A JSON Parser example project in Kotlin

AndroidTuts

11 months ago

product_list_app

This project fetches relevant JSON data from a RESTful API called DummyJson to create an application with a login screen, a screen for listing products and searching for them, and a detail screen that displays information about a selected product. All data is fetched from Kotlin using the Retrofit library. The Glide library is used to display images of the products.

Used Technologies

Kotlin programming language
Android Studio IDE
Retrofit library for making HTTP calls and parsing JSON responses
Gson Converter for serializing and deserializing JSON objects
Glide library for loading and caching images
Android Nougat API (version 7.0) or higher for compatibility with modern Android devices

Dependencies

To use this project, the following dependencies must be added to the build.gradle file:

implementation group: 'com.squareup.retrofit2', name: 'retrofit', version: '2.9.0'
implementation group: 'com.squareup.retrofit2', name: 'converter-gson', version: '2.9.0'
implementation 'com.github.bumptech.glide:glide:4.15.1'

The above dependencies include Retrofit, Gson Converter, and Glide libraries. You can add them by copying and pasting the above code to the dependencies block of your build.gradle file.

AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />

Don't forget to allow your application to connect to the Internet.

In the above image, you can see that the client app (which is my Android app in this case) sends a request to the server (which is dummyjson.com), and the server sends a response back to the client in the form of JSON data. The client app then parses the JSON data and displays it to the user.