android studio fragment manager remove fragment

When you use a Fragment dynamically its behaviour is much more sophisticated and it can behave like a dialog box, a 'page' in a complex UI, a form associated with a tab and so on.

When you use a Fragment statically it is very like a custom UI component that behaves like the other components - Buttons, TextFields and so on. However you might include features within the Fragment that make it especially suitable for one type of use or the other - more of this later. Notice that as a Fragment consists of a UI and a Java class it is important to realize that the way the code behaves in both cases is the same - only the treatment of the UI is different. A dynamic Fragment isn't associated with a fragment tag and it is created in association with the FragmentManager.Īs already stated, it doesn't make any difference to the way you define a Fragment, rather it is just a matter of how you make use of the Fragment.A static Fragment is included in an XML file using a fragment tag within another XML layout.However, once you have the Fragment defined there are two distinct ways you can include it in the UI - static or dynamic. The UI can be created by the Fragment either in code or by inflating an XML Layout file - it makes little difference to the way the Fragment behaves. That is, a Fragment consists of two parts - its code and its UI. The most important thing to realize is that there is no difference in the way the Fragments are created, it is only the way that they are used that differs. Static And Dynamicįirst we need to be clear about the difference between static and dynamic Fragments. While these two methods should be equivalent and produce the same results, there are important differences and it is one of the common misconceptions and errors that a Fragment is just a Fragment. You can use them in XML layouts that the system inflates via the tag or you can use them as dynamic components and add them to the UI using the Fragment Manager. If you are interested in creating custom template also see:Ī Fragment is a Java class that will generate a user interface on demand. Chapter 5 and later refer to an earlier version of Android Studio - revisit for updates. In this chapter of our intermediate-level book the focus is on static fragments.Īndroid Adventures - Mastering Fragments & Dialogs It is important to know how they differ and how to use Fragments in each mode. Static and dynamic Fragments are not equal because the system treats them very differently. It really does matter how you add a Fragment to a UI.

Android studio fragment manager remove fragment