As per my understanding, you can use only those methods of UiScrollable class which accepts object of UiSelector class, few scroll examples are below:-
1) scroll to an element using resource id:-
driver.findElement(MobileBy.AndroidUIAutomator("new UiScrollable(new UiSelector()."
+"scrollable(true)).scrollIntoView(new UiSelector().resourceId("resourceId"))"));
2) scroll to an element using text value:-
driver.findElement(MobileBy.AndroidUIAutomator("new UiScrollable(new UiSelector().scrollable(true))"
+ ".scrollIntoView(new UiSelector().text("textValue"))"));
browse UiSelector, UiScrollable classes of Android sdk for more options