quality analysis and validation.

Beta Release

We at FlutterDevs, follow Beta Release of the app, in addition to, or instead of focus groups. Beta release involves getting a group of testers to use the app in the real world. They use the app just as if it had launched but in smaller numbers.

Also, beta testing is a great time to see how the app performs on various devices, operating systems, locations, and network conditions.

Deployment

Your app is now ready to submit. There are two main components of deploying the app into the world. The first is deploying your web server (API) into a production environment that is scalable. The second is deploying the app on Google Play Store and Apple App Store.

The app’s release in the app stores require metadata, including:

  • App’s Title
  • Description
  • Category
  • Keywords
  • App Icon
  • App Store Screenshots

Once the app is submitted on both the play stores, it will be live on Google later that day and on Apple within a few days, as apple reviews the app before making it live on their app store. The process may take from a few days to several weeks, depending upon the quality of the app and how closely it follows Apple’s iOS development guidelines.

DevOps

In mobile app development, there are multiple team members working collaboratively, the app is moved to multiple servers along the way, which leads to additional development time, cost, customer dissatisfaction. DevOps bridges the gap between development and operations and overcomes the challenges that come with continuous software delivery. Through DevOps, it has become relatively easy to align business goals.

Tools we use: Jenkins, Codemagic

What’s Next?

One of the most important aspects which are mostly ignored by the development agencies/companies as well as app owners is the post-development Support. There are numerous vendors in the market like Samsung, HTC, Motorola, Vivo, Nokia, etc. who have customized their android OS as per their needs. Apart from different customized android OS, they have separate hardware and display resolutions. And not just Android, even iOS platform also has different devices and display resolutions. This entire web of different Operating Systems makes it impossible to test the app on every other OS in real-time.

The first two months after the app deployment are the most crucial in terms of app sustainability. For that, we use multiple tools for bug collecting, reporting, and eventually resolving. This entire bug life-cycle ensures the app is not Error-prone after published.

Conclusion

The entire mobile app development process might seem overwhelming. There are a bunch of difficult decisions and steps to follow during the process. But one thing that we can tell you is that this is an extremely rewarding process and can be quite lucrative. Once you have an idea for implementation, the most important factor is to check it’s technical and economical feasibility.

In technical feasibility analysis, your concepts will be analyzed by our technical experts to check if it technically possible or if it has some challenges.

In economical feasibility, the project is analyzed for its budget. A lot of times the complexity of the project can increase the budget which should be kept in consideration and the client should know about this.

At FlutterDevs, our expert team members Do Free Technical and Economical Feasibility Interactions, so that the client knows about the product before investing his money.

We also have a team of expert analysts, who will analyze and compare your product/project with your direct competitors in the market and help you define a better value proposition of the project so that you stand out among the crowd.

At flutterDevs we have a huge experience in all the processes of application development like conceptualizing, developing, releasing, marketing, and maintenance of the app. We have a specialized team to handle each process.

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 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!.

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

Flutter on CodePen

Shaiq Khan
-
0
Flutter on CodePen

Introduction

In this post, we shall discuss how to use flutter in codePen. This platform enables the developers or designers to showcase and test their code snippets created using flutter, HTML, CSS, JaveScript. CodePen is really an amazing platform to share or snippets and design with thousands of developer and we also take lots of comments, suggestions, and lots of advice form great designers and experts. There are lots of views available in codepen which help us to explore more.

Codepen provides various core features such as pen editor, project editor, collection, Assets Hosting, Embeds, APIs.

Table of contents:

: What is flutter?

: What is codePen?

: Why codePen?

: Why codepen is different from DartPad?

: Flutter on CodePen

: Try templates

: My Pen usingflutter

What is flutter?

Flutter is Google’s UI toolkit for building beautiful, fast, native android, ios, and web app’s applications using a single code base called dart.

If you are new to flutter you can get started by reading the official documentation on flutter.dev

Flutter – Beautiful native apps in record time
Flutter is Google’s UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from…flutter.dev

Roadmap To Become A Flutter Developer (Resources for Beginners)
Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from…medium.com

What is codePen?

CodePen is an online community for testing and showcasing user-created flutter, HTML, CSS, and javascript code snippets.

Why codePen:-

  • The flavor of flutter, HTML, CSS, and JavaScript
  • Vim Key Bindings provides command-line keyboard shortcuts
  • Emmet toolkit provides flexibility to projects
  • Provides Collections and Tags
  • Different views for pens (Editor, Details, Full Page, Debug View)
  • Pro views (Professor Mode, Collab Mode, Live View, Presentation Mode)
  • Good Community Support

Why codepen is better then DartPad?

