createService method Null safety
Initializes the facerec library (can be called only once).
By default it is recommended to use FaceSdkPlugin.createFacerecService.
Implementation
static Future<FacerecService> createService() async {
final String dataDirectory = await loadAssets();
final String libraryDirectory = await getLibraryDirectory();
final String facerecConfDir = "$dataDirectory/conf/facerec";
final String licenseDir = "$dataDirectory/license";
final String dllPath = "$libraryDirectory/${FaceSdkPlugin.nativeLibName}";
final DynamicLibrary dylib = DynamicLibrary.open(dllPath);
final createService =
dylib.lookupFunction<_facerecConstructor, _facerecConstructor>(_c_namespace + 'FacerecService_constructor2');
final exception = _getException();
final pointer =
createService(facerecConfDir.toNativeUtf8(), licenseDir.toNativeUtf8(), dllPath.toNativeUtf8(), exception);
checkException(exception, dylib);
return FacerecService(dylib, pointer, facerecConfDir, dllPath);
}