LoaderManager多个装载机：如何得到正确的cursorloader [英] LoaderManager with multiple loaders: how to get the right cursorloader

问题描述

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.

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