With Google we’ve long been in the situation of “do what we say, not what we do”. With the bottom navigation we’re here again.. I wish that one day we could use Google’s apps as examples of correct implementation of the patterns.
Let’s look at the recently updated YouTube app:
What happens when you press the back button now?
What about now? Where does the back button take you?
If you have the app installed you can give it a try but maybe when you’re reading this Google has already patched this behaviour so let me record the what actually happens at the time of writing this:
In the situation A the app will go back to the Subscriptions view with the search still being open. In the situation B the app will stay on the subscriptions view but close the search.
Well.. that behaviour is clearly wrong. Back button becomes unpredictable and confusing. A simple fix would be to make sure that when I perform a search the bottom navigation bar disappears. The conflict between Android back button and the bottom navigation only arises if the user is able to navigate in two directions at once.