A minimal pattern-lock screen with soft glowing nodes and a smooth animated trail. Users draw a gesture across the grid to unlock, with clear success/error states and an optional “Forgot your pincode?” action. Lightweight, secure, and responsive for privacy-first flows on mobile and web.

Functionality

• 3×3 grid (configurable to 4×4/5×5) with glowing active/visited nodes

• Gradient trail animation, smooth corners, success/error feedback

• Create / confirm / verify / change pattern flows

• Rules: min/max length, block immediate repeats, optional crossing lines

• Cooldown/lockout after failed attempts with countdown

• Stealth mode (hide trail or dots) for shoulder-surfing protection

• “Forgot your pincode?” callback and optional biometric fallback

• Secure hashing + salt; store in device keychain/keystore (no plaintext)

• Theming controls: colors, glow radius, stroke width, node size, spacing

• Accessibility: large hit targets, screen-reader labels, haptics

• Localization-ready labels (e.g., “Enter current graphic lock”)

• Offline-friendly; hooks for remote verification/analytics

• Responsive and safe-area aware across phones and tablets

Use cases

• App-level lock or re-auth on resume

• Protecting settings, billing, or wallets

• Private galleries, notes, and document vaults

• Step-up verification before sensitive actions

• Parental/guest/kiosk modes with quick unlock

• Fintech and enterprise tools needing lightweight auth

• Onboarding flows offering pattern vs. PIN choice

• Multi-profile apps storing per-user patterns

Keywords
pattern lock, gesture lock, grid lock, 3×3 pattern, 4×4 pattern, 5×5 pattern, glowing nodes, trail animation, gradient stroke, stealth mode, error shake, haptic feedback, cooldown timer, lockout, forgot pincode, biometric fallback, Face ID, Touch ID, secure storage, keychain, keystore, salted hash, verification flow, set/confirm pattern, accessibility labels, localization, responsive layout, privacy screen, mobile security UI, app lock, authentication, login screen, Flutter widget, FlutterFlow component, lightweight UI, modern design, premium styling.