Display data from a table in Android Studio

I would like to list the data of my table but I do not get it. I do not know if my query is wrong, I have looked through all the forums and can not find anything

Class List

public class Lista extends AppCompatActivity {
ListView lv ;
ArrayList<String> lista;
ArrayAdapter adaptador;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_lista);
    lv = (ListView)findViewById(R.id.lista);
    DbHelper db = new DbHelper(getApplicationContext(),null,null,1);
    lista = db.llenar_lv();
    adaptador = new ArrayAdapter(this, android.R.layout.simple_list_item_1,lista);
    lv.setAdapter(adaptador);
}

}

DbHelper class

    public void addUser(String usurarios, String password) {
    SQLiteDatabase db = this.getWritableDatabase();

    ContentValues values = new ContentValues();
    values.put(COLUMN_usurarios, usurarios);
    values.put(COLUMN_PASS, password);

    long id = db.insert(USER_TABLE, null, values);
    db.close();

    Log.d(TAG, "Usuario insertado" + id);
}





public boolean getUser(String usurarios, String pass){
    //HashMap<String, String> user = new HashMap<String, String>();
    String selectQuery = "select * from  " + USER_TABLE + " where " +
            COLUMN_usurarios + " = " + "'"+usurarios+"'" + " and " + COLUMN_PASS + " = " + "'"+pass+"'";

    SQLiteDatabase db = this.getReadableDatabase();
    Cursor cursor = db.rawQuery(selectQuery, null);
    // Move to first row
    cursor.moveToFirst();
    if (cursor.getCount() > 0) {

        return true;
    }
    cursor.close();
    db.close();

    return false;
}

public String eliminar(String usuarios){
    String mensaje="";

    SQLiteDatabase db= this.getWritableDatabase();

    int cantidad = db.delete(USER_TABLE ,COLUMN_usurarios+"=?",new String[]{usuarios});

    if(cantidad!=0){
        mensaje="eliminado correctamente";
    }else{
        mensaje="No existe";
    }
    db.close();
    return mensaje;
}
public ArrayList llenar_lv(){
    ArrayList<String> lista = new ArrayList<>();
    SQLiteDatabase db = this.getWritableDatabase();
    String q = "SELECT * FROM users";
    Cursor registros = db.rawQuery(q,null);
    if(registros.moveToFirst()){
        do{
            lista.add(registros.getString(0));
        }while(registros.moveToNext());
    }
    return lista;

}

}

And this is the layout

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context="com.techobbyist.signuplogin.LoginActivity">
    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/lista"
        ></ListView>
</LinearLayout>

LogCat

11-25 00:48:34.475 13742-13742/com.techobbyist.signuplogin W/IInputConnectionWrapper: getTextBeforeCursor on inactive

     

InputConnection 11-25 00: 48: 34.480   13742-13742 / com.techobbyist.signuplogin W / IInputConnectionWrapper:   getCursorCapsMode on inactive InputConnection 11-25 00: 48: 34.585   13742-13742 / com.techobbyist.signuplogin W / IInputConnectionWrapper:   getCursorCapsMode on inactive InputConnection 11-25 00: 48: 34.675   13742-13742 / com.techobbyist.signuplogin W / IInputConnectionWrapper:   getSelectedText on inactive InputConnection 11-25 00: 48: 34.680   13742-13742 / com.techobbyist.signuplogin W / IInputConnectionWrapper:   getTextBeforeCursor on inactive InputConnection 11-25 00: 48: 34.680   13742-13742 / com.techobbyist.signuplogin W / IInputConnectionWrapper:   getTextAfterCursor on inactive InputConnection