Raheja Solar Food Processing Interview Questions and Answers

Services in Android are components that run in the background to perform long-running operations.

• Services are used to perform tasks without interacting with the user interface.

• There are two types of services: Started services and Bound services.

• Started services are used for tasks that run in the background even if the app is not in the foreground.

• Bound services are used to interact with other components in the app.

• Examples of services include music playback, file downloading,...read more

Yes, it is possible to add PDF in Android applications.

• Use PDF rendering libraries like PDF.js or AndroidPdfViewer to display PDF files in your app.

• You can also use WebView to display PDF files by loading them as a URL.

• To add PDF files as assets in your app, place them in the assets folder and access them using AssetManager.

The process and company structure of an Android Developer role

• The process involves designing, developing, and testing Android applications

• Company structure may include teams like development, design, QA, and product management

• Collaboration with cross-functional teams is essential for successful app development

Oops structure refers to Object-Oriented Programming concepts like classes, objects, inheritance, encapsulation, and polymorphism.

• Oops structure is based on the principles of classes and objects.

• It includes concepts like inheritance, where a class can inherit properties and methods from another class.

• Encapsulation is another key concept, where data is kept private within a class and accessed through public methods.

• Polymorphism allows objects of different classes to be treated...read more

MVVM is an architectural design pattern that separates the user interface from the business logic and data model.

• Model - Represents the data and business logic

• View - Represents the UI components

• ViewModel - Acts as a mediator between the Model and View, handling data manipulation and updates

• Data binding is used to connect the View and ViewModel

Grand Central Dispatch is a technology used in iOS and macOS to manage concurrent operations by allowing tasks to be executed concurrently and efficiently.

• Grand Central Dispatch (GCD) is a low-level API for managing concurrent operations.

• It allows tasks to be executed concurrently on multicore hardware.

• GCD automatically manages the execution of tasks and optimizes performance.

• GCD provides dispatch queues to manage tasks, including serial and concurrent queues.

• Example: dispatc...read more

OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

• OOPS focuses on creating objects that interact with each other to solve a problem.

• It involves concepts like Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that opera...read more