- Why the Behaviour of the back and up buttons must be different?
- How to enable back and forward button in Android Studio?
- Does Android have a back button?
Why the Behaviour of the back and up buttons must be different?
The problem is that up and back have different behavior. If a user is at the start destination, the Up button should not be shown. When your app is launched using a deep link on another app's task, Up should take users to the hierarchical parent destination and not back to the other app.
How to enable back and forward button in Android Studio?
Open View and then click Toolbar if it is unchecked. You will now get your toolbar with back and forward navigate buttons. Best of Luck!
Does Android have a back button?
All Android devices provide a Back button for this type of navigation, so you should not add a Back button to your app's UI. Depending on the user's Android device, this button might be a physical button or a software button.