Android

Android components

• What are the main components of Android application?
• What is Activity?
• Describe Activity lifecycle
• What is BroadcastReceiver?
• What is ContentProvider?
• What is Service?
• What is the difference between Service and IntentService?
• What do you know about Foreground Services?
• What is Context?
• What is the difference between Dialog and DialogFragment?
• What is savedInstanceState bundle?
• What is Widget?
• What do you know about FileProvider?
• What do you know about Handler, MessageQueue, Looper?

View & ViewGroup

• What is View?
• Describe View lifecycle
• What is ViewGroup? How are they different from Views?
• What is RecyclerView?
• What is the difference between RecyclerView and ListView?
• What do you know about RecyclerView ItemDecoration?
• What do you know about DiffUtil?
• What is ViewStub?
• What do you know about Chrome custom tabs?
• What is SurfaceView?
• What is the difference between @id and @+id?
• What is Overdraw?
• What is Spannable?
• What is dark theme?
• What do you know about slices?

Fragment

• What is Fragment?
• Describe Fragment lifecycle
• How to communicate with fragments?

Compose

• What is Jetpack Compose?
• Describe jetpack compose phases
• What do you know about side effects in jetpack compose?
• What do you know about ViewCompositionStrategy?

Architecture components

• What is Jetpack?
• What is ViewModel?
• What is LiveData?
• What do you know about lifecycle library?
• What is Navigation component?
• What do you know about paging library?
• What do you know about Room?
• What is the difference between Room and SQLite?
• What do you know about Converters in Room?
• What is WorkManager?
• What is Data binding?
• What do you know about View Binding?
• What is the difference between view binding and data binding?
• What do you know about DataStore?
• What do you know about App Startup library?
• What do you know about Activity Result APIs?

Android manifest

• What do you know about AndroidManifest?
• What launch modes do you know?
• What permission protection level do you know?
• What is installLocation tag?
• What do you know about Auto Backup?
• What do you know about taskAffinity?
• What do you know about Intent Filter?

Intents

• What do you know about Intents?
• What is Pending Intent?
• What is Sticky Intent?

Resources

• How to support different screen size in android?
• What do you know about -nodpi, -anydpi qualifiers?
• What is the difference between raw and assets folders?

Security

• What security best practices you know?
• What is proguard?

Gradle

• What is Gradle?
• What is the difference between build type, product flavor and build variant?
• What do you know about Version catalog?

Android collections

• What do you know about ArrayMap?
• What do you know about SparseArray?

Other

• What is the difference between Serializable and Parcelable?
• Describe android modularization in general
• What modularization patterns do you know?
• What types of modules do you know?
• What do you know about App Bundles?
• What do you know about Play Feature Delivery?
• What is Play App Signing?
• What tools for multithreading do you know?
• What do you know about tasks and the back stack?
• What do you know about accessibility?
• What is ANR?
• What do you know about app startup time?
• What do you know about Lint?
• What ways do you know to reduce the size of an application?
• What do you know about downloadable fonts?
• What do you know about Splash screen and SplashScreen library?