Android

Are there mechanisms in Android that allow system access without using custom solutions?

Can Handler be used to perform network requests?

Why is the onBind method used in services?

What problems can arise when using Dagger?

How is data stored in Android?

What is the difference between Android 8 and Android 9?

How safe is it to access an element in HashMap by a key that does not exist?

Why are fragments used if Activity already exists?

List markers and interfaces in Android development.

What is the main idea of the Facade pattern?

Describe the MVC interaction model.

Tell about access modifiers in Java.

What are some ways to improve the performance of the automatic garbage collector in Java?

What main problems can arise when migrating from RxJava to Kotlin Coroutines in a project?

What is the essence of the ViewHolder pattern?

How to display an SVG string as a vector file?

Tell me about the Unit and Nothing classes in Kotlin.

What do you know about the reified keyword?

Why is it necessary to separate the display and business logic in an application?

How would you implement the ability to upload and view files from the server?