4 min readJun 24, 2026
MasterOnceGeometryReader Control
Learn when to use GeometryReader and when to avoid it.
Build a view that reads its width and scales an image.
Repeat with height constraints.
Watch how GeometryReader affects layout priorities.
This drill prevents accidental full-screen layouts.
You learn to use it sparingly and intentionally.
Repetition makes the tradeoffs clear.
Wrap GeometryReader in a fixed frame to limit growth.
Measure only what you need to avoid layout feedback loops.
Try the repetition loop
Pick a SwiftUI concept and write it 50 times. Feel the pattern lock in.
