A flutter package for IOS and Android to secure all or part of your app under face detection.
- Widget will lock screen when a face is not detected looking at phone
- A snapshot of the face which unlocked the screen can be accessed via a callback function.
First, this package used google Mk kit for face detection. So you have to connect your project to a firebase project and past the google-services.json
file in the android/app/
directory in your flutter project.
Second, add camera as a dependency in your pubspec.yaml
file.
#iOS
- This package uses the camera for face detection. So make sure you request for camera permission.
Add two rows to the ios/Runner/Info.plist
:
one with the key Privacy - Camera Usage Description and a usage description. and one with the key Privacy - Microphone Usage Description and a usage description. If editing Info.plist as text, add:
<key>NSCameraUsageDescription</key>
<string>your usage description here</string>
<key>NSMicrophoneUsageDescription</key>
<string>your usage description here</string>
#Android
Change the minimum Android SDK version to 21 (or higher) in your android/app/build.gradle file
.
minSdkVersion 21
If you wish to use this widget only to lock only a single page of your app or the whole app, then you can simply wrap the page you want to lock or the whole app with FaceDetectionLock
widget respectively as follows;
return FaceDetectionLock(
body: MyAppOrWidgetToSecure()
);
However, if you wish to pass an existing camera controller and/or get hold of the faces that triggered the app unlock, then do the following.
- You can get hold of the faces, that unlocked the device
- via a call back function. For this function to be initialized
- you need to set the
isBlocInitializeAbove
totrue
and make - sure you initialize the
FaceDetectionBloc
a widget above and - call the
initializeCam
event prior to calling theFaceDetectionLock
for example
MaterialApp(
home: BlocProvider(
create:(context) => FaceDetectionBloc(cameraController: controller, onFaceSnapshot: callbackFunction )
..add(const FaceDetectionEvent.initializeCam());
child: BodyWidget()
)
)
Then make sure that when calling the FaceDetectionLock
widget lower in the widget true you set the parameter isBlocInitializeAbove
to true. For instance
return FaceDetectionLock(
isBlocInitializeAbove: true,
body: BankAccountPageToSecure()
);