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Two Sum - Solution to LeetCode Problem #1

Two Sum - Solution to LeetCode Problem #1

While this is an extremely simple problem, it has been asked in Apple, Amazon, Adobe, Google, Microsoft, Meta and tons of other companies. Problem Statement Given an array of integers nums and an integer target, return the indices of the two numbers such that they add up to target. You

App LifeCycle Callbacks - Detect When the User Exits Your App

App LifeCycle Callbacks - Detect When the User Exits Your App

Ever wondered how to detect when your app's user presses the back button or home button and exits your app? Do you want to add analytics or some custom logic like dumping/storing data when the user opens or leaves your app? If the answer to any of these questions

Detecting Sim Change on Android

Ever wondered how online payment apps like Google Pay, Phone Pe and numerous other UPI apps detect when you change the SIM on your device? Want to implement a similar feature for your android app to prevent fraud? Do you want to ensure the SIM used for logging in to

Implement a Cache for ExoPlayer

Implement a Cache for ExoPlayer

In this article, let's learn how to implement caching when streaming with ExoPlayer. For your convenience, this article provides code samples in both Java and Kotlin.