java - 方法initLoader问题

Question

在类MainActivity，java中:

  public class MainActivity extends FragmentActivity implements 
  LoaderManager.LoaderCallbacks<Cursor> {

public void onClickBtnDispNames(View view) {
    getSupportLoaderManager().initLoader(1, null, this);
}
}

有一个错误:

The method initLoader(int, Bundle, LoaderManager.LoaderCallbacks<D>) in the type LoaderManager is    
 not applicable for the arguments (int, null, MainActivity)

Answer 1

确保从同一LoaderManager包中导入android.support.v4.*和相关类。

import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
...