DartPad is also good to share or test code snippets with other developer but codepen provides us with a good community of designers and developers. It helps us a lot in getting feedbacks from other experts developer and designers. It as lots of active members which helps us in promoting our designs or snippets.

Flutter on CodePen :

  • Visit the codepen.io and Sign Up or log in.
  • After logging in you will be directed to the following page, then go to the pen section and click on the Flutter Pen tab.

This is how your first flutter app on codepen looks like….

This is a pretty and simple app with codepen provides as a default app with flutter.

Codepen is also good at providing syntax errors…

Syntax error

Try templates

Search for flutter or go to https://codepen.io/topic/flutter/templates

There are lots of templates available made by some pro designers. So let’s try one of them:-

You can modify the code and see the changes but you cant use them in your production application since they are MIT Licensed…

My Pen using flutter

I tried to build a search feature and add items to cart demo and this is how its look: Let me describe my pen…

There is two class in it SearchScreen, CartScreen. I have tried to keep the logic simple and easily understandable. There is an array ITEM_LIST that contains Item and each item gets updated every time we increase or decrease the quantity, in the CartScreen class the buyingItems list contains the Item whose quantity is greater than 0, and I have used the for loop to calculate the price of the total bag.

Item Class :

This is a simple model class that describes the properties of items such as name, price, quantity, etc…

class Item {
  final String name;
  final int price;
  final String id;
  int quantity;
  bool add;
  final String imageUrl;

  Item({
    @required this.name,
    @required this.add,
    @required this.imageUrl,
    @required this.quantity,
    @required this.price,
    @required this.id,
  });
}

Search Item logic :

SearchList is the list of Item whose name contains the text searched by the users. This list gets updated every time the user searches for the Item in the searchBar.

List<Item> searchList =
    ITEM_LIST.where((element) => element.name.contains(text)).toList();

TextFormField :

TextFormField(
  onFieldSubmitted: (covariant) {
    setState(() {
      text = covariant;
    });
  },
  decoration: InputDecoration(
      prefixIcon: Icon(
        Icons.search,
      ),
      hintText: "Search 20+ Products",
      hintStyle: TextStyle(fontSize: 15)),
)

Cart Item and price logic :

buyingItems list is the list of items whose quantity is greater than 0.

List<Item> buyingItems =
    ITEM_LIST.where((element) => element.quantity > 0).toList();

This list gets updated every time the user adds a product to its cart.

price logic :

int price = 0;
for (int i = 0; i < buyingItems.length; i++) {
  price = buyingItems[i].price * buyingItems[i].quantity + price;
}

Item Widget :

