A few days ago I experienced an interesting problem... I had to help a colleague of mine to create some Espresso UI tests and she got a really strange problem... The default Espresso actions' recording tool failed to record the action of performing a click on the open Drawer's ImageButton in the Toolbar!
For unknown reasons, the recorder created these lines of code:
ViewInteraction appCompatImageButton = onView( allOf(childAtPosition( childAtPosition(withClassName( is("android.widget.FrameLayout")), 1), 1), isDisplayed())); appCompatImageButton.perform(click());
Which is really strange... After quite some time thinking and researching I tried to find the AppCompatImageView this way and it worked:
onView(allOf(isAssignableFrom(AppCompatImageButton.class), withParent(isAssignableFrom(Toolbar.class)))) .perform(click());
So, if you have the same issues with the Espresso UI tests recording tool and the toolbar's open drawer button, try to find and click the widget this way. ☺️