Tech Talk With Debabrata

With the evolution of Android development, several APIs and functions get deprecated over time to make way for more robust and flexible alternatives. One such deprecation that developers need to be aware of is the onBackPressed() method in Android. In Android, onBackPressed() was commonly used to handle back button presses within an activity. However, with the introduction of the Jetpack libraries and the emphasis on more structured navigation, this method has been deprecated. This blog will explore why onBackPressed() is deprecated and what the best alternative solutions are in Kotlin for handling back navigation. Why onBackPressed() is Deprecated The primary reasons for deprecating onBackPressed() include: Improved Navigation Architecture: Android Jetpack's Navigation Component provides a more consistent and predictable way to handle navigation, including back navigation. Lifecycle Awareness: Handling back...

Kotlin, a modern statically typed programming language, offers many powerful features to streamline coding, one of which is its support for generics. Generics enable you to write flexible and reusable code, allowing types to be parameters when defining classes, interfaces, and functions. Understanding the intricacies of generics is crucial for leveraging Kotlin's full potential. In this blog, we'll delve into the concepts of in , out , and where in Kotlin's generics. What Are Generics? Generics are a feature that allows you to define classes, interfaces, and methods with placeholder types. This way, you can create more flexible and reusable components. For instance, you can create a List<T> that can hold any type T , rather than creating separate classes for each type. class Box<T>(val value: T) fun main() { val intBox = Box(1) val stringBox = Box("Hello") } In this example, Box<T> is a generic class where T ...

When you type a query into the Google search box, it may seem like magic that you receive highly relevant results in just a fraction of a second. But behind that simple search bar lies a complex and sophisticated system. Let's dive into how Google Search works, from crawling and indexing to ranking and delivering results. 1. Crawling: Discovering the Web's Content The first step in Google's search process is crawling. Google uses automated programs called "spiders" or "bots" to scour the internet. These bots follow links from one page to another, discovering new and updated content along the way. The goal is to cover as much of the web as possible and gather fresh information. Googlebot starts by fetching a few web pages, and then follows the links on those pages to find new URLs. This process is continuous and ensures that Google's database stays current with the ever-changing internet. 2. Indexing: Organizing the Information Once the web pages are ...