What is the function of the FragmentManager?
FragmentManager is the class responsible for performing actions on your app’s fragments, such as adding, removing, or replacing them, and adding them to the back stack.
What is Appcompat activity?
androidx.appcompat.app.AppCompatActivity. Base class for activities that wish to use some of the newer platform features on older Android devices. Some of these backported features include: Using the action bar, including action items, navigation modes and more with the setSupportActionBar(Toolbar) API.
What is the use of popBackStack in Android?
popBackStack. Pop the last fragment transition from the manager’s fragment back stack. If there is nothing to pop, false is returned. This function is asynchronous — it enqueues the request to pop, but the action will not be performed until the application returns to its event loop.
How do I get FragmentManager fragment?
FragmentManager fragmentManager = activity. getSupportFragmentManager(); FragmentTransaction fragmentTransaction = fragmentManager. beginTransaction(); Fragment newFragment = new FragmentType1(); fragmentTransaction. replace(R.
What is FragmentContainerView?
FragmentContainerView is a customized Layout designed specifically for Fragments. It extends FrameLayout , so it can reliably handle Fragment Transactions, and it also has additional features to coordinate with fragment behavior.
What is child fragment manager?
The child FragmentManager is the one that handles Fragments contained within only the Fragment that it was added to. The other FragmentManager is contained within the entire Activity .
What is a FragmentActivity?
A FragmentActivity is a subclass of Activity that was built for the Android Support Package. The FragmentActivity class adds a couple new methods to ensure compatibility with older versions of Android, but other than that, there really isn’t much of a difference between the two.
Does popBackStack destroy fragment?
FragmentManager popBackStack doesn’t remove fragment.
How can I see two fragments in activity?
The first step is to create a base activity which is gonna host the fragments which we need to display. In Android Studio, Right click on main source set folder, click on New -> Activity -> Empty Activity. Now you have created the base activity.