3 posts tagged with "Memory Leaks"

You know that feeling when your Flutter app works perfectly in testing… but starts lagging, stuttering, or crashing after users spend some time in it? That's often not a "Flutter problem." It's a memory problem.

Memory leaks are sneaky. They don't always break your app immediately. Instead, they quietly pile up - using more RAM, slowing things down, and eventually pushing your app to a crash. The good news? Most memory leaks in Flutter are avoidable once you know where to look.

Let's walk through some practical, real-world ways to prevent memory leaks in Flutter - no fluff, just things you can actually apply.

Have you ever dated someone who just… wouldn't let go?

You break up, move on, start fresh - and boom - they're still texting, still showing up in your life, refusing to be deleted.

That's your app with a memory leak.

It's holding on to screens, data, and objects long after it should've moved on. You've moved past the Activity, but it's still lingering in memory like a clingy ex who didn't get the memo.

The worst part? You might not even know it's happening.

But users will. They will feel it in the slowdowns, the crashes, the app that once felt smooth now feeling… emotionally unavailable.

And in Android, they're not just annoying. They're dangerous. They can slow down your app, cause freezes, and eventually - boom! A crash.

Let's dive into the most common memory leak scenarios in Android. I'll walk you through real-world examples, show you how to spot them, and most importantly, how to fix them.

"Hey… why does this screen freeze every time I scroll too fast?"

That's what my QA pinged me at 11:30 AM on a perfectly normal Tuesday.

I brushed it off. "Probably a one-off," I thought.

But then the bug reports started trickling in:

• "The app slows down after using it for a while."
• "Navigation feels laggy."
• "Sometimes it just… dies."

That's when the panic set in.