Listview列表未通过定制适配器，数据库显示

Question

我一直在关注一本书的教程，我有一个列表，该列表将通过游标填充数据库数据。尽管列表没有显示任何内容，但是我已经做了所有这本书的全部讲完的事情，并且查看了无数相同主题的问题。

TimeTracker

public class TimeTracker extends AppCompatActivity {
TimeTrackerAdapter timeTrackerAdapter;
TimeTrackerDatabaseHelper databaseHelper;
ListView listView;
public static final int TIME_ENTRY_REQUEST_CODE = 1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.time_tracker_activity);

    //Instantiating your custom open helper will cause the database to be created.
    databaseHelper = new TimeTrackerDatabaseHelper(this);

    listView = findViewById(R.id.times_list);
    timeTrackerAdapter = new TimeTrackerAdapter(this, databaseHelper.getAllTimeRecordsList());
    listView.setAdapter(timeTrackerAdapter);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    MenuInflater menuInflater = getMenuInflater();
    menuInflater.inflate(R.menu.time_list_menu, menu);
    return true;
}


@Override
public boolean onOptionsItemSelected(MenuItem menu) {
    if (menu.getItemId() == R.id.add_time_menu_item) {
        Intent intent = new Intent(this, AddTimeActivity.class);
        //startActivity(intent);
        startActivityForResult(intent, TIME_ENTRY_REQUEST_CODE);
        return true;
    }
    return super.onOptionsItemSelected(menu);
}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == TIME_ENTRY_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {

            String notes = data.getStringExtra("notes");
            String time = data.getStringExtra("time");
            databaseHelper.saveTimeRecord(time, notes);

            Cursor cursor = databaseHelper.getAllTimeRecordsList();
            int count = 0;
            if (cursor.moveToFirst()) {
                do {
                    String time01 = cursor.getString(1);
                    String notes01 = cursor.getString(2);
                    Log.d("RESULT","1: Database Info: POS: " + count + ", Time: " + time01 + ", Note: " + notes01);
                    count++;
                } while (cursor.moveToNext());
            }
            if (!cursor.isClosed()) {
                cursor.close();
            }

            timeTrackerAdapter.changeCursor(cursor);
            //listView = (ListView) findViewById(R.id.times_list);
            listView.setAdapter( timeTrackerAdapter);
            // timeTrackerAdapter.addTimeRecord( time, notes);
            timeTrackerAdapter.notifyDataSetChanged();
            Log.d("RESULT","1: End of method: onActivityResult, Time: " + time + ", Note: " + notes);
        }
    }
}

/** @Override
protected void onRestart() {

    super.onRestart();
    databaseHelper = new TimeTrackerDatabaseHelper(this);
    Cursor cursor = databaseHelper.getAllTimeRecordsList();
    listView = findViewById(R.id.times_list);
    timeTrackerAdapter = (TimeTrackerAdapter) listView.getAdapter();
    timeTrackerAdapter.changeCursor(cursor);
    timeTrackerAdapter.notifyDataSetChanged();
}*/
}

TimeTrackerAdapter

public class TimeTrackerAdapter extends CursorAdapter {

private ArrayList<TimeRecord> times = new ArrayList<TimeRecord>();
TimeTrackerDatabaseHelper databaseHelper;

public TimeTrackerAdapter(Context context, Cursor cursor) {
    super(context, cursor);
   //Cursor cursor = databaseHelper.getAllTimeRecordsList();
    /**if (cursor.moveToFirst()) {
        do {
            String time = cursor.getString(1);
            String notes = cursor.getString(2);


            addTimeRecord(time, notes);

        } while (cursor.moveToNext());
    }
    if (!cursor.isClosed()) {
        cursor.close();
    }**/
    Log.d("RESULT","5: End of method: TimeTrackerAdapter: TimeTrackerAdapter");
}

public void bindView(View view, Context context, Cursor cursor) {
    TextView nameTextView = (TextView) view.findViewById(R.id.time_view);
    nameTextView.setText(cursor.getString(cursor.getColumnIndex("time")));
    TextView valueTextView = (TextView) view.findViewById(R.id.notes_view);
    valueTextView.setText(cursor.getString(cursor.getColumnIndex("notes")));
    Log.d("RESULT","4: End of method: TimeTrackerAdapter: bindView");
}

public View newView(Context context, Cursor cursor, ViewGroup parent) {
    LayoutInflater inflater = LayoutInflater.from(parent.getContext());
    View view = inflater.inflate(R.layout.time_list_item, parent, false);
    Log.d("RESULT","3: End of method: TimeTrackerAdapter: newView");
    return view;
}

@Override
public int getCount() {
    return times.size();
}

@Override
public Object getItem(int position) {
    return getItem(position);
}

@Override
public long getItemId(int position) {
    return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
        convertView = inflater.inflate(R.layout.time_list_item, parent, false);
    }

    TimeRecord time = times.get(position);
    TextView timeTextView = (TextView) convertView.findViewById(R.id.time_view);
    timeTextView.setText(time.getTime());

    TextView notesTextView = (TextView) convertView.findViewById(R.id.notes_view);
    notesTextView.setText(time.getNotes());
    Log.d("RESULT","2: End of method: TimeTrackerAdapter: getView");
    return convertView;
}

public void addTimeRecord(String time, String notes) {

    times.add(new TimeRecord(time, notes));
}
}