自定义光标适配器没有显示任

Question

我有一个列表活动，每行有一个TextView和EditText字段。以前我使用的是simplecursoradapter，但是要解决从EditText获取值并在其他活动中使用的问题。除了回收移动用户输入我试图转移到自定义输入。我已经让它运行但是当它运行时它不会显示我的任何结果。此时它只是在底部显示我的页脚。

//自定义适配器

public class ItemsAdapter extends ArrayAdapter<Model> {
    private LayoutInflater mInflater;
    private Cursor cursor;

    public ItemsAdapter(Context context, int layout, Cursor cursor, String[] from,
            int[] to) {
        super(context, layout);
        this.cursor = cursor;
         mInflater = LayoutInflater.from(context);

    }

    static class ViewHolder {
        protected TextView text;
        protected EditText edittext;

    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        ViewHolder holder;
        if (convertView == null) {
            convertView = mInflater.inflate(R.layout.edit_row, null);


             holder = new ViewHolder();
            holder.text = (TextView) convertView.findViewById(R.id.textType);
            holder.edittext = (EditText) convertView.findViewById(R.id.editText);

            convertView.setTag(holder);

        } else {
            holder = (ViewHolder) convertView.getTag();

        }
        cursor.moveToPosition(position);
        int label_index = cursor.getColumnIndex("userword"); 
        String label = cursor.getString(label_index);


        holder.text.setText(label);




        return convertView;
    }
}

//我的列表活动

public class editview extends ListActivity {
    private dbadapter mydbhelper;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mydbhelper = new dbadapter(this);
        mydbhelper.open();


        View footer = getLayoutInflater().inflate(R.layout.footer_layout, null);
        ListView listView = getListView();
        listView.addFooterView(footer);
        showResults();
        }


    private void showResults (){
        Cursor cursor = mydbhelper.getUserWord();
        startManagingCursor(cursor);
        String[] from = new String[] {dbadapter.KEY_USERWORD};
         int[] to = new int[] {R.id.textType};
         ItemsAdapter adapter = new ItemsAdapter(this, R.layout.edit_row, cursor,
                        from, to);
            adapter.notifyDataSetChanged();
            this.setListAdapter(adapter);

    }
            //footer button
            public void onClick(View footer){
                    final MediaPlayer editClickSound = MediaPlayer.create(this, R.raw.button50);
                    editClickSound.start();

                }
        }

//我的光标位于dbadapter类

中

    // retrieves all the descriptions for the edittext fields
      public  Cursor getUserWord() 
        {
            return myDataBase.query(USER_WORD_TABLE, new String[] {
                    KEY_ID, 
                    KEY_CATEGORY,
                    KEY_SOURCE, KEY_TITLE, KEY_USERWORD, KEY_QUICK 
                    }, 
                    KEY_CATEGORY+ "=" + categories.categoryClick + " AND " + KEY_SOURCE+ "=" 
                    +source.sourceClick + " AND " + KEY_TITLE+ "=" + title.titleClick, 
                    null, null, null, KEY_ID);

        }

提供有关其工作原理的更多信息。用户将获得一系列Listviews，category-＆gt; source-＆gt;标题。然后使用EditText将它们带到此活动，我将在其中接受输入并在下一个活动中使用它们。我是自定义游标适配器的新手，因为我是Android的新手并且还在学习，所以我无法理解我所缺少的东西。