// TODO 3 IN DAY 4
        search_view.setOnQueryTextListener(object : androidx.appcompat.widget.
        SearchView.OnQueryTextListener {
            override fun onQueryTextSubmit(query: String?): Boolean {
                return false
            }

            override fun onQueryTextChange(newText: String?): Boolean {
                adapter.clear()
                var siswaDataSource = SiswaDataSource(this@ListActivity)
                var siswa = siswaDataSource.search(newText!!)
                adapter.addAll(siswa)
                adapter.notifyDataSetChanged()
                return false

            }

        })