如何根据用户单击操作更改自定义ListView文本

Question

我创建了一个包含CheckBox和Text小部件的自定义ListView。并使用SimpleCursorAdapter将其绑定到数据库记录。我希望在用户选中CheckBox时实现它，状态Text将更改为“Finished”。如果用户未选中，状态将恢复为“待处理”。

public class SpecialAdapter extends SimpleCursorAdapter {
    public ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();

    private int color_pending = 0xFF666666;
    private int color_finished = 0xFFCCCCCC;

    private String STATUS_PENDING, STATUS_FINISHED;

    private NotesDbAdapter mDbHelper;
    //private Context context;

    public SpecialAdapter(Context context, int resource, Cursor items, String[] from, int[] to) {
        super(context, resource, items, from, to);
        //this.context = context;
        mDbHelper = new NotesDbAdapter(context);

        STATUS_PENDING = context.getString(R.string.note_status_pending);
        STATUS_FINISHED = context.getString(R.string.note_status_finished);

        for (int i = 0; i < this.getCount(); i++) {
            itemChecked.add(i, false); // initializes all items value with false
        }
    }

    private void setTextColorPending(TextView title, TextView content, TextView status, TextView dateTime, CheckBox cBox) {
        title.setTextColor(color_pending);
        content.setTextColor(color_pending);
        status.setTextColor(color_pending);
        dateTime.setTextColor(color_pending);
    }

    private void setTextColorFinished(TextView title, TextView content, TextView status, TextView dateTime, CheckBox cBox) {
        title.setTextColor(color_finished);
        content.setTextColor(color_finished);
        status.setTextColor(color_finished);
        dateTime.setTextColor(color_finished);
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View view = super.getView(position, convertView, parent);
        final TextView title = (TextView)view.findViewById(R.id.lTitle);
        final TextView content = (TextView)view.findViewById(R.id.lContent);
        final TextView status = (TextView)view.findViewById(R.id.lStatus);
        final TextView dateTime = (TextView)view.findViewById(R.id.lDate);
        final CheckBox cBox = (CheckBox)view.findViewById(R.id.list_checkbox);

        final Cursor c = getCursor();
        c.moveToPosition(position);
        int col = c.getColumnIndex(NotesDbAdapter.COL_STATUS);
        final boolean isPending = c.getInt(col) == NotesDbAdapter.STATUS_PENDING;
        if (isPending) {
            setTextColorPending(title, content, status, dateTime, cBox);
            cBox.setChecked(false);
        }
        else {
            setTextColorFinished(title, content, status, dateTime, cBox);
            cBox.setChecked(true);
        }

        cBox.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                mDbHelper.open();
                CheckBox cb = (CheckBox)v.findViewById(R.id.list_checkbox);
                if (cb.isChecked()) {
                    itemChecked.set(position, true);
                    setTextColorFinished(title, content, status, dateTime, cBox);
                    int newStatus = NotesDbAdapter.STATUS_FINISHED;
                    mDbHelper.updateStatus(position, newStatus);
                } else if (!cb.isChecked()) {
                    itemChecked.set(position, false);
                    setTextColorPending(title, content, status, dateTime, cBox);
                    int newStatus = NotesDbAdapter.STATUS_PENDING;
                    mDbHelper.updateStatus(position, newStatus);
                }
                cBox.setChecked(itemChecked.get(position));
                c.requery();
                mDbHelper.close();
            }
        });

        return view;
    }

    @Override
    public void setViewText(TextView v, String text) {
        if (v.getId() == R.id.lStatus) {
            text = NotesDbAdapter.STATUS_PENDING == Integer.parseInt(text) ? STATUS_PENDING : STATUS_FINISHED;
        }

        v.setText(text);
    }
} 

这是类SpecialAdapter代码，它从SimpleCursorAdapter扩展而来。在覆盖函数getView - ＆gt; onClick函数，我更新了数据库上下文，然后调用c.requery（）。但它没有按预期工作。

on MainActivity（DroidNotesActivity）代码：

public void listAll() {
    cursor = mDbHelper.listAll();

    String[] from = new String[] {
            NotesDbAdapter.COL_ID,
            NotesDbAdapter.COL_TITLE,
            NotesDbAdapter.COL_MESSAGE,
            NotesDbAdapter.COL_DATE,
            NotesDbAdapter.COL_STATUS};
    int[] to = new int[] {R.id.hiddenId, R.id.lTitle, R.id.lContent, R.id.lDate, R.id.lStatus};

    SpecialAdapter notes = new SpecialAdapter(this, R.layout.note_row, cursor, from, to);
    listView.setAdapter(notes);

    int numNotes = Integer.parseInt(mDbHelper.count());
    if(numNotes == 1) {
        tNumNotes.setText(numNotes + " " + getApplicationContext().getString(R.string.note_found));
    } else if (numNotes > 0) {
        tNumNotes.setText(numNotes + " " + getApplicationContext().getString(R.string.notes_found));
    } else {
        tNumNotes.setText(getApplicationContext().getString(R.string.no_note_found));
    }
}

有没有人可以帮我弄清楚它显示错误的原因。感谢