Support for viewpager,resource idling

Can we have support for viewpager with tablayout.
Use cases are-
- Current active tab
- Change tab selection as per index

Also, can we have something related to resource idling
the use case for this

- Click on tab layout index
- Wait till the list is visible (waitTillViewIsVisible)
- Click on 2nd pos

`fun waitTillViewIsVisible(matcher: Matcher): ViewAction = object : ViewAction {

override fun getConstraints(): Matcher {
return Matchers.any(View::class.java)
}

override fun getDescription(): String {
return StringDescription().let {
matcher.describeTo(it)
"wait until: $it"
}
}

override fun perform(uiController: UiController, view: View) {
if (!matcher.matches(view)) {
ViewPropertyChangeCallback(matcher, view).run {
try {
IdlingRegistry.getInstance().register(this)
view.viewTreeObserver.addOnDrawListener(this)
} finally {
view.viewTreeObserver.removeOnDrawListener(this)
IdlingRegistry.getInstance().unregister(this)
}
}
}
}}`