Armee Technology Services Interview Questions and Answers

To set equal spacing between childs of constraint layout, use the chain style property.

• Create a chain of the views that need equal spacing using the chain style property.

• Set the chain style to spread inside the constraint layout.

• Adjust the margins of the views to control the spacing.

• Use the layout_constraintHorizontal_chainStyle or layout_constraintVertical_chainStyle attribute to set the chain style.

• Example: app:layout_constraintHorizontal_chainStyle="spread"

Context in Android refers to the current state of the application. There are different types of context in Android with varying scopes and lifecycles.

• Context is an abstract class in Android that allows access to application-specific resources and classes.

• There are three main types of context in Android: Application Context, Activity Context, and Service Context.

• Application Context is tied to the lifecycle of the application and is available throughout the application.

• Activity...read more

The garbage collector in Android automatically manages memory by reclaiming unused objects.

• Garbage collector identifies objects that are no longer referenced by the program.

• It frees up memory occupied by these objects, making it available for future use.

• The process involves marking objects as reachable or unreachable, and then reclaiming memory from unreachable objects.

• Garbage collection can be triggered automatically or manually using System.gc().

• Example: If an object is cre...read more

Dagger is required for dependency injection in Android development.

• Dagger helps in managing dependencies and reduces boilerplate code.

• It provides compile-time safety and improves code readability.

• Dagger also helps in testing and modularizing the codebase.

• It is widely used in Android development for building scalable and maintainable apps.