I can't hide the Loading indicator View

Sometimes It does not hide when moving to the next fragment.

```
if (email.isEmpty()) {

showProgress(); // I defined this function using AVLoadingIndicatorView in BaseActivity

auth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(getActivity(), task -> {

hideProgress(); // hide the AVLoadingIndicatorView

if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
moveToSubjectSelectFragment();
} else {
Log.w(TAG, "createUserWithEmail:failure", task.getException());
Toast.makeText(getActivity(), "Login fail", Toast.LENGTH_SHORT).show();
}

});
}
```

Here is the showProgress(), HideProgress() function in BaseActivity

```
public void showProgress() {
runOnUiThread(new Runnable() {
@Override
public void run() {
if(activityIndicator != null) activityIndicator.show();
}
});
}

public void HideProgress() {
runOnUiThread(new Runnable() {
@Override
public void run() {
if(activityIndicator != null) activityIndicator.hide();
}
});
}

```