Autocomplete textview in fragments-CodePudding

I want to create an autoCompleteTextView in a fragment but the Array adapter is bringing an error saying that 'none of the following function can be called with the arguments supplied'. So how should I use the array adapter in a fragment class?

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)

    val frequencyArray = ArrayList<String>()
    frequencyArray.add("Daily")
    frequencyArray.add("Weekly")
    frequencyArray.add("Monthly")

    val adapter = ArrayAdapter(
        this,
        com.google.android.material.R.layout.support_simple_spinner_dropdown_item,
        frequencyArray
    )

    var autoComplete = view?.findViewById<AutoCompleteTextView>(R.id.notAuto)
    autoComplete?.setAdapter(adapter)
}

CodePudding user response：

The constructor you're trying to use is this one:

public ArrayAdapter (Context context, 
                int resource, 
                List<T> objects)

The first parameter is a Context and you're passing this, i.e. the Fragment. But a Fragment isn't a Context (unlike an Activity) so you have to grab one. Just use requireContext() instead - you'll have one by the time onViewCreated is called (you get it before onCreate)

    val adapter = ArrayAdapter(
        requireContext(),
        com.google.android.material.R.layout.support_simple_spinner_dropdown_item,
        frequencyArray
    )

CodePudding user response：

try this one?

class SecondFragment : Fragment() {

    lateinit var autoTextView : AutoCompleteTextView

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        val inflate = inflater.inflate(R.layout.fragment_second, container, false)

        autoTextView = inflate.findViewById(R.id.autoTextView)

        val languages
                = resources.getStringArray(R.array.Languages)

        // Create adapter and add in AutoCompleteTextView
        val adapter1
                = ArrayAdapter<String>(requireContext(),
            android.R.layout.simple_list_item_1, languages)
        autoTextView.setAdapter(adapter1)

        return inflate
    }
}

and check https://prnt.sc/cQpmLyDO4WsV