apagarPalestrante.kt

 private fun apagarPalestrante() {
        AlertDialog.Builder(requireContext()).apply {
            setTitle("Deseja realmente apagar?")
            setNegativeButton("Não") { _, _ ->

            }
            setPositiveButton("Sim") { _, _ ->
                launch {
                    context.let {
                        PalestranteDB.getDatabase(it).dao().apagar(mPalestrante!!)
                        val action = SpeakersFragmentDirections.toHomeFragment()
                        Navigation.findNavController(requireView()).navigate(action)
                    }
                }
            }
        }.create().show()
    }