Built with react-native-reanimated v4 — every animation runs on the UI thread via shared values, interpolate, and interpolateColor, so there are no per-frame React re-renders. A single hidden TextInput captures keystrokes while the visible cells are plain views driven by React state; each CodeBox owns its own digit/placeholder shared values. The focus indicator slides with withTiming (offset for the middle separator), invalid input triggers a withSequence wiggle plus a blue→red border flash, and the loading wave sweeps cell opacity with withRepeat. react-native-keyboard-controller drives the submit button as the keyboard opens/closes via KeyboardStickyView. Tested on Expo SDK 56 (iOS + Android). Note: keyboard-controller is a native module, but it ships inside Expo Go as of Expo SDK 56, so this runs in Expo Go with no development build required.
A six-cell OTP input for verification codes, with a sliding focus indicator and digits that rise and fade in as you type. Invalid input triggers a wiggle and a red flash, and a shimmering wave runs while the code verifies. Drop it into any auth, 2FA, or phone-confirmation flow.
A collapsing scroll header with a price chart, matched to X's coin page: as the feed slides over it, the header shrinks from its top edge and fades. Pull down and it rides with the content to reveal an arrow, with opacity and drift curves sampled frame by frame from a screen recording. Drop it into a crypto, stock or token detail screen.
A React Native camera screen that opens out of the Dynamic Island, then prints each shot as an instant photo that develops on screen. Pull down and the island grows into a live VisionCamera lens; press the shutter and a Skia print feeds out of a slot and comes up over a minute, faster if you shake it. Drop it into a photo or journaling app as its capture screen.
A long-press share menu matched frame by frame to Telegram: hold the share button, slide across recent chats and let go to send. The chosen avatar arcs into a toast and turns into a checkmark, with an envelope-to-bookmark variant for Saved Messages. Drop it into a chat, feed or post list that needs one-gesture sharing.
