Vishnu - Faanghut

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Vishnu

Android Developer @ Shadowfax | CSE - PESU 22

Sending Data to a Running Service

Don't ask me why, but there have been cases where I was working on an Android app, which needed me to send some data to my already running Service. At one point, I even worked on a problem where I had to send data from one running service to another.

Running Sum of 1D Array

Running Sum of 1D Array

Given an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]). Return the running sum of nums.

Programmatically Check if Developer Options is Enabled

Programmatically Check if Developer Options is Enabled

If you would like to check if developer options is turned on from within your app, add this simple function which returns a Boolean value indicating if developer options is enabled or not.

Downstream Communication in Android - Server to Client

Downstream Communication in Android - Server to Client

Contacting the server from your app is simple, all you got to do is make an API call to your backend server using a library like Retrofit or Volley and get/send the required information.

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.