library/src/main/java/com/github/pwittchen/reactivesensors/library/ReactiveSensorFilter.java
public static Predicate<ReactiveSensorEvent> filterSensorChanged() {
    return new Predicate<ReactiveSensorEvent>() {
      @Override public boolean test(ReactiveSensorEvent event) throws Exception {
        return event.isSensorChanged();
      }
    };
  }
public static Predicate<ReactiveSensorEvent> filterSensorChanged() {
    return new Predicate<ReactiveSensorEvent>() {
      @Override public boolean test(ReactiveSensorEvent event) throws Exception {
        return event.isSensorChanged();
      }
    };
  }
public static Predicate < ReactiveSensorEvent > filterSensorChanged ( ) { return new Predicate < ReactiveSensorEvent > ( ) { @ Override public boolean test ( ReactiveSensorEvent event ) throws Exception { return event . isSensorChanged ( ) ; } } ; }
Predicate, which can be used in filter(...) method from RxJava
to filter all events in which sensor value has changed

@return BiPredicate<ReactiveSensorEvent, Boolean> predicate indicating if sensor value has
changed
Predicate which can be used in filter ( ... ) method from RxJava to filter all events in which sensor value has changed