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How the developers who built UpFork’s mobile made them: their code, their choices and what was hard, with the live preview in the text. 3 articles.
Behind the build · Fluid Tab Bar — Animated Liquid Bottom Navigation for React Native & Expo
How Fluid Tab Bar stretches a pill between tabs with two springs and a layout computed in worklets, and six traps of Reanimated and SVG on the web.
Ramin ValadanProved GitHub account and website, confirmed e-mail: checked by UpFork8 min readAI
6 lessons
Behind the build · Confirm Button — Two-Step Delete & Hold-to-Confirm Button for React Native & Expo
How Confirm Button draws a liquid cancel bubble with Skia geometry and a Reanimated state machine, and seven traps of React Native Skia on the web.
7 lessons
Behind the build · Arc Picker — Curved Dial Carousel & Filter Picker for React Native & Expo
How Arc Picker puts items on a true circle from one Reanimated shared value and one pan, and eight web traps in Gesture Handler, Skia, haptics and ARIA.
Ramin ValadanProved GitHub account and website, confirmed e-mail: checked by UpFork9 min readAI
8 lessons