The ViewModelFactory is a class in the Android Architecture Components that is used to create instances of ViewModel classes. In Android, a ViewModel is used to store and manage data that is used in an activity or fragment, and survives configuration changes, such as screen rotation.

Dependency injection (DI) is a technique widely used in programming and well suited to Android development. By following the principles of DI, you lay the groundwork for good app architecture. Implementing dependency injection provides you with the following advantages: 1. Reusability of code 2. Ease of refactoring 3. Ease of testing

Sealed classes are useful in scenarios where you have a restricted set of possible values or states for a type, and you want to ensure that all possible values or states are accounted for in your code.

When a nested class is marked with a keyword inner, then it will be called as an Inner class. An inner class can be accessed by the data member of the outer class.

In Kotlin, var and val are used to declare variables. The main difference between them is that var declares a mutable variable, which means its value can be changed after it is initialized, while val declares an immutable variable, which means its value cannot be changed after it is initialized.

Android Jetpack Compose is a modern UI toolkit for building native Android apps using a declarative approach. It simplifies UI development, provides a reactive programming model, and offers powerful customization capabilities.

Android Jetpack Compose is a modern UI toolkit for building native Android apps using a declarative approach. It simplifies UI development, provides a reactive programming model, and offers powerful customization capabilities.

In Android Jetpack Compose, state management is an important aspect of building reactive UIs. The RememberSaveable function is a part of the Jetpack Compose state APIs that allows you to save and restore the state of a composable function across configuration changes, such as screen rotations.

In Kotlin, lists are a type of collection that allows you to store and manipulate a sequence of elements. Kotlin provides a variety of language constructs and standard library functions for handling lists.

In Android Jetpack Compose, the Column layout composable is used to arrange multiple composables vertically.

In Android, a view is a fundamental building block for constructing user interfaces. Views can be arranged in a hierarchical structure to create complex layouts. Each view is represented by a class, and these classes are organized into a hierarchy based on their functionality.

Every notification should respond to a tap, usually to open an activity in your app that corresponds to the notification. To do so, you must specify a content intent defined with a PendingIntent object and pass it to setContentIntent().

Kotlin logical operators are used to determine the logic between two variables or values. Returns true or false.

Android Hilt is a dependency injection framework provided by Google for Android app development. It is built on top of the popular dependency injection library called Dagger. Hilt simplifies the process of implementing dependency injection in Android applications and helps manage the dependencies of your app's components.

In Kotlin, a singleton is a design pattern that ensures that only one instance of a class is created throughout the application. Properties can be defined in singletons to provide access to the singleton instance or to store state that is shared by all instances of the singleton.

In Kotlin, a higher-order function is a function that takes one or more functions as arguments and/or returns a function as its result. Higher-order functions are used to enable more concise and expressive code, as well as to implement advanced programming concepts such as functional programming and the use of lambdas.

Dependency injection (DI) is a technique widely used in programming and well suited to Android development. By following the principles of DI, you lay the groundwork for good app architecture. Implementing dependency injection provides you with the following advantages: 1. Reusability of code 2. Ease of refactoring 3. Ease of testing

Dagger 2 walks through the dependency graph and generates code that is both easy to understand and trace, while also saving you from writing a large amount of boilerplate code you would normally need to write by hand to obtain references and pass them to other objects as dependencies.

In Dagger 2, interface injection refers to the process of injecting dependencies into an interface rather than a concrete class. While interface injection is not the primary approach in Dagger 2 (constructor or field injection is typically used), it can be achieved with the help of the @BINDS annotation.

A notification is a message that Android displays outside your app's UI to provide the user with reminders, communication from other people, or other timely information from your app. Users can tap the notification to open your app or take an action directly from the notification.