Category: 5. Advanced Concepts

Testing is an activity, which is used for verifying and validating a software or application that is bug-free and meets the user requirements. It ensures that the actual result matches the expected result. It also helps to improve the software or application in terms of efficiency, usability, and accuracy. Testing is one of the most…

A database is an organized collection of data, which supports the storage and manipulation of data and accessed electronically from a computer system. We can organize data into rows, columns, tables, and indexes. It makes data management easy. We can store many things in the database, like name, age, picture, image, file, pdf, etc. Flutter…

In this section, we are going to learn how we can access the REST API in the Flutter app. Today, most of the apps use remote data using APIs. So, this section will be the important part for those developers who want to make their carrier in Flutter. Flutter provides http package to use http resources. The…

Sliver is a portion of the scrollable area which is used to achieve a custom scrolling effect. In other words, the sliver widget is a slice of the viewport. We can implement all of the scrollable views, such as ListView, GridView using slivers. It is a lower-level interface that provides excellent control over implementing a…

A map is used to get information about the world simply and visually. It presents the world places by showing its shape and sizes, locations and distance between them. We can add a map in our application with the use of the Google Maps Flutter plugin. This plugin can automatically access the Google Maps servers, map…

A splash screen is a launch screen, start screen, or boot screen, which is a graphical control element containing the image, logo, and current version of the software. It is the first screen of the app that displays whenever the application is loading. It can also be the app’s welcome screen that provides a simple initial…

A package is a namespace that contains a group of similar types of classes, interfaces, and sub-packages. We can think of packages as similar to different folders on our computers where we might keep movies in one folder, images in another folder, software in another folder, etc. In Flutter, Dart organizes and shares a set…

In this section, we are going to see how we can write custom platform-specific code in Flutter. Flutter is an excellent framework, which provides a mechanism to handle/access platform-specific features. This feature allows the developer to extend the functionality of the Flutter framework. Some of the essential platform-specific functionality that can be accessed easily through…