如何在 ListActivity 中获取 LoaderManager
我正在使用兼容性包来实现 API 级别 < 的 CursorLoader 11 根据 doc 和此 答案 和这个精彩的教程,我已经导入了支持包并实现了LoaderManager.LoaderCallbacks,但接下来我必须调用:
getSupportLoaderManager()
为此必须扩展 FragmentActivity,然后从 Activity Context 调用,但我已经扩展了 ListActivity,并且想要进行静态调用来获取LoaderManager,像这样:
FragmentActivity.getSupportLoaderManager()
显然,这是一种获取 LoaderManager < 11、医生是这么说的:
要管理片段和加载器,您必须使用 FragmentActivity.getSupportFragmentManager() 和 FragmentActivity.getSupportLoaderManager() 方法(而不是 getFragmentManager() 和 getLoaderManager() 方法)。
但它给出了这个编译时错误:
Cannot make a static call to a non-static method
FragmentActivity 的代码, getSupportLoaderManager() 在这里不是静态的,这解释了错误,但为什么文档是这样的显示静态调用...我现在很困惑...
请帮忙!
I am using compatibility package for implementing CursorLoader in API level < 11
As per the doc and this answer and this wonderful tutorial, I have imported the support packages and implemented the LoaderManager.LoaderCallbacks, but next I have to call:
getSupportLoaderManager()
and for that one has to extend FragmentActivity, and then call from Activity Context, but I have already extended ListActivity, and want to make a static call to get LoaderManager, like this:
FragmentActivity.getSupportLoaderManager()
Apparently, this is a way to get LoaderManager < 11, that's what the doc says:
To manage your fragments and loaders, you must use the methods FragmentActivity.getSupportFragmentManager() and FragmentActivity.getSupportLoaderManager() (instead of the getFragmentManager() and getLoaderManager() methods).
But it is giving this compile time error:
Cannot make a static call to a non-static method
Code for FragmentActivity, getSupportLoaderManager() is not static here, that explains the error, but why is the Doc showing a static call...i am confused now...
Please help!
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如果您扩展
FragmentActivity
,则只能使用 Android 兼容性库中的Loader
框架。考虑将ListActivity
转换为ListFragment
和FragmentActivity
。You can only use the
Loader
framework from the Android Compatibility Library if you extendFragmentActivity
. Consider converting yourListActivity
into aListFragment
and aFragmentActivity
.