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CocoaHeadsNL Meetup, 22 April 2026

Livestream of the CocoaHeadsNL meetup at Q42 (Rotterdam) on Apr 22, 2026. Agenda lists an intro to Q42/Eidra (19:00) and a “Custom …” session (19:15). The description provides no technical details or specific iOS APIs; expect general iOS development talks.

iOS 26 Custom Animated Keyboard ToolBar Using SwiftUI | Expandable Toolbar | Custom Keyboard Toolbar

Build a custom, animated, expandable keyboard toolbar in SwiftUI like Apple Notes. Implements a SwiftUI view with state to expand/collapse and smooth transitions, attached above the keyboard via toolbar modifiers. Notes layout/safe-area around the keyboard and usability. Takeaway: a reusable SwiftUI control for rich input tools.

Why Nobody Downloads Your App (Fix This First)

Low downloads may be due to a weak app icon. After macOS Tahoe changes, the presenter’s icon stopped working, highlighting how OS design shifts can tank conversion. Fix: refresh your icon to match the latest macOS visual language and user expectations. Takeaway: prioritize icon redesign first to restore discoverability and installs.

Xcode Instruments Time Profiler: Improve performance with AI

Use Xcode Instruments Time Profiler with AI agents to iteratively optimize app code. Add a CLI for reproducible benchmarks, run Time Profiler + os_signpost, export signpost intervals and a deep call‑tree copy, filter libs, and let the agent plan fixes—up to 25× faster

Liquid Glass Toasts Using SwiftUI | iOS 26 | Xcode 26

Create a reusable SwiftUI “Liquid Glass” toast. The tutorial builds a toast view/modifier over a ZStack, applying a glassmorphism look via Material/blur, with rounded corners and shadow, and animates show/hide using @State/@Binding, withAnimation, and transitions. Configurable duration/position. Notes: blur can impact performance; respect safe areas and contrast.

Stop guessing prompts: build landing pages from DESIGN.md

Shows how to use a DESIGN.md as a single source of truth to guide LLMs: codify brand, tokens, components, layout, and content rules so prompts reliably generate coherent design systems and production‑ready landing pages and mobile screens. Includes structure, reuse/versioning tips, and warns against ambiguity. Key takeaway: stop ad‑hoc prompting—standardize it.

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Google Open Sourced DESIGN.md. Here's Why It Matters

Google open-sourced DESIGN.md, proposing a common, machine-readable design-system spec. A shared format lets AI tools interoperate, align tokens/components, and automate UI scaffolding. For iOS teams, this could streamline handoff and AI-assisted generation. Impact depends on ecosystem adoption.

CocoaHeadsNL Meetup, 22 April 2026

Why Nobody Downloads Your App (Fix This First)

iOS 26 Custom Animated Keyboard ToolBar Using SwiftUI | Expandable Toolbar | Custom Keyboard Toolbar

This Sleep Sounds App Makes $800K a Month (Copy Their Onboarding)

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