Why Choose Flutter for App Development and how to use it in widgets?

What better choice for a app development platform than Flutter, which has rapidly become the popular choice among mobile and web app developers.

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With almost all businesses today taking a mobile-first approach, there is an upsurge in the need to build attractive, feature-rich and high-performance apps and do so rapidly. Organizations want there apps to be ready fast and want to launch these apps in the market ahead of competition.What better choice for a app development platform than Flutter, which has rapidly become the popular choice among mobile and web app developers.

What is Flutter?

Flutter was launched by Google at the Mobile World Congress in 2017. It is an open source UI framework that allows mobile and web app developers to build native apps on iOS and Android. The reason why Flutter gained such popularity with application development companies so quickly was because Flutter uses a single codebase for mobile app development or even for an interface on multiple platforms. Flutter mobile app development thus is fast, and Flutter also provides mobile app developers with platform-specific features like scrolling, fonts, navigational patterns etc that allow the application development company to offer its customers a unique look and natural feel.

Another useful feature for Flutter app developers is that it’s the only framework with mobile SDK and the only one with reactive style views without using JavaScript. Flutter is highly customizable and has extensible widgets, but it does not use OEM widgets or DOM WebViews. So if you want to build an app that is unique and feature-rich then you should hire Flutter app developers to build a stunning user experience.

Why Choose Flutter for App Development?

Faster App Development

Flutter allows mobile app developers to build for both IOS and Android. Developers can also modify widgets and build an engaging native interface, because the rendering engine in Flutter is very productive and excellent for developing native platforms.

Build Attractive UI

It goes without saying that an attractive UI is an essential for any mobile app. Flutter comes with features like Material Design for Android and Cupertino for iOS, that help an application development company build engaging and visually appealing apps. These widgets not only make the app attractive but also user-friendly and easy to navigate.

Accessible Native Features and SDKs

Flutter comes with many native codes, third-party integrations, and platform APIs which make app development very easy. Flutter app developers can easily access its native features and SDKs and reuse the widely-used programming languages for IOS and Android such as Swift and Kotlin.

Design Standards Compliant

Flutter ensures that an app’s design components are compliant with the design standards of each type of OS, and that every single app element is updated to meet the standards of all devices. A Flutter app development company can also develop personalized widgets by combining the design standards of Android and iOS.

Customizable and Reusable Widgets

Flutter comes packed with a rich library of reusable and easily customizable widgets for Android and iOS, thus giving mobile app developers the power to easily create a powerful UI experience.

Creating Reusable Widgets in Flutter Apps

Flutter widgets are built using a modern framework similar to React. Now why are widgets so important? Everything within a Flutter application is a Widget be it simple text, buttons or screen layouts. Widgets determine the overall look and feel of the UI of any app, given the current configuration and state. If there is a change in a widget’s state, then the widget rebuilds its description, which the framework compares with the previous description. This allows it to figure out the minimal changes needed in the underlying render to transition between states.

Commonly used widgets in Flutter

The Text widget lets developers create a run of styled text within the app.

Row and column widgets are used to build flexible layouts in both the horizontal (Row) and vertical (Column) directions.

Instead of being linearly oriented a Stack widget allows widgets to be placed on top of each other (paint order).

The positoned widget is used to place stack children in relation to the top, right, bottom, or left edge of the stack.

The Container widget lets you create a rectangular visual element, and allows Flutter app developers to add margins, padding, etc.

Building a Reusable Flutter Widget

Typically, Flutter app developers use Dart to build a reusable widget. Dart is also a Google creation, and is strongly supported by the tech giant. Dart is quite similar to Java, C and JavaScript, and is the basis of Flutter app development framework. In Flutter there are two types of widgets, i.e. stateless and stateful. In this blog we’re going to look at building a reusable stateless widget. To be able to build reusable widgets in Flutter, a Flutter app developer has to have a good knowledge of Flutter SDK 1.7+, must have good programming skills and should be adept in Android/iOS emulator.

Reusable stateless widget

To build a reusable Flutter widget, begin by making a new screen called Reusable Screen. Then you add multiple properties to this, with each having their own type. For example, you can add String types for ScreenTitle , TileTitle and TileSubtitle, IconData type for our titleIcon etc. Now in the Reusable Screen constructor, refer to the local properties and make them required by adding @required in front of it. Then override the StatelessWidget build method and return a Scaffold where you can pass the screenTitle into the AppBar. In the next step, you will see a Card which has a child a Column. Set the mainAxisSize to a minimal and pass multiple children widgets.

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At the top of the card, you need to use a ListTile widget to pass the tileIcon , tileTitle , and tileSubtitle . Now look at the bottom of the card. Here you can add buttons that contain an action. So you can pass the cancelButtonAction and proceedButtonAction .

In the next step is where you can navigate to the ReusableScreen. You could use the onTap method or Flutter’s Navigator widget to navigate the way you want. Put the ReusableScreen widget inside the push method, following which you can reuse this widget through the app.

Digifutura is a leading and best Flutter app development company. For your Flutter app development projects, reach out to us today.

Published Date: September 30, 2019

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