Some basic Android work

Android walking through the following content :-

Testing and debugging

• Write and execute local JVM unit tests
• Write and execute Android UI tests
• Use the system log to output debug information
• Debug and fix issues with an app's functional behavior and usability

User interface (UI) and app functionality

• Create an Activity that displays a layout
• Construct a UI with ConstraintLayout
• Create a custom view class and add it to a layout
• Add accessibility hooks to a custom view
• Apply content descriptions to views for accessibility
• Implement a custom app theme
• Display items in a RecyclerView
• Bind local data to a RecyclerView list using the paging library
• Implement menu-based or drawer navigation
• Localize the app
• Display notifications, toasts, and snackbar messages
• Schedule a background task using JobScheduler
• Efficiently run jobs in the background

App data and files

• Define data using Room entities
• Access Room database with data access object (DAO)
• Observe and respond to changing data using LiveData
• Use a Repository to handle data operations
• Read and parse raw resources or asset files
• Create persistent preference data from user input
• Change the behavior of the app based on user preferences