biometric_fingerprint

Description:

biometric fingerprint

biometric_fingerprint #
A plugin for fingerprint dialog
BIOMETRIC FINGERPRINT
The easy way to use biometric authentication in your Flutter app.
Supports Fingerprint, FaceID and Iris.
Demo example #






Getting Started #
$ flutter pub add biometric_fingerprint
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Configuration #
Change your android MainActivity to extends FlutterFragmentActivity.
import io.flutter.embedding.android.FlutterFragmentActivity

// kotlin
class MainActivity: FlutterFragmentActivity() {
...
}
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import io.flutter.embedding.android.FlutterFragmentActivity;

// java
class MainActivity extends FlutterFragmentActivity {
...
}
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If you got issue in android 8 change in res/values/styles.xml to be like this

<style name="LaunchTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- <style name="LaunchTheme" parent="@style/Theme.AppCompat.Light">--> // comment this case
<!-- Show a splash screen on the activity. Automatically removed when
the Flutter engine draws its first frame -->
<item name="android:windowBackground">@drawable/launch_background</item>
</style>

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Usage #
To check biometric type of your device.
BiometricType type = await BiometricFingerprint.type;
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Here is the list of biometric types.
BiometricType.FACE
BiometricType.FINGERPRINT
BiometricType.IRIS
BiometricType.MULTIPLE
BiometricType.NONE
BiometricType.NO_HARDWARE
BiometricType.UNAVAILABLE
BiometricType.UNSUPPORTED
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To check if your device can use biometric authentication.
bool isBiometricEnabled = await BiometricFingerprint.isEnabled;
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To using biometric authentication.
To show custom message in your biometric prompt, method encrypt and decrypt have parameters you can use to change the biometric prompt dialog.
BiometricResult result = await BiometricFingerprint.initAuthentication({
biometricKey: 'example_key', // example paramter encrypt key
message: 'This is a very secret message', // whatever you want description in dialog
title: 'Biometric Encryption', // whatever you want to write the title
subtitle: 'Enter biometric credentials to encrypt your message', // whatever you want to subtitle
description: 'Scan fingerprint or face.', // whatever you want description in dialog
negativeButtonText: 'USE PASSWORD', // whatever you want make cancel can also "CANCEL"
confirmationRequired: true, // confirmation
});
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if (result.isSuccess && result.hasData) {
// result success example
String messageKey = result.data!; // up to you make function to do login go head

} else {
print(result.errorMsg);// showing error
}
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if (result.isFailed) {
//failed case
}
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if (result.isCanceled) {
//if user cancel / close the dialog biometric or API has been closed
}
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Case use this plugin for
use case it will be up to you for using on it for login authentication for encrypt or decrypt data with biometric API.