Database 光标适配器和 sqlite 示例

非常简单的例子.

这里有一个非常简单但非常有效的例子.一旦你有了基本的东西，你就可以很容易地在它的基础上建立起来.

将Cursor Adapter与SQLite一起使用有两个主要部分:

1. 从数据库中创建适当的Cursor.

2. 创建一个定制的Cursor Adapter，它从数据库中获取Cursor个数据，并将其与要表示数据的View配对.

1.从数据库创建正确的游标.

在您的活动中:

SQLiteOpenHelper sqLiteOpenHelper = new SQLiteOpenHelper( 
        context, DATABASE_NAME, null, DATABASE_VERSION);

SQLiteDatabase sqLiteDatabase = sqLiteOpenHelper.getReadableDatabase();

String query = "SELECT * FROM clients ORDER BY company_name ASC"; // No trailing ';'

Cursor cursor = sqLiteDatabase.rawQuery(query, null); 

ClientCursorAdapter adapter = new ClientCursorAdapter(
        this, R.layout.clients_listview_row, cursor, 0 );

this.setListAdapter(adapter);

2.创建自定义光标适配器.

Note: Extending from 100 assumes you use XML to create your views.

public class ClientCursorAdapter extends ResourceCursorAdapter {

    public ClientCursorAdapter(Context context, int layout, Cursor cursor, int flags) {
        super(context, layout, cursor, flags);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        TextView name = (TextView) view.findViewById(R.id.name);
        name.setText(cursor.getString(cursor.getColumnIndex("name")));

        TextView phone = (TextView) view.findViewById(R.id.phone);
        phone.setText(cursor.getString(cursor.getColumnIndex("phone")));
    }
}