Espresso AmbiguousViewMatcherException when trying to click a icon (TextView)

LinearLayout (productList) is dynamically populated with child views at runtime, as below:

@ViewById(R.id.ll_products)
LinearLayout productList;

public void createProductList() {
    productList.addView(getView(mobilePhone))
    productList.addView(getView(internet))
    productList.addView(getView(television))
}

public View getView(Product product) {
    LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    TextView layout = (LinearLayout) inflater.inflate(R.layout.row_product, null);
    TextView productIcon = (TextView) layout.findViewById(R.id.tv_product_row_icon);
    productIcon.setText(product.getProductIcon());
    productName.setText(product.getName());
}

productList is deliberately LinearLayout, not ListView.

Product list has three products - each product has icon (duplications are possible).

I would like to record a scenario where I click on the icon a second product. How do such a scenario avoiding AmbiguousViewMatcherException ?

Unfortunately, the following code will not work - three R.id.tv_product_row_icon will be found...

    ViewInteraction appCompatTextView = onView(withId(R.id.tv_product_row_icon));
    appCompatTextView.perform(scrollTo(), click());

How to specify that the second icon is to be clicked?

Unfortunately you will have to create a custom Matcher for such case.

The following matches the View with specified index:

public static Matcher<View> withIndex(final Matcher<View> matcher, final int index) {
    return new TypeSafeMatcher<View>() {
        int currentIndex = 0;

        @Override
        public void describeTo(Description description) {
            description.appendText("with index: ");
            description.appendValue(index);
            matcher.describeTo(description);
        }

        @Override
        public boolean matchesSafely(View view) {
            return matcher.matches(view) && currentIndex++ == index;
        }
    };
}

Usage appropriate for your case:

Matcher<View> secondIconMatcher = allOf(withId(R.id.tv_product_row_icon));
onView(withIndex(secondIconMatcher , 1)).perform(click());