Note:

• Create notes and Save them locally
• Add Title and Content
• Select note color
• Lock note with a password
• Add Images to note
• Delete Note
• Add or Remove Note from Folder (Note has 0 or 1 Folder "One to one relation")
• Save changes when the back button pressed
• Doesn't save empty note

Folder:

• Create Folders to group notes
• Delete Folder
• Rename Folder
• Delete all folder notes
• Add Multiple notes to Folder (Folder has 0 to many Notes "One-to-many relation")

Search:

• Search Notes by either title or content

Minimum SDK level 21

Kotlin based, Coroutines together with Flow for asynchronous streams and one side viewModel communication.

Dagger Hilt for dependency injection.

DateTimeFormatter for parsing date-time objects.

Compose:

• Jetpack Compose for the UI.
• Compose Destination KSP library that hides the complex, non-type-safe and boilerplate code you would have to write otherwise.
• Compose Pager Provides paging layouts for Jetpack Compose.
• Accompanist: A group of libraries that aim to supplement Jetpack Compose with features that are commonly required by developers
• Coil Compose: An image loading library for Android backed by Kotlin Coroutines for loading async images for compose.
• System UI controller Provides easy-to-use utilities for updating the System UI bar colors within Jetpack Compose.
• Extended Icons Provides a full set of Material icons to be used with Compose.

JetPack:

• Lifecycle - Dispose of observing data when the lifecycle state changes.
• ViewModel - UI-related data holder, lifecycle aware.
• Room: Persistence library that provides an abstraction layer over SQLite database.
• SaveStateHandler to handle process death and pass data between composables.

Architecture:

• Clean Architecture divided into three layers (Data, Domain and UI).
• MVI Architecture (Model-View-Intent).
• Repository pattern.
• Use ViewModels to handle Non-UI actions and Expose only one UI state for each screen to have single source of truth.
• UI passes actions to ViewModels and observe on single UI state.