Column(
  children: <Widget>[
    Container(
      height: 150,
      child: Row(
        children: <Widget>[
          Container(
            height: 150,
            width: 150,
            child: Image.asset(
              buyingItems[index].imageUrl,
              fit: BoxFit.fill,
            ),
          ),
          Padding(
            padding: const EdgeInsets.all(12),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text(
                  buyingItems[index].name,
                  style: TextStyle(
                    fontWeight: FontWeight.w800,
                    fontSize: 18,
                    color: Colors.black87,
                  ),
                ),
                Row(
                  children: <Widget>[
                    Container(
                      height: 15,
                      child: Padding(
                        padding: const EdgeInsets.only(
                            left: 5, right: 5),
                        child: Row(
                          children: <Widget>[
                            Text(
                              stars[index].toString(),
                              style: TextStyle(
                                  color: Colors.orangeAccent),
                            ),
                            Icon(
                              Icons.star,
                              color: Colors.orangeAccent,
                              size: 15,
                            )
                          ],
                        ),
                      ),
                      decoration: BoxDecoration(
                          color: Colors.orange.withOpacity(0.1),
                          borderRadius: BorderRadius.circular(4)),
                    ),
                    Text(
                      "  ${rating[index]} Ratings",
                      style: TextStyle(
                          color: Colors.grey, fontSize: 13),
                    ),
                  ],
                ),
                Row(
                  children: <Widget>[
                    Text(
                      "MRP: ",
                      style: TextStyle(
                        fontWeight: FontWeight.w800,
                        fontSize: 13,
                        color: Colors.grey,
                      ),
                    ),
                    Text(
                      "Rs ${(buyingItems[index].price + (buyingItems[index].price * 0.4)).toString()}",
                      style: TextStyle(
                        fontWeight: FontWeight.w800,
                        fontSize: 13,
                        color: Colors.grey,
                        decoration: TextDecoration.lineThrough,
                      ),
                    ),
                  ],
                ),
                Container(
                  width: MediaQuery.of(context).size.width - 180,
                  height: 50,
                  child: Row(
                    mainAxisAlignment:
                        MainAxisAlignment.spaceBetween,
                    children: <Widget>[
                      Text(
                        "Rs ${buyingItems[index].price.toString()}",
                        style: TextStyle(
                          fontWeight: FontWeight.w800,
                          fontSize: 18,
                        ),
                      ),
                      buyingItems[index].quantity == 0
                          ? Padding(
                              padding: const EdgeInsets.all(8.0),
                              child: FlatButton(
                                color: Colors.red,
                                child: Text(
                                  "ADD",
                                  style: TextStyle(
                                      color: Colors.white),
                                ),
                                onPressed: () {
                                  setState(() {
                                    buyingItems[index].add = true;
                                    buyingItems[index].quantity++;
                                  });
                                },
                              ),
                            )
                          : Row(
                              children: <Widget>[
                                IconButton(
                                  icon: Icon(
                                    Icons.remove_shopping_cart,
                                    color:
                                        Colors.red.withOpacity(0.7),
                                  ),
                                  onPressed: () {
                                    setState(() {
                                      buyingItems[index].quantity--;
                                    });
                                  },
                                ),
                                Text(
                                  buyingItems[index]
                                      .quantity
                                      .toString(),
                                  style: TextStyle(
                                      color:
                                          Colors.deepOrangeAccent,
                                      fontWeight: FontWeight.w700,
                                      fontSize: 20),
                                ),
                                IconButton(
                                  icon: Icon(
                                    Icons.shopping_cart,
                                    color: Colors.green,
                                  ),
                                  onPressed: () {
                                    setState(() {
                                      buyingItems[index].quantity++;
                                    });
                                  },
                                )
                              ],
                            )
                    ],
                  ),
                ),
              ],
            ),
          )
        ],
      ),
    ),
    Divider(
      thickness: 3,
    )
  ],
)

You can check out my pen here

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 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!.

Related: SMS Using Twilio In Flutter

Related: Using SharedPreferences in Flutter

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

Sembast: NoSQL Database

Shaiq Khan
-
0
Sembast: NoSQL Database

This article mainly focuses light on the Sembast database, though there are many other databases that are readily used in Flutter like Hive, Moor, SQFlite but before going over the implementation of it we should have a Rough Idea of Database.

DataBase: Database is an Organized collection of structured or well-managed information basically electronically stored in the electronic device or machine. There are various types of databases present.

Some of the prominent ones are :

Relational databases: In the relational database data/items are organized as a set of tables with columns and rows. it is the most efficient and flexible way to access structured information

NoSQL/Nonrelation databases: It allows unstructured and semi-structured data to be stored and manipulated (in contrast to a relational database, which defines how all data inserted into the database must be composed). NoSQL databases grew popular as web applications became more common and more complex.

Before Letting Readers Dive Into the whereabouts of Sembast database , They will need to get some Insights about what constitute — NoSQL database as sembast database comes under the categaory of NoSQL database

NoSQL Database:

NoSQL database consists of some important aspects as it handles large no of data with ease, works faster even when you make queries to search something, and also has strong data encryption as compared to the SQL database. In SQLite, it is based on a structured approach where we require a schema with tables and columns but in NoSQL, we do not need such kinds of things and you only need to do is simply pass objects to the storage.

Some advantages of NoSQL Database :

  • The right data model: key-value, graph, wide column, or document models
  • Large volumes of structured, semi-structured, and unstructured data
  • Object-oriented programming that is easy to use and flexible
  • Efficient, scale-out architecture instead of expensive, monolithic architecture

This was a general overview of NoSQL database here after reading thing the first thing which will come in your mind is

Which one is better ? Relational(SQL) database or NoSQL

If we compare NoSQL database with Traditional(Relational) database the main thing which comes, as a result, both databases are having different qualities like if you see when we work on a relational database and if we have more raw data and when it starts growing its searching becomes slower while in NoSQL database we don’t face these problems as compared to Relational database.

Role of Database in APP

If I talk about apps, Apps are mainly designed to make suitable user interactions that make users do their work easily, and here storing data becomes a must. if your app is having a database that consists of more space your app becomes slower and to get riddance of this you need to choose your database carefully, However, storing data in the flutter is not the easiest task if you look beyond preferences and here the importance of such kinds of things(Database) for storing data comes into effect.

so here we observed each and everything which we require to know to implement Sembast and now without wasting a second let’s first take a look at what is all about Sembast.

