DEV Community: Vrushali

Math in Jetpack Compose Animations

Vrushali — Wed, 03 Dec 2025 06:23:47 +0000

Math in Jetpack Compose Animations — Read the full article →

Jetpack Compose animations look simple on the surface, but there’s a lot of clever math behind easing, interpolation, and frame-smooth transitions. This article explains it beautifully.

What is a Coroutine? 🤔

Vrushali — Tue, 28 Oct 2025 14:29:34 +0000

💡 What is a Coroutine? 🤔

A simple question — yet one that traps many Android developers.

Most of us say:

“It’s used to run background tasks.”

❌ Sounds correct... until the interviewer says,

“That’s wrong.” 😅

So what is a coroutine really?

Find out here 👇

🔗 Kotlin Coroutines Explained: Why “Coroutine = Background Task” is Wrong

Why Kotlin Lets You Write `50_000` Instead of `50000` (Beginner-Friendly)

Vrushali — Fri, 17 Oct 2025 14:13:02 +0000

If you’re new to Kotlin, you might have seen something like this:

val number = 50_000

At first, it might look like a typo. But don’t worry — it’s actually a feature! Kotlin allows underscores in numbers to make large numbers easier to read, just like commas in English numbers.

Think of it this way:

50000 → “fifty thousand”

50_000 → “fifty thousand” (much easier to read)

🔹 Read the full blog on Medium
For a complete beginner-friendly explanation with more examples, check out my Medium article:
https://medium.com/@vrushalidev/why-kotlin-lets-you-write-50-000-instead-of-50000-861f132cc25e

Gradle Isn’t Slow… It’s Leveling Up Your Patience as an Android Dev

Vrushali — Fri, 26 Sep 2025 12:54:55 +0000

While Gradle builds your app, it’s actually building your patience 😌

Hit Run in Android Studio 💻, watch Gradle do its thing ⏳, and instead of getting frustrated, treat it as a mini patience workout 🧘‍♂️. Stretch 🤸‍♀️, breathe 😌, sip coffee ☕, or plan a small refactor 💻. Each progress bar is a reminder: coding isn’t just about the result ⚡—it’s about staying calm 🌿.

Read the full blog here: https://medium.com/@vrushalidev/gradle-isnt-slow-its-leveling-up-your-patience-as-an-android-dev-7bafab236dfa

🐘 May your builds be fast and your Zen strong. 💖😌

Android Studio Canary, Beta, RC & Stable Explained (in Simple Words)

Vrushali — Tue, 23 Sep 2025 06:39:58 +0000

New to Android Studio or confused by its update channels? Check out my simple guide on Canary, Beta, RC & Stable!

🚀 Canary for explorers · 🧪 Beta for early adopters · 🛠️ RC for testers · 🏗️ Stable for builders — pick what fits your workflow!

Read here

DataStore in Android: The Future of Local Key-Value Storage

Vrushali — Thu, 18 Sep 2025 15:14:12 +0000

If you're an Android developer, you might still be using SharedPreferences for storing small data. But Google now recommends Jetpack DataStore as the modern replacement! 🚀

I wrote a full guide on Medium with examples and best practices:

Read it here →

💡 Follow me for more Android tips and tutorials!

Why Every Android Dev Should Master Arrays Before Anything Else

Vrushali — Thu, 18 Sep 2025 14:59:20 +0000

Dive into the fundamentals of arrays and discover how they form the backbone of Android development. Learn about:

Array indexing & memory layout
Traversal, insertion, and deletion
How arrays power data structures like ArrayList, Stack, Queue, HashMap, and Heap

🔗 Read the full article here: Why Every Android Dev Should Master Arrays Before Anything Else

💬 Share your thoughts and experiences with arrays in Android development! Let's learn and grow together. 👩‍💻

How I Built a Flutter Custom Multi-Select Dialog Package

Vrushali — Fri, 05 Sep 2025 09:44:17 +0000

Building custom dialogs in Flutter can be tricky when you want more than the basics.

I recently built a custom multi-select dialog package to make developer life easier — here’s how.

Why a Custom Multi-Select Dialog?

Flutter’s built-in dialogs are great for simple confirmation boxes, but when it comes to multi-selection with titles, subtitles, and customization, you often end up reinventing the wheel.

So I decided to create my own reusable package.

Features I Needed

✅ Multiple item selection
✅ Support for title & subtitle
✅ Reusable across projects
✅ Clean MVVM-friendly structure

Core Implementation

showDialog(
  context: context,
  builder: (context) {
    return MultiSelectDialog(
      title: "Choose Items",
      items: ["Option A", "Option B", "Option C"],
      onConfirm: (selected) {
        print("Selected: $selected");
      },
    );
  },
);

📖 Want the full walkthrough?

Read the original blog on Medium →

Kotlin Interview Puzzle: Who Wins the Tie? Loops, Reduce & Functional Surprises

Vrushali — Fri, 05 Sep 2025 09:39:25 +0000

Sometimes the simplest puzzles are the sneakiest — especially in interviews.

Take this one:

Find the longest word in a list.

val cities = listOf("rome", "berlin", "london")

📖 Want the full story? Read the original blog on Medium

Flutter Devs: Still Confused Between Hot Reload & Hot Restart?

Vrushali — Wed, 30 Jul 2025 14:48:10 +0000

🔁 Hot Reload = Caffeine shot ☕

♻️ Hot Restart = Power nap 💤

🔁 Hot Reload

Injects updated code into the running app.
Keeps your app state alive.
Best for: UI tweaks, small widget edits.
Just save the file (Ctrl+S / Cmd+S) or click the lightning icon.

♻️ Hot Restart

Recompiles & restarts the entire app.
Resets all state.
Best for: main() changes, stuck state issues.
Use the green restart icon or press r in terminal during flutter run.

✅ Quick Tip

When in doubt:

Just changing UI? → Hot Reload
Changed logic or something feels off? → Hot Restart

🏷️ Tags

Flutter HotReload HotRestart Dart MobileDevelopment FlutterDev Debugging

Thanks for reading!

📎 Full blog → Read on Medium

3 Smart Ways to Show Toast in Jetpack Compose – Plus a Bonus Hack!

Vrushali — Sun, 20 Jul 2025 07:10:22 +0000

When I started learning Android, my senior asked me to “just show a message on the screen.”

Easy, right?

I googled around, explored some XML… and then I saw it.

Toast.makeText()

Wait… Toast?! Like… butter toast? 🍞☕

Yup. Turns out, in Android, a Toast is a little popup message that disappears on its own.

➡️ In this post, I walk through 3 smart ways to show Toast in Jetpack Compose, including:

The classic way (with context)
Using LaunchedEffect for side effects
A cleaner, reusable ToastHandler
Plus a bonus hack to debug Compose preview with fake Toasts!

🧠 It's beginner-friendly, easy to try, and fun!

👉 Read the full blog on Medium

If you find it useful, drop a 💬 in the comments or share with a fellow Android dev!

How I Learned Riverpod in Flutter: A Beginner’s Step-by-Step Guide

Vrushali — Wed, 16 Jul 2025 15:18:22 +0000

🎯 I recently started learning Riverpod for Flutter and finally built a clean login screen — without using setState.

In this post, I:

Used StateProvider to hold simple state
Built a form with ConsumerWidget
Updated UI reactively using ref.watch() and ref.read()

📚 Read the full step-by-step blog here:

👉 How I Learned Riverpod (Medium)

💬 If you're just starting out with Riverpod, this guide was made for you!

Follow me for more Flutter + Riverpod tips! 💙