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ListView 在我改变表格后没有工作。 Android
原标题:ListView not working after i changed its table. Android

我创建了一个列表视图, 以在屏幕上显示数据库的所有内容。 我使用的代码是这个

 private void fillData() {
// Get all of the notes from the database and create the item list
   Cursor c = datasource.getAllActs();
    startManagingCursor(c);
    String[] from = new String[] {DataBaseHelper.KEY_DATE,  
    DataBaseHelper.KEY_STEPS,DataBaseHelper.KEY_CALs };
    int[] to = { R.id.code, R.id.Days, R.id.BMI };
    SimpleCursorAdapter notes = new SimpleCursorAdapter (this, R.layout.notes_row, c,  from, to);
   setListAdapter(notes);               
 }

与下面的代码一起工作。

 private void fillData() {
            // Get all of the notes from the database and create the item list
            Cursor c = datasource.getAllGoals();
            startManagingCursor(c);
            String[] from = new String[] {DataBaseHelper.KEY_GOAL, DataBaseHelper.KEY_Current,DataBaseHelper.KEY_Target };
            int[] to = { R.id.code, R.id.Days, R.id.BMI };
            SimpleCursorAdapter notes = new SimpleCursorAdapter (this, R.layout.notes_row, c, from, to);
            setListAdapter(notes);              
     }

我只是想知道这个代码是否有问题 我可能失踪了,如果你需要的话,我有日志

最佳回答

我唯一能想到的是 您的新 < code> Cursor 没有名为 < code_ id 的列。 请确保光标,

Cursor c = datasource.getAllActs();

有一个名为 的列,因为 SproCursorAdapter 类需要它。

问题回答

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