LoaderManager多个装载机:如何得到正确的cursorloader多个、装载机、正确、LoaderManager

2023-09-05 05:25:15 作者:習慣菰獨

要我现在还不清楚如何得到正确的光标,如果你有多个装载机。比方说,你定义了两种不同的加载器:

To me it's not clear how to get the right cursor if you have multiple Loaders. Lets say you define two different Loader with:

getLoaderManager().initLoader(0,null,this);
getLoaderManager().initLoader(1,null,this);

然后在 onCreateLoader()你根据ID不同的事情:

then in onCreateLoader() you do different things depending on the id:

@Override
public Loader<Cursor> onCreateLoader(int id, Bundle arg1) {

    if (id==0){
               CursorLoader loader = new CursorLoader(getActivity(),
            MaterialContentProvider.CONTENT_URI,null,null,null,null);
    }else{
               CursorLoader loader = new CursorLoader(getActivity(),
            CustomerContentProvider.CONTENT_URI,null,null,null,null);
            };
    return loader;
} 

到目前为止好。但如何得到正确的光标 onLoadFinished(),因为你没有得到任何的ID,以确定正确的光标合适的CursorAdapter。

so far so good. But how to get the right cursor in onLoadFinished() because you don't get any id to identify the right Cursor for the right Cursoradapter.

@Override
public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {


    mycursoradapter1.swapCursor(cursor);
    if(isResumed()){
        setListShown(true);
    }else {
        setListShownNoAnimation(true);
    }



}
//and where to get the cursor for mycursoradapter2

还是我错了,这是错误的方式来获得一个片段,结果两个不同的CursorAdapter。

or am I wrong and this is the wrong way to get results for two different cursoradapter in one fragment.

推荐答案

Loader类有一个名为的的getId()。我希望这将返回你的加载器相关的标识。

The Loader class has a method called getId(). I would hope this returns the id you've associated with the loader.