Passcode Lock

Protect app foreground access with a native PIN passcode lock screen. Nativine embeds native PIN and biometric lock views, requiring users to authenticate with a 4-digit/6-digit PIN or Face ID / Touch ID whenever the application resumes from the background.

1. Overview & Native Capabilities

Passcode Lock is essential for banking, health, crypto, and private content applications. Nativine's native Passcode Lock plugin renders a secure OS overlay above the web view whenever the app is re-opened:

• Automatic Inactivity Lock: Automatically lock the screen after a configurable period of background inactivity (e.g. 30 seconds).
• Biometric Unlock Fallback: Allow users to bypass manual PIN entry using Face ID, Touch ID, or fingerprint sensors.
• Encrypted PIN Storage: Store user PIN hashes securely inside iOS Keychain and Android EncryptedSharedPreferences.

2. No-Code App Builder Setup Guide

Nativine App Builder Configuration

1. Open the Nativine App Builder at /web-to-app-converter-pro.
2. Click Add-ons & Plugins in the left builder menu and locate Passcode Lock.
3. Toggle Passcode Lock to ON (or click Enable), then click Config.
4. Configure your required settings, permissions descriptors, or target web parameters.
5. Click Save Config and navigate to the Builds tab to compile your mobile application.

3. Native JS Bridge API Reference

To prompt PIN setup or trigger passcode locking programmatically in JavaScript, call nativine.passcodeLock.lock():

// Force lock app screen immediately
nativine.passcodeLock.lock();

// Prompt PIN setup dialog
nativine.passcodeLock.setupPin({
  pinLength: 4,
  callback: 'onPinCreated'
});

Parameters

4. Frequently Asked Questions (Q&A)