android.widget.ListView是不是可以通过这个SimpleCursorAdapter界限视图 [英] android.widget.ListView is not a view that can be bounds by this SimpleCursorAdapter

问题描述

我试着去得到BBDD一些数据用这种方法

Im trying to get some data from bbdd with this method

/**********************************************************************
 * * Obten todos los nombres
 * 
 */

public Cursor getNombres(){


       Cursor respuesta = db.rawQuery("select "+TABLE_ROW_ID+","+CNOMBRE+" from "+TABLE_NAME, null);

       return respuesta;
}

在这个类

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);   
     //Creamos la instancia de DataBaseHelper, un cursor y aplicamos el metodo getNombres al cursor.
     ayudabbdd = new DataBaseHelper(this);
     Cursor nombresC;     
     nombresC = (Cursor) ayudabbdd.getNombres();  
     startManagingCursor(nombresC);

     //Mientras el cursor no este vacio rellenamos la lista con el adaptador, que nos sirve para conectar unos datos con el listview.
     if(nombresC!=null){
     ListAdapter adapter = new SimpleCursorAdapter(this, R.layout.listatab, nombresC, new String[] { "nombre" }, new int[] { R.id.lista });
     this.setListAdapter(adapter);
     this.getListView().setTextFilterEnabled(true);  
     }



     }

但登录猫返回我，

But log cat return me that

android.widget.ListView is not a  view that can be bounds by this SimpleCursorAdapter 

但是，在一些教程这是从一个BBDD阵列的方式，它们不具有问题

But in some tutorials this is the way to get an array from a bbdd and they don't have problem

推荐答案

如果你读<一个商务部href=\"http://developer.android.com/reference/android/widget/SimpleCursorAdapter.html#SimpleCursorAdapter%28android.content.Context,%20int,%20android.database.Cursor,%20java.lang.String%5B%5D,%20int%5B%5D%29\"相对=nofollow> SimpleCursorAdapter ，构造，它的方式是去precated，得到作为第五个参数TextViews的ID，从文档：

If you read the doc for SimpleCursorAdapter, the constructor, which by the way is deprecated, gets as 5th parameter the ids of TextViews, from the doc:

to->    The views that should display column in the "from" parameter. 
These should all be TextViews. The first N views in this list are 
given the values of the first N columns in the from parameter. 
Can be null if the cursor is not available yet.

相反，你给LISTA的ID，这是一个ListView。尝试使用此选项可以更改：

Instead you are giving the id of lista, which is a ListView. Try to change using this:

int[] to = new int[] { android.R.layout.simple_list_item_1 };
...
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.listatab, nombresC, new String[] { "nombre" }, to);

恩另外，如果你的活动扩展了ListActivity，在你的XML ListView控件必须具有此ID：

En plus, if your activity extends ListActivity, the ListView in your xml must have this id:

android:id="@android:id/android:list"

看看这个例如。

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