Contacts-Manager

A lightweight Android contacts manager app using Room DB and MVVM architecture. Stores names, phone numbers, and email addresses locally.

Inspired by the Udemy course on The Complete Android 15 Course -Build 82 Apps [Java& Kotlin] Created by Abbass Masri.

Understood and Implemented concepts-

• Android Components
  • Activity
  • startActivity()
  • Tasks & Back Stack
• Use of Intent
  • Explicit Intents
• Static User Interface
  • Views & Widgets
  • TextView
  • EditText
  • Button
    • setOnClickListener()
  • FloatingActionButton
  • ViewGroup
  • ConstraintLayout
  • LinearLayout
  • CardView
• Dynamic User Interface
  • RecyclerView
  • ItemTouchHelper
    • onSwiped left to delete data
    • onChildDraw to create fade-out animation
    • clearView
• UI Resources
  • Drawables
  • Set particular shape gradient as background
  • Insert shape as background in a LinearLayout
  • mipmap
  • Add custom App Icon
• Support User Interface
  • Toast
• Storage
  • Database
  • RoomDB
    • Entity Class
    • Data Access Object - DAO
    • ROOM Database Instance
    • Applying Singleton Design Pattern to ROOM Database
• Threading
  • Threads
  • Handler
  • ExecutorService
• Memory Leaks
  • Context
• Android Jetpack
  • Architecture Component
  • LiveData
  • ViewModel
  • DataBinding
• Architecture
  • MVVM

Output Screenshot-

Output Video-

https://github.com/user-attachments/assets/9b679f7a-c7dd-4478-98ec-f09a560aaa55