Android：BaseAdapter 怎么做？
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Android : BaseAdapter how to?
提问by Chrispix
Ok, I have been searching thick and thin, and I am having some issues implementing a BaseAdapter.
好的，我一直在搜索，但在实现 BaseAdapter 时遇到了一些问题。
I have been able to implement a Simple Cursor Adapter http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/List7.htmlas per the example above.
我已经能够按照上面的示例实现一个简单的光标适配器 http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/List7.html。
There is a pretty good BaseAdapter example here : List14 google example
这里有一个非常好的 BaseAdapter 示例：List14 google example
I am wanting to create my own List Adapter using BaseAdapter to show a listView, with multiple items from a Database. I know this can be done using the Simple Cursor Adapter, but I am looking to handle rows differently, so I want to be able to draw each row by overriding getView. The data would be pulled from a cursor.
我想使用 BaseAdapter 创建我自己的列表适配器来显示一个列表视图，其中包含来自数据库的多个项目。我知道这可以使用 Simple Cursor Adapter 来完成，但我希望以不同的方式处理行，因此我希望能够通过覆盖 getView 来绘制每一行。数据将从游标中拉出。
I know this code is ugly for getting to the cursor data, but assuming I have populated a cursor. What suggestions do you have on this if column 8 contains the image resource id. :
我知道这段代码对于获取游标数据来说很丑陋，但假设我已经填充了一个游标。如果第 8 列包含图像资源 ID，您对此有何建议。：
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
cursor.moveToPosition(position);
ImageView i = new ImageView(mContext);
i.setImageResource(cursor.getShort(8));
i.setAdjustViewBounds(true);
i.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
return i;
}
Do you have any good examples of a BaseAdapter being drawn using a cursor?
你有使用游标绘制 BaseAdapter 的好例子吗？
回答by Matt
Try calling notifyDataSetChanged()from a method inside the BaseAdapteritself.
尝试notifyDataSetChanged()从BaseAdapter自身内部的方法调用。
See the methods in List8 of the API Demosas an example.
以API Demo的List8中的方法为例。
