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ListView Array Adapter error"None of the following functions can be called with the arguments supplied."

I'm trying to create a fragment with a ListView with the id=lv and the ArrayAdapter doesn't seem to work
this is the fragment code
class Istoric : Fragment() {
var array = arrayOf("item1","item2")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val adapter = ArrayAdapter(this,R.layout.listview_item,array)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_istoric, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val lv1: ListView = view.findViewById(R.id.lv)
lv1.setAdapter(adapter)
}
}

You need to pass context instead of this
val adapter = ArrayAdapter(requireContext(), R.layout.listview_item, array)

BottomSheetDialogFragment.viewBinding

I struggle to do a property delegate for ViewBinding on BottomSheets.
The general Idea is similar to this
For Fragments i use something like this
fun <T : ViewBinding> Fragment.viewBinding(viewBindingFactory: (View) -> T) =
FragmentViewBindingDelegate(this, viewBindingFactory)
On BottomSheetsDialogFragments which are Fragments it does not accept the delegate.
fun <T : ViewBinding> BottomSheetDialogFragment.viewBinding(viewBindingFactory: (View) -> T) =
FragmentViewBindingDelegate(this, viewBindingFactory)
The Lifecycle of BottomSheets would be the same as on regular Fragments, so i would not expect any problems.
Anyone came up with a solution on this ?

You can still use the FragmentViewBindingDelegate and extension from Gabor.
You just also need to inflate the view inside onCreateView().
For example:
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.google.android.material.bottomsheet.BottomSheetDialogFragment
import com.zhuinden.fragmentviewbindingdelegatekt.viewBinding
class ExampleBottomSheet : BottomSheetDialogFragment() {
//Using ::bind here since the view is already inflated in onCreateView()
private val binding by viewBinding(YourCustomViewBinding::bind)
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
return inflater.inflate(R.layout.your_custom_view, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
//Use binding here or wherever you need it
}
}

Implement ViewBinding in BottomSheetFragment like this (Works for me):
class CustomBottomSheet : BottomSheetDialogFragment() {
private lateinit var binding: CustomBottomSheetBinding
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
binding = CustomBottomSheetBinding.inflate(inflater, container, false)
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
//onClick listener
binding.button.setOnClickListener {
Toast.makeText(context, "Clicked", Toast.LENGTH_LONG).show()
}
}
}

This works:
class CampaignBottomSheet : BottomSheetDialogFragment() {
private var _binding: MenuCampaignsBinding? = null
private val binding get() = _binding!!
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
_binding = MenuCampaignsBinding.inflate(layoutInflater)
binding.startCampaign.setOnClickListener { println("__print::CampaignBottomSheet") }
return binding.root
}
override fun onDestroyView() {
super.onDestroyView()
_binding = null
}
}

Unlike Fragment class, BottomSheetDialogFragment doesn't have a constructor that accepts layout resource.
You can create a custom dialog for it. Basically, copy everything from AppCompatDialogFragment and BottomSheetDialogFragment.

Where should I place viewDataBinding.lifecycleOwner = this.viewLifecycleOwner with Data Binding and Lifecycle?

The following code is from the project architecture-samples, you can see it here.
I'm not sure where I should place viewDataBinding.lifecycleOwner = this.viewLifecycleOwner between onCreateView() and onActivityCreated(), could you tell me?
class TasksFragment : Fragment() {
private lateinit var viewDataBinding: TasksFragBinding
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
viewDataBinding = TasksFragBinding.inflate(inflater, container, false).apply {
viewmodel = viewModel
}
setHasOptionsMenu(true)
//viewDataBinding.lifecycleOwner = this.viewLifecycleOwner Can I place here?
return viewDataBinding.root
}
override fun onActivityCreated(savedInstanceState: Bundle?) {
super.onActivityCreated(savedInstanceState)
// Set the lifecycle owner to the lifecycle of the view
viewDataBinding.lifecycleOwner = this.viewLifecycleOwner
}
..
}

onActivityCreated is deprecated. You should use onViewCreated or onCreateView.
private var binding: TasksFragBinding? = null
override fun onCreate(savedInstanceState: Bundle?) {
setHasOptionsMenu(true)
}
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val viewDataBinding = TasksFragBinding.inflate(inflater, container, false).apply {
viewmodel = viewModel
lifecycleOwner = viewLifecycleOwner
}
this.binding = viewDataBinding
return viewDataBinding.root
}
override fun onDestroyView() {
super.onDestroyView()
binding = null
}

