local_captcha

Description:

local captcha

Flutter Local Captcha #
This is a fake captcha widget that helps speed up the development of prototype/demo app.
This captcha widget is designed to work locally, with minimum setup, and with basic functions like a real captcha.
This is NOT a real anti-bot solution and is NOT recommended to use in production app.
Features #

Light weight, pure dart.
Easy to use. Highly customizable.

Known Issues #

[Fixed] Terrible scrolling performance on iOS devices when Impeller is enabled. As a temporary solution, you can disable Impeller by adding the '--no-enable-impeller' flag to the 'flutter run' command.

Live Preview #
Website Demo
Installation #
dependencies:
local_captcha: ^1.0.4
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Import #
import 'package:local_captcha/local_captcha.dart';
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Usage #
The controller
// Init controller.
final _localCaptchaController = LocalCaptchaController();

// Validate captcha code.
_localCaptchaController.validate(value);

// Refresh captcha code.
_localCaptchaController.refresh();

// Remember to dispose controller when you no longer need it.
@override
void dispose() {
_localCaptchaController.dispose();

super.dispose();
}
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The widget
LocalCaptcha(
key: ValueKey('to tell widget should update'),
controller: _localCaptchaController,
height: 150,
width: 300,
backgroundColor: Colors.grey[100]!,
chars: 'abdefghnryABDEFGHNQRY3468',
length: 5,
fontSize: 80.0,
textColors: [
Colors.black54,
Colors.grey,
Colors.blueGrey,
Colors.redAccent,
Colors.teal,
Colors.amber,
Colors.brown,
],
noiseColors: [
Colors.black54,
Colors.grey,
Colors.blueGrey,
Colors.redAccent,
Colors.teal,
Colors.amber,
Colors.brown,
],
caseSensitive: false,
codeExpireAfter: Duration(minutes: 10),
);
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Example #
See the complete example at GitHub repo, ./example/main.dart file.