Support for viewpager,resource idling

[GauravP123]

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<View> {
    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)
            }
        }
    }
}}`

[alorma]

Hi @GauravP123 .

On theory Espresso already waits until the view changes are done before doing any other interaction.

If you are able to replicate the case in a test we can check from there.