SemBast Database:

As preferred by name Sembast db stands for Simple Embedded Application Store database.

Yet another NoSQL persistent store database solution for single process io applications. The whole document based database resides in a single file and is loaded in memory when opened. Changes are appended right away to the file and the file is automatically compacted when needed.

Sembast also supports encryption using user-defined codec so its new thing to work on. but the thing which makes it different among all NoSQL databases is its working compatibility with de-normalized data as you know that it is just a JSON file and viewing and accessing the content from the database is easy as compared to others. we can understand with an example suppose you are going to work with a database where you need to provide an id for every table and it could become a problem if you need to specify it separately but in Sembast it is quite easy that it creates ids automatically, you also get riddance from boilerplate code which improves your productivity as a developer. This was a description in simple words to make you understand.

Now let’s understand its working and implementation :

Implementation:

You first need to add some dependencies in your project

path_provider: ^latest version
 sembast: ^latest version

Like database libraries, SEMBAST needs to be opened before so that we can store and retrieve data because the library can make a connection with a file on the persistent storage where all the data is stored.

How Does Sembast stores the database rows/records?

Semabast follows the store concept, we can imagine that a table which holds data and a key associated with it, and that key is automatically generated and unique for every record. So you don’t need to generate any autoincremented key for this.

and very set of data will look like this

{“key”:1, ”store”:”StoreName”, ”value”:{}}

key: The key is an autogenerated unique entity.

store: It identifies the data table or folder for which the belongs, It could be considered as an equivalent to a table in the relational database.

value: Value is actual data that reside in the database and as Sembast is a NoSQL database so the value should be stored in key-value pair.

here we are going to create a simple example where we will create a list of books that we will create by inserting the data.

Let’s create a model class and add its toJson() and fromJson() methods.

https://gist.github.com/shivanchalaeologic/bb918bdea8f0e94e4684749bc94800b2#file-books_model-dart

DataBase setup:

Here we have created the database and you can easily understand what every piece of code does as it is well explained in this file.

https://gist.github.com/shivanchalaeologic/68e3120dca82e8a5b617df20e07b25b8#file-data_base-dart

After creating the modelclass let’s make a Dao class to deal with the database and it performs the required CRUD operation. you can see in books_dao.dart below :

Firstly we stores the name of our table/folder in a String variable and then used a intMapStoreFactory.store(folderName) to initialise it as a table/folder. then we create the instance of Books Database in line no 9. and below this line there four methods are used

:: insertBooks() : In this method, we are using add() method and passing the database instance into map format.

:: updateBooks(): In this method, we are using update() method to update the record using a finder object. The finder object is a parameter that is used to update the function.

:: delete(): It performs the delete function and work like update() but also removes the data table from the database.

:: getAllBooks(): It is the function from which we get all records from the database.

https://gist.github.com/shivanchalaeologic/459fc3c039aaea09eb6db55b1026617b#file-books_dao-dart

After creating all these files we perform actions in the UI part for which you can find the source code from here:

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

In the given video you can see that list is updating on entering values :

Conclusion:

After doing a comparative study of the Sembast NoSQL database and its working with an example we have come to point where we have found that the Sembast NoSQL database is faster, easy to manage, fast readable, a strong encryption technique and able to handle de-normalized data efficiently.

So if you want to handle your project with these qualities you need to go with the Sembast NoSQL database.

In the article, I have explained the basic architecture of Sembast you can modify this code according to your choice, this was a small introduction of Sembast from my side.

If this article has helped you a bit and found interesting please clap!👏

Thanks for reading this article if you find anything that could be improved please let me know, I would love to improve.💙

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 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!.

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

React Native vs Flutter

Shaiq Khan
-
0
React Native vs Flutter

As more and more people are embracing modernized technology, the need for a mobile app or apps has skyrocketed. Due to this growing popularity of mobile apps, companies need to build their apps to stay competitive in the market. As we all know, Android and iOS own 98% of the smartphone market. Which makes building the apps for these platforms more obvious.

Companies are looking to build apps for Android & iOS platforms with faster speeds and lesser resources. Obviously, Apple and Android have provided native tools and technologies to build apps for these platforms like iOS apps that can be built by using Xcode & Swift while for Android apps Android studio and Java/Kotlin. However, this requires the developer/engineer to learn two completely different technologies. As a result of this, companies have started using cross-platform technologies which can be used to build apps for both iOS and Android by using a single language.

