![]() ![]() When you paste the methods and inner class, you will be prompted to import various elements. With the exception of the onCreate method, move the methods, and the inner EnterHandler class, from the AddItemActivity class to the AddItemFragment class.Instantiate the binding in onCreateView using the following code: binding = FragmentAddItemBinding.inflate(inflater).name it 'binding' and declare it as a FragmentAddItemBinding Return to the AddItemFragment.kt file and declare a bindingproperty for the Fragment as you would for an activity - i.e.If the fragment doesn't appear correctly positioned in the layout ensure that its width and height are set to "match_parent" and it has constraints that constrain its top (and start) to the top of the parent view, e.g.Īpp:layout_constraintStart_toStartOf="parent"Īpp:layout_constraintTop_toTopOf="parent".Set the fragment to have an id of frAddItem.Click the error and it should provide you with a prmpt to set the layout property to the following: Be aware that this is only for the purpose of the designer preview. There should be an error relating to this, as it hasn't got a layout assigned to it and so the designed cannot show a preview.When prompted, select the only Fragment available as shown here: If you do not already have the designview for the activity_add_item.xml file open, open it and from the Palette, drag a FragmentContainerView into the view.Return to the activity_add_item.xml file and remove the Button and both EditText elements.Amend the tools:context attribute of the ConstraintLayout, so it reads as follows:.Copy the contents of the activity_add_item.xml file into the fragment_add_item.xml file.Switch to the newly created fragment_add_item.xml file, and remove the contents.All the code in onCreate, with the exception of the call to the superclass method. ![]() The constants (in the file, but outside the class).Remove each of the following from the class: Quite a lot of code is provided in the new Fragment that is not needed.Once created, you should see files called AddItemFragment.kt and fragment_add_item.xml.Name the fragment AddItemFragment, but un-check the boxes for including the fragment factory method and interface callbacks as shown below: Right click on the package folder with your existing Kotlin files in and choose New > Fragment > Fragment (blank).Make a copy of the completed ShopList application from the RecyclerView tutorial and open it in Android Studio.In this tutorial, we will adapt the RecyclerView application, so that when used in landscape orientation, it can display both the list and the fields for adding a new item, as shown here: Fragments allow us to reuse elements of code. ![]()
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