Unable to find android UI element

Support
1

I am trying to select an element by using findElementByAndroidUIAutomator for multiple child selector.
Xpath will also be good.

findElementByAndroidUIAutomator(
“new UiSelector().className(“android.widget.RelativeLayout”).index(3).instance(0).childSelector(new UiSelector().className(“android.widget.LinearLayout”).index(1)).childSelector(new UiSelector().className(“android.widget.ImageView”).index(1));”);