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Subhanu Majumder
Subhanu Majumder

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Is iOS 26’s Liquid Glass as big a deal for Flutter as we’re making it out to be?

Is Liquid Glass really the Flutter killer everyone's saying it is?

Before diving in — apologies for the long gap since my last post. I've been dealing with some personal matters that needed my attention, but I'm back now with something worth your time.


Introduction

At WWDC 2025, Apple dropped a bomb: Liquid Glass, a system‑wide, translucent UI aesthetic rolling out across iOS 26, iPadOS 26, macOS Tahoe, watchOS 26, and tvOS 26, inspired by visionOS and real‑world optical effects.

Click‑bait headlines followed swiftly:

  • “iOS 26's Liquid Glass just killed Flutter”
  • “React Native already supports Liquid Glass — Flutter is dead!”

This blog counters that one‑sided narrative — offering a clear-eyed, technically nuanced defense of Flutter's resilience and adaptability.


The Architectural Divide: Canvas vs. Native‑Views

React Native: Native-Driven UI, Automatic Styling

React Native renders native UI components (UIView-based), so an OS-level update like Liquid Glass is inherited automatically — no dev effort required.

Flutter: Skia Canvas, No Autofill

By contrast, Flutter draws UI via its Skia-based engine; Cupertino widgets aren't native and won't gain Liquid Glass automatically. That architectural choice means:

  • Pre‑iOS 26 Cupertino widgets will appear outdated.
  • Flutter must explicitly add support for Liquid Glass effects (Flutter issue #170310).

👉 This isn't a flaw — it's a strategic trade-off for predictable, cross-platform rendering.


Headlines Mislead — This Is Architecture, Not Obsolescence

It’s clickbait to suggest Flutter is dead. The real issue: API gaps, not a doomed runtime.

  • Flutter can't auto‑update UI because it doesn't use system views.
  • React Native gets instant Liquid Glass, but at the cost of platform divergences.

Key voices on LinkedIn acknowledge: developers must rebuild UI layers to match iOS 26 style on Flutter. The work is real, but it's not insurmountable.


Flutter’s Strong-Arm Response: Community & Core

GitHub Feature Request: iOS 26 Support in Cupertino

A lively discussion (#170310) proposes Flutter add:

  • A new LiquidGlass widget set
  • Adaptive styling based on OS version
  • Configurable theme toggles
  • Graceful fallbacks for older OS

This isn’t procrastination — it’s careful architectural planning.

Pub.dev Packages: Live Innovation

  • liquid_glass_renderer: shader‑based effect, supports blending multiple layers, requires Impeller.
  • liquid_glass: simpler blur/tint style reminiscent of earlier iOS.
  • perfect_liquid_glass: experimental, cross-platform shader.

Reddit’s r/FlutterDev had this reaction:

“It’s the first that gets close to the look and supports blending multiple shapes together. It’s customizable and pretty performant, but only works with Impeller for now…”

That’s real momentum, not abandonment.


What React Native Gains — and Loses

✅ Pros

  • Instant, OS‑native Liquid Glass
  • No extra UI coding

❌ Cons

  • Layout fragility — UI tied to OS behavior
  • Style drift between iOS and Android
  • Dependency on Apple’s implementation quality

Flutter’s canvas keeps UI consistent and under dev control, even if it requires manual updates.


Apple’s Design Dream vs. Real-World Constraints

Designers Sound Warnings

WIRED highlights important concerns:

“Beautiful and hard to read… veers into distracting or challenging to read, especially for users with visual impairments.”

Early feedback from TechRadar and Vox points to usability, clutter, and legibility issues.

Flutter's Approach Offers:

  • Full control over blur intensity, contrast
  • Adjustable opacity/tint per widget
  • Ability to fallback on simpler design for accessibility

That’s not just flexibility — that’s responsibility.


Overlooked Strengths of Flutter

A. Cross-Platform Predictability

One codebase, one rendering engine — apps behave identically from iOS to Android, desktop, and web.

React Native's native-dependence disrupts that harmony.

B. Native View Interop

Flutter supports embedding platform components (UiKitView), so you can:

  • Use Apple’s native Liquid Glass in key UI parts
  • Keep the rest of UI consistent in Flutter canvas

Best of both worlds.

C. Ecosystem Dynamism

  • Multiple packages in days, not months
  • GitHub issue with 300+ reactions shows momentum

This nimbleness outpaces some native-centric frameworks.

D. Forward-Looking Foundation

Flutter supports:

  • Custom shaders
  • AR/VR integrations
  • Desktop & web
  • Future material systems beyond blur

Liquid Glass is a single aesthetic; Flutter is a multi-environment platform.


Unspoken Considerations

  1. Performance & Energy Drain

    Liquid Glass effects demand GPU power. Flutter + Impeller + shaders = optimized cross-platform performance.

  2. Maintenance Overhead

    Flutter’s widget-based shaders are easier to manage than platform-version hacks.

  3. Accessibility First

    Opacity and blur can reduce clarity. Flutter lets you tune effects to ensure WCAG compliance.

  4. Future Stability

    Apple’s design direction can shift; Flutter’s decoupled rendering means apps won't break with beta changes.


Conclusion — Flutter: Adapting, Not Abandoning

Liquid Glass is not a dagger to Flutter’s heart — it’s a wake-up call.

The headlines suggest death, but deep down, Flutter is:

  • Architecturally sound
  • Community-driven
  • Developer-controlled
  • Futures-proofed

Yes, there’s UI work to do. But the ecosystem is already evolving:

  • GitHub roadmap in motion
  • Packages delivering shader effects
  • Accessibility & performance at the fore

The clickbait says "dead." The reality? Flutter is alive — and leveling up.


Final Thoughts

Flutter isn’t dead — it’s maturing. Apple’s Liquid Glass pushed cross‑platform frameworks into the spotlight. But instead of folding, Flutter is doubling down: community‑powered innovation, engine‑level flexibility, and pragmatic consistency across devices.

The result? Modern‑looking, performant, maintainable apps regardless of platform.

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