Нулевая ошибка отображается, когда я хочу обновить свою базу данных номеров
Привет, ребята . это мой код.
class ChosseAddress : Fragment() {
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val vl = inflater.inflate(R.layout.choose_address_layout, container, false)
val animsec: Animation =
AnimationUtils.loadAnimation(vl.context, R.anim.anim_for_btn_zoom_out)
vl.button_back_choose_address.setOnClickListener {
it.startAnimation(animsec)
childFragmentManager.beginTransaction()
.replace(R.id.choose_address_container, HamburgerFragment())
.commit()
}
val database = DataBaseRoom(requireContext())
val repository = RepositoryCart(database)
val factoryRoom = FactoryRoom(repository)
val viewmodel: ViewModelRoom = ViewModelProvider(ViewModelStoreOwner { viewModelStore },
factoryRoom).get(ViewModelRoom::class.java)
vl.edit_address.setOnClickListener {
val mDialogView =
LayoutInflater.from(context).inflate(R.layout.alertfialog_costume, null)
val dialogtext = LayoutInflater.from(context).inflate(R.layout.edit_alert_txt, null)
val mBuilder = AlertDialog.Builder(vl.context)
.setView(mDialogView)
.setCustomTitle(dialogtext)
val show = mBuilder.show()
mDialogView.edit_manually.setOnClickListener {
show.dismiss()
val mydialogview =
LayoutInflater.from(context).inflate(R.layout.alertdialog_manually, null)
val mytextcustome =
LayoutInflater.from(context).inflate(R.layout.custome_title_editmanually, null)
val alert = AlertDialog.Builder(vl.context)
alert.setView(mydialogview)
.setCustomTitle(mytextcustome)
val myalert = alert.show()
mydialogview.btn_submit_address.setOnClickListener {
val edittxt: String = mydialogview.edit_txt_change_address.text.toString()
if (edittxt.isEmpty()) {
Toast.makeText(
vl.context,
"لطفا آدرس رو وارد کرده و دکمه ثبت رو فشار دهید ",
Toast.LENGTH_SHORT
).show()
} else {
val address : String
address = edittxt
viewmodel.updatetxt(Editaddress(null , address))
myalert.dismiss()
viewmodel.getalledit().observe(viewLifecycleOwner , Observer {
val edit = it.toString()
Toast.makeText(context , "$edit" , Toast.LENGTH_SHORT).show()
})
}
}
mydialogview.cancel_btn.setOnClickListener {
myalert.dismiss()
}
}
}
return vl
}
}
Итак, когда я хочу обновить свою базу данных номеров, это дает мне ошибку, которая :
Комната.Editaddress.toString()' по ссылке на нулевой объект
Что я уже пробовал:
I tried So things like debugging : the edit text returns the value but when i want to show it with observer give me error . In my Room DAO i don't have declar any insert method and just declared an update and getall data method . there is no problem with no defining of insert method. Cause i only want to update the data not to insert any thing . anyone can help with this ? Thank's in Advanced