Getting error findViewById when initiate recyclerview in a fragment

I have tested this code in another project where I didn't use fragment and wrote it in MainActivity.kt, it works. But a problem comes when I make another project using fragment so I write it in a new class (HerbalFragment.kt). It's getting error in "findViewById" for initiate Recyclerview and also getting error in "this". Here is my code (HerbalFragment.kt)
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
/**
* A simple [Fragment] subclass.
*/
class HerbalFragment : Fragment() {
private lateinit var rvHerbal: RecyclerView
private var list: ArrayList<Herbal> = arrayListOf()
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
super.onViewCreated(view, savedInstanceState)
return inflater.inflate(R.layout.fragment_herbal, container, false)
rvHerbal = findViewById(R.id.rv_herbal)
rvHerbal.setHasFixedSize(true)
list.addAll(HerbalData.listData)
showRecyclerList()
}
private fun showRecyclerList() {
rvHerbal.layoutManager = LinearLayoutManager(this)
val listHerbalAdapter = ListHerbalAdapter(list)
rvHerbal.adapter = listHerbalAdapter
}
}[![enter image description here][1]][1]
Help me please, thanks before

As far as i have noticed your code is unreachable,
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
super.onViewCreated(view, savedInstanceState)
return inflater.inflate(R.layout.fragment_herbal, container, false)
// unreachable code you are already return the view so below code will never execute
rvHerbal = findViewById(R.id.rv_herbal)
rvHerbal.setHasFixedSize(true)
list.addAll(HerbalData.listData)
showRecyclerList()
}
To fix this issue you need to change your code as i have suggested.
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
return inflater.inflate(R.layout.fragment_herbal, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
// do what ever you want here like find view ids and etc...
rvHerbal = findViewById(R.id.rv_herbal)
rvHerbal.setHasFixedSize(true)
list.addAll(HerbalData.listData)
showRecyclerList()
}
}
private fun showRecyclerList() {
rvHerbal.layoutManager = LinearLayoutManager(activity!!)
val listHerbalAdapter = ListHerbalAdapter(list)
rvHerbal.adapter = listHerbalAdapter
}

You do not have to find view if you use the kotlin data binding by this easy method
add import to this (fragment_herbal is your xml layout view file name)
import kotlinx.android.synthetic.main.fragment_herbal.*
then
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
return inflater.inflate(R.layout.fragment_herbal, container, false)
}
then use your view item without findviewbyid
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
rvHerbal.setHasFixedSize(true)
list.addAll(HerbalData.listData)
showRecyclerList()
}

How do I correctly use Kotlin to call a blank fragment from the Home fragment?

class HomeFragment : Fragment() {
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
// Inflate the layout for this fragment
val v = inflater.inflate(R.layout.fragment_home, container, false)
val fab = v.findViewById(R.id.fab) as FloatingActionButton
fab.setOnClickListener {
val blankFragment = BlankFragment()
val manager = childFragmentManager
manager.beginTransaction().replace(R.id.frame_container, blankFragment, blankFragment.tag).commit()
// System.out.println("You have reached the floating action button")
}
return v
}
}
Getting a no view found error. I may have issues with the R.id.frame_content but Kotlin doesn't immediately identify all id values...

This may not be the best way and I apologize for the horrible formatting I does this while answer out on my phone and it's hard to get it perfect. Anyways In the activity that holds your fragments, such as MainActivity.kt add...
supportFragmentManager.beginTransaction.add(R.id.fragment_home, HomeFragment.newInstance, "HomeFragment").commit()
In your HomeFragment.kt change the following.
class HomeFragment: Fragment(){
companion object {
fun newInstance(): HomeFragment{
return HomeFragment() }
fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val view: View = inflater!!.inflate(R.layout.fragment_home, container, false)
val activity = activity
return view
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val clickListener = View.OnClickListener { view ->
when (view.getId()) {
R.id.fab -> NextFragment()
}
}
fab.setOnClickListener(clickListener)
}
NextFragment(){
val fragManager = activity?.supportFragmentManager
fragManager?.beginTransaction()?.replace(R.id.frame_container, BlankFragment.newInstance(), "blankFragment")?.commit()
}
Make sure you make the same changes to BlankFragment.kt
class BlankFragment: Fragment(){
companion object {
fun newInstance(): BlankFragment{
return BlankFragment() }
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val view: View = inflater!!.inflate(R.layout.fragment_blank, container, false)
val activity = activity
return view
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
//Do some stuff with your views in BlankFragment here
}
}