Architecture

Dive deep into how Primitive UI works under the hood. Learn about the primitives, rendering pipeline, and design decisions that shape this comprehensive UI component library.

Primitive UI consists of 9 components: 6 interactive UI components (Card, ToggleSwitch, Button, Slider, Input, CircularProgress) and 3 layout components (VStack, HStack, ZStack), all built using Flutter’s lowest-level APIs.

Topics

Primitives Explained

Learn about CustomPaint, Canvas, RenderBox, and the core building blocks

Rendering Pipeline

Understand how Flutter transforms widgets into pixels on screen

Design Decisions

Discover the architectural choices and trade-offs made in Primitive UI

Why Architecture Matters

Debug Effectively

Know where to look when things go wrong

Optimize Performance

Identify bottlenecks and optimization opportunities

Extend the Library

Build your own primitive components

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