getRaw method

Implementation

@override
Stream<int> getRaw() {
  var timestampAtLastCall = DateTime.now().millisecondsSinceEpoch;
  return ProximitySensor.events.where((event) {
    if (DateTime.now().millisecondsSinceEpoch - timestampAtLastCall > inMillis) {
      timestampAtLastCall = DateTime.now().millisecondsSinceEpoch;
      return true;
    }
    return false;
  });
}