Content provider basics... fuck up.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/wordsListView" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="insertword"
        android:text="@string/insert"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textInputLayout" />

    <com.google.android.material.textfield.TextInputLayout
        android:id="@+id/textInputLayout"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/editText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/enter_word_for_insert_in_to_the_user_dictionary" />
    </com.google.android.material.textfield.TextInputLayout>

    <ListView
        android:id="@+id/wordsListView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="2dp"
        app:layout_constraintBottom_toTopOf="@+id/textView"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/button" />

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity.kt

package tk.kvakva.contentproviderfuckup

import android.content.ContentValues
import android.database.Cursor
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.provider.UserDictionary
import android.util.Log
import android.view.View
import android.widget.ListView
import android.widget.TextView
import androidx.cursoradapter.widget.SimpleCursorAdapter
import com.google.android.material.textfield.TextInputEditText

private const val TAG = " ** MainActivity ** "

class MainActivity : AppCompatActivity() {
    // Defines a new Uri object that receives the result of the insertion
    lateinit var _editText: TextInputEditText
    lateinit var cursorAdapter: SimpleCursorAdapter

    // Defines a list of View IDs that will receive the Cursor columns for each row
    val wordListItems = intArrayOf(android.R.id.text1, android.R.id.text2)

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        _editText = findViewById(R.id.editText)

        listWords()
    }

    fun insertword(view: View) {
        val text: String = _editText.text.toString()
        // Defines an object to contain the new values to insert
        val newValues = ContentValues().apply {
            /*
             * Sets the values of each column and inserts the word. The arguments to the "put"
             * method are "column name" and "value"
             */
            //put(UserDictionary.Words.APP_ID, "example.user")
            put(UserDictionary.Words.LOCALE, "en_US")
            put(UserDictionary.Words.WORD, text)
            //put(UserDictionary.Words.FREQUENCY, "100")

        }
        val newUri = contentResolver.insert(
            UserDictionary.Words.CONTENT_URI,   // the user dictionary content URI
            newValues                          // the values to insert
        )

        findViewById<TextView>(R.id.textView).append("\n${newUri}")
        cursorAdapter.swapCursor(getCursor())
    }

    fun getCursor(): Cursor? {
        // Does a query against the table and returns a Cursor object
        val mCursor = contentResolver.query(
            UserDictionary.Words.CONTENT_URI,  // The content URI of the words table
            null,                       // The columns to return for each row
            null,
            null,// Either null, or the word the user entered
            null
        )
        when (mCursor?.count) {
            null -> {
                Log.d(TAG, "listWords: NULL!!!!!!!!!!!!!!!!!!!")
            }
            0 -> {
                Log.d(TAG, "listWords: No Words!!!!!!!!!!!!!!!!!!!")
            }
            else -> {
                Log.i(TAG, "listWords: cursor,count ============= ${mCursor.count}")
            }
        }
        return mCursor
    }

    fun listWords() {
        // Defines a list of columns to retrieve from the Cursor and load into an output row
        val wordListColumns: Array<String> = arrayOf(
            //UserDictionary.Words._ID,      // Contract class constant containing the word column name
            UserDictionary.Words.WORD,
            UserDictionary.Words.SHORTCUT
        )


        // Creates a new SimpleCursorAdapter
        val cursor=getCursor()
        cursor?.let {
            cursorAdapter = SimpleCursorAdapter(
                this,             // The application's Context object
                android.R.layout.two_line_list_item,           // A layout in XML for one row in the ListView
                it,                        // The result from the query
                wordListColumns,               // A string array of column names in the cursor
                wordListItems,                 // An integer array of view IDs in the row layout
                0                               // Flags (usually none are needed)
            )
            findViewById<ListView>(R.id.wordsListView).adapter = cursorAdapter
        }
    }
}