how to add functions to onStart () | Kotlin

Question

I have a problem because I am trying to add an onReceiptsAdd () function to onStart () but I don't know how to make it work. how to add onReceiptsAdd () to onStart () here is my code:

class ScanFragment : Fragment(), OnReceiptsItemAdd {
    private var _binding: FragmentScanBinding? = null
    private val binding get() = _binding!!

    private val scanVm by viewModels<ScanViewModel>()
    private val adapter = ReceiptsAdapter(this)

    private val SCAN_DEBUG = "SCAN_DEBUG"

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?,
    ): View {
        _binding = FragmentScanBinding.inflate(inflater, container, false)
        // Inflate the layout for this fragment
        return binding.root
    }
    override fun onStart() {
        super.onStart()

        val value = binding.etBlank.text?.trim().toString()
        val from = binding.etBlank.text?.trim().toString()
        val image = binding.etBlank.text?.trim().toString()
        val rootRef = FirebaseFirestore.getInstance()
        val usersRef = rootRef.collection("receipts")
        val auth = FirebaseAuth.getInstance()
        auth.currentUser?.apply {
            usersRef.document(uid).set(mapOf(
                "id" to uid,
                "from" to from,
                "value" to value,
                "image" to image,
            )).addOnCompleteListener { task ->
                if (task.isSuccessful) {
                    Log.d("TAG", "User successfully added.")
                } else {
                    Log.d("TAG", task.exception!!.message!!)
                }
            }
        }
    }
    override fun onReceiptsAdd(receipts: dataReceipts, position: Int) {
        scanVm.addFavReceipt(receipts)
    }
}

What do you mean by add it to onStart? You mean you just want to call it during `onStart()`? Don't mark it `override` because it doesn't override anything. — Tenfour04, Oct 15 '21 at 15:37
Call it like any other function. What's stopping you? I see you're implementing an interface, so maybe `override` is OK. — Tenfour04, Oct 15 '21 at 15:47
@Tenfour04 but I don't know how to add onReceiptAdd (call) in onStart () — MaksChojniak1, Oct 15 '21 at 15:54
I just can’t understand your question. You’re already calling functions in `onStart()` so you already know how to call functions. — Tenfour04, Oct 15 '21 at 16:09
That’s the same thing you already said. Call it the same way you call any function. You already know the syntax for calling a function because you’re already doing it with other functions. — Tenfour04, Oct 15 '21 at 16:12
@Tenfour04 but I do not know how to do it. It does not work for me!!!!! — MaksChojniak1, Oct 15 '21 at 16:20
Based on my understanding, you need to call onReceiptsAdd() from adapter, I don't see any extra benefit for calling this from onStart() unless you have some exceptional case. You will not be able to get position attribute while calling it from onStart(). — Parmesh, Oct 15 '21 at 17:26

how to add functions to onStart () | Kotlin

0 Answers0