Flutter - Passcode Lock Screen

A Flutter package for iOS and Android for showing passcode input screen, similar to Native iOS.

Installation

First add passcode_screen as a dependency in your pubspec.yaml file.

Then use import

import 'package:passcode_screen/passcode_screen.dart';

What can it do for you?

1. Create a beautiful passcode lock view simply.

PasscodeScreen(
  title: title,
  passwordEnteredCallback: _onPasscodeEntered,
  cancelLocalizedText: 'Cancel',
  deleteLocalizedText: 'Delete',
  shouldTriggerVerification: _verificationNotifier.stream,  
);

2. Passcode input completed callback.

_onPasscodeEntered(String enteredPasscode) {
  
}

3. Notify passcode screen if passcode correct or not

final StreamController<bool> _verificationNotifier = StreamController<bool>.broadcast();

_onPasscodeEntered(String enteredPasscode) {
  bool isValid = '123456' == enteredPassword;
  _verificationNotifier.add(isValid);
}

Don't forget to close a stream

@override
void dispose() {
  _verificationNotifier.close();
  super.dispose();
}

4. Customize UI.

Customize circles

class CircleUIConfig {
  final Color borderColor;
  final Color fillColor;
  final double borderWidth;
  final double circleSize;
  double extraSize;
}

Customize keyboard

class KeyboardUIConfig {
  final double digitSize;
  final TextStyle digitTextStyle;
  final TextStyle deleteButtonTextStyle;
  final Color primaryColor;
  final Color digitFillColor;
  final EdgeInsetsGeometry keyboardRowMargin;
  final EdgeInsetsGeometry deleteButtonMargin;
}

Landscape Support

iOS & Android

Plugin is totally platform agnostic. No configuration required - the plugin should work out of the box.

Contributions

Warmly welcome to submit a pull request!

Passcode Lock Screen

Passcode Lock Screen is owned and maintained by Redeyes Dev

Used in production

Passkeep - Passwords Keeper

Contributors

Vladimir Hudnitsky BeDaut mix1009 pixnbit ssanderson

Relase notes:

1.0.0+1:

Basic implementation of a widget.

• You could show a widget, enter passcode and validate it.

1.0.1

• Added isValidCallback to help you handle success scenario. isValidCallback will be invoked after passcode screen will pop.

1.0.2

• Added configurable background and title color. (by @BeDaut)
• Added cancelCallback to react when user cancelled widget (by @mix1009)

1.1.0

• Provide widget instead of string for title
• Fixed digits layout
• Added flexibility to configure 'Cancel' and 'Delete' buttons as widgets
• Added flexibility to provide digits as list of strings for better customisation
• Removed navigation as default action when cancel pressed

1.1.1

• Add landscape view for the passcode screen

1.2.0

• Add dynamic size for landscape view.
• Moved 'Cancel' button to the bottom of the screen to align with iOS Native Passcode Screen style.

1.2.1

• Example updated to target Android 11
• Fixed Issue#23

1.2.2

• Fixed an issue with example build
• Example updated to show how to implement 'Reset passcode' feature