Itqualityassurance
Do apps need a back button?
However, it is not necessary to keep the back button on the home screen of the app which might have led to the closing of the application you could keep an exit button. Otherwise, we can leave that to the hardware buttons or using the home button to clear the running app.
How does back button work in Android?
The Back button appears in the system navigation bar at the bottom of the screen and is used to navigate in reverse-chronological order through the history of screens the user has recently worked with.
What does navigate up mean?
The Up button is used to navigate within an app based on the hierarchical relationships between screens. For instance, if screen A displays a list of items, and selecting an item leads to screen B (which presents that item in more detail), then screen B should offer an Up button that returns to screen A.
