FlutterFlow pattern lock grid custom widget — a clean, minimal pattern-lock screen for fast, secure authentication. ✨
Draw a gesture across a dot grid with silky line animation, instant ✅/❌ feedback, and an optional “Forgot your pincode?” action. Perfect for app locks, sensitive screens, and privacy-first flows on mobile & web. 🔒📱

Functionality ⚙️

• 3×3 grid by default (optional 4×4 / 5×5) with smooth path drawing 🧭

• Gradient stroke, node rings, and animated active/visited states 🎨

• Flows: Create ➜ Confirm ➜ Verify ➜ Change 🔁

• Rules: min/max length, disallow repeats/overlaps (configurable) 🧩

• Error feedback: shake, color swap, haptics, cooldown/lockout ⏱️

• Stealth mode (hide trail or dots-only) 🕶️

• “Forgot your pincode?” link with custom callback 🧷

• Optional biometric fallback (Face/Touch ID) 👆🔐

• Secure hooks to hash + store the pattern via device keychain/keystore (no plaintext) 🗄️

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

• Theming: colors, line width, node size, spacing, shadows 🎛️

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

• Offline-ready; responsive across phones, tablets, and web 📶➡️📴

• Callbacks: onStart, onChange, onComplete, onError, onForgot 🧩

Use cases 🚀

• App-level lock or quick re-auth on resume

• Protect settings, billing, or wallet screens

• Private galleries, notes, and document vaults

• One-tap parental/guest/kiosk unlock

• Step-up auth before purchases or payouts

• Team/enterprise apps needing lightweight privacy gates

• Onboarding offering pattern vs. PIN choice

Keywords 🔎

pattern lock, gesture lock, grid lock, android pattern, 3×3 grid, 4×4 grid, 5×5 grid, gesture authentication, app lock, privacy screen, secure storage, hash pattern, sha-256, biometric fallback, face id, touch id, cooldown, lockout, haptic feedback, shake animation, error state, success state, stealth mode, gradient line, node ring, localization, theming, flutter widget, flutterflow component, mobile security ui, pincode fallback, forgot pincode, verification flow, responsive layout, offline support, callbacks, secure auth