android_tutorial

Android App Tutorials in Kotlin.

Slot Machine App

Concepts explained:

• RecyclerView
• RecyclerView.Adapter
• ListAdapter
• RecyclerView.ViewHolder
• ConstraintLayout
• RandomNumber Generation
• DataBinding
• Custom Adapter using @BindingAdapter
• DiffUtil.ItemCallback
• Multiple Item ViewTypes
• LayoutManager: LinearLayoutManager, GridLayoutManager, StaggerdGridLayoutManager
• Customze your Grid Span Size using @getSpanSize() method

Price App

Concepts explained:

• Handling Keyboard Input KeyEvent
• Inputs From EditText Field

Quiz App

Concepts explained:

• Multiscreen Activity
• Intent : Explicit and Implicit
• NavigationUI

ActionBar or AppBar

• Toolbar
• CollapsingToolbarLayout
• ActionBar
• AppBarConfiguration

Navigation Drawer

• DrawerLayout
• FragmentContainerView
• NavigationView

BottomNavigationView

LifecycleDemoActivity

• Activity Life Cycle
• Save Activity State

LifecycleDemoFragment

• Fragment Life Cycle
• Saving Fragment State

Lifecycle Aware Components - Runner App

• androidx.lifecycle Library
• Lifecycle class
• LifecycleOwner class
• LifecycleEventObserver class
• App Permission Handling
• LocationListener

Android Architecture Components - Notes App

• Room DB
• Coroutines & Flow
• ViewModel & ViewModelFactory
• LiveData
• Repository
• StartActivityForResult

Coroutine Basics - Quotes App

• Callbacks
• Coroutines
• Retrofit
• Gson Converter
• Gson Serialization
• WorkManager

Advanced Coroutines - Plants App

• Advanced LiveData
• MutableLiveData
• Transformations with map and switchMap
• set MutableLiveData and observe LiveData
• Declarative API of Flow
• Declarative Operators: combine, flowOn, conflate
• MenuProvider
• Switching between two flows using flatMapLatest
• Retrofit
• Api Service

Foto

• WorkManager Jetpack library
• WorkRequest
• WorkContinuation : WorkManager.beginUniqueWork
• Worker - doWork()
• WorkManager
• OneTimeWorkRequestBuilder by TAG
• Work Info Observer by TAG
• Cancelling Unique Work or All Work.
• Add Constraints to WorkRequest
• Make Status Notification - to Notify the Work Status
• CoroutineWorker
• Add input and Output Parameters in WorkRequest
• Chaining Multiple WorkRequest
• Unique Work
• Observing WorkRequest by uniqueId gengerated by WorkManager or Tag Name or Unique Work Name
• Cancelling Work
• Adding Work Constraints

Android UI Design

• Theme
• Styles
• View Attributes
• Alternative Resources
• Colors
• Dimensions
• TypeSpace
• TextAppearance