NoteDetailFragment.kt

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        val rootView = inflater.inflate(R.layout.fragment_note_detail, container, false)
        viewModel.currentNote.observe(this, Observer {
            it?.let {
                rootView.detail_id_field.text = it.noteId
                rootView.detail_title_editor.text.set(it.title)
                rootView.detail_content_editor.text.set(it.content)
            }
        })
        
        rootView.detail_title_editor.afterTextChanged { saveNote() }
        rootView.detail_content_editor.afterTextChanged { saveNote() }
        
        return rootView
    }