Step #6: Creating an Empty Layout
As was the case with DisplayFragment, to have EditFragment show the contents of a ToDoModel and allow editing, it helps to have a layout resource.
Right-click over the res/layout/ directory and choose “New” > “Layout resource file” from the context menu. In the dialog that appears, fill in todo_edit as the “File name” and ensure that the “Root element” is set to androidx.constraintlayout.widget.ConstraintLayout. Then, click “OK” to close the dialog and create the mostly-empty resource file.
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