Today, we’ll be comparing two of the most dominant frameworks in the cross-platform mobile development world — React Native and Flutter.

Facebook originated React Native and Google’s Flutter has created a lot of buzz in the mobility industry lately while being placed against each other to decide which is The BEST framework.

Let’s quickly look back at what these frameworks stand for to set a base for comparison of being the best solution to build android and iOS apps

What is React Native?

It is an open-source framework, developed by Facebook in 2015 as it’s own cross-platform mobile app development technology. React Native allows the developers to use React and JavaScript in addition to native platform abilities required to build mobile apps.

It comes with a bunch of benefits like:

  • Open-source
  • Ready-made components
  • Hot reload
  • Highly Reliable
  • Uses a widely popular language — JavaScript
  • Platform-specific code

The cross-platform mobile app development framework also comes with some disadvantages.

  1. Complex UI
  2. Uneven Navigation.

A few of the well-known apps made with the help of this Framework are Facebook, Artsy, Skype, Bloomberg, Vogue, etc.

What is Flutter?

Flutter is one of the leading open-source cross-platform mobile app development frameworks in the industry today. Rather than being just a framework, Flutter is a complete SDK (Software Development Kit). Everything you need to develop cross-platform apps. Google developed Flutter in 2017.

Out of numerous advantages, here are some of the major ones –

  • Open Source and free to use
  • Hot Reload
  • A complete development ecosystem.
  • Highly customizable.
  • Google’s Reliability.

It has some disadvantages, like…

  1. Larger application size.
  2. Native tools dependency for building apps.

Here’s a quick overview of technologies and companies behind Flutter & React Native.

Now that we’ve dissected each framework enough to draw a comparative infographic to know the best cross-platform app development framework. Let’s dive deeper into these details.

The Bigger Difference Between React Native and Flutter : A Broader View

User Interface

When it comes to User Interface, there is a very large gap between React Native and Flutter. React native is based on Native components whereas Flutter works seamlessly with their highly customized widget sets, which are best for getting customized UI design that gives dynamic and native support.

These widgets are both in Material Design for Google and Cupertino for apple, making UI one of the possible factors of whether or not Flutter replaces React Native.

Native Appearance

Native look and feel of an app is something that both Flutter and React Native are promoting as their USP. While the performance is the sign of React Native Development is available for the world to peek in and explore, the reason why organizations hire Flutter developers is its feature to use the device’s native functionalities without using any 3rd party component.

Both these frameworks have what it takes to go far in the journey of native look and feel for any Android and iOS app.

Configuration & Setup

Flutter’s setup process is much more straight and aligned as compared to React Native. Flutter has the benefits of automated system problem check-ups, something which is missed in React Native to a great extent.

Developer Productivity

Developer productivity is the key to building apps faster. To achieve this, it’s very important to focus on app development without any kind of distractions.

Considering the development of the app faster, both the frameworks Flutter and React Native have Hot Reload features. The hot reload feature in both frameworks lets the developer see the changes without having to recompile the code. But being a little more mature framework, React Native has great developer support in terms of IDEs and language support. Flutter is fairly new in this context, but will surely catch up as the community around flutter grows.

Testing Support

The greatest way to get feedback on the code is by writing tests. There is always a testing work-frame associated with every mature technology to create unit, integration and UI testing.

React Native is a javascript framework and there are a few unit testing frameworks available in Javascript. However, when it comes to UI testing and integration there is no official support from React Native. There are third-party tools that can be used for testing React Native apps.

On the other hand, Flutter has great documentation and a rich set of testing features to test apps at the unit, widget, and integration level.

Popularity

Between Flutter and React Native, the number of developers and the number of apps built with React native is way more than Flutter. But the gap is quickly filling in, considering Flutter is still very young. According to the Stack overflow 2019 survey, Flutter is the most lovable framework, with over 75% of people interested in it.

Seeing both the frameworks getting traction, it’s fair to say that both the frameworks are equally popular among the developer’s community.

Conclusion

React Native and Flutter both have equal advantages and disadvantages and it’s hard to say which one’s better and which is not. However, Flutter has definitely taken a lead over React Native in a lot of fields. Some of the industry experts have also said that Flutter is the future of mobile app development. But I think we should not predict the future but just rather Wait and Watch!

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 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!.

Related: SMS Using Twilio In Flutter

Related: Using SharedPreferences in Flutter

Need expert help building your Flutter app? Talk to FlutterExperts for architecture, development, and consulting support.

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