Do we need to call onComplete() of subject in onDestroy() method of activity ?

If in ActivityA, it keep reference to

```
private val subjectA: PublishSubject<ObjectB> = PublishSubject.create()
private var dispose: Disposable? = null
```
Does we need to call onComplete() method of subject in onDestroy() method of Activity

```
override fun onDestroy() {
    subjectA.onComplete()
    dispose?.dispose()
    super.onDestroy()
}
```