Contact management App📱📱 using Java & room database in Android

Publicado el: 13 agosto 2023
en el canal de: NTech
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Learn how to build a contact management app in Android using Java & Room database.

In this tutorial, we will build a simple contact management app that allows users to add, delete, update, and view contacts. We will use the Room database to store the contacts data locally on the user's device.

The Room database is a lightweight SQLite object-relational mapper (ORM) that makes it easy to store and retrieve data in a database. It provides a number of features that make it ideal for use in Android apps, such as:

Abstraction of the underlying SQLite database

Automatic schema migrations

Support for CRUD operations

LiveData support for observing changes to the database

By the end of this tutorial, you will have learned how to:

Create a Room database

Define database entities

Create a DAO to access the database

Use LiveData to observe changes to the database

Add, delete, update, and view contacts in the database

This tutorial is for beginners who are new to Android development and Room database. No prior knowledge of Android development or Room database is required.

Here are the steps involved in building the contact management app:

Create a new Android project.

Add the Room dependency to the project.

Create a Room database.

Define database entities.

Create a DAO to access the database.

Use LiveData to observe changes to the database.

Add, delete, update, and view contacts in the database.

Here are some resources that you may find helpful:

Room documentation: https://developer.android.com/referen...

Room tutorial: https://developer.android.com/trainin...

LiveData documentation: https://developer.android.com/referen...

I hope this helps!


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