关于android：覆盖或实现超类型方法[错误]

override or implement a supertype method [ERROR]

我正在尝试创建OniteClick方法以从我的ListView启动另一个活动。创建方法后，我将收到多个错误。错误消息为：

loginlist类型的方法onlistitemclick(listview，view，int，long)必须重写或实现父类型方法

对于类型FragmentActivity，方法OnListItemClick(listView，view，int，long)未定义。

我尝试过实现另一个方法(如下)，但收到了类似的错误。我可以让任何人指出我做错了什么。例子帮助最大

方法：public void oniteclick(adapterview arg0，view arg1，int arg2，long arg3)

这是我的课：

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public class LoginList extends FragmentActivity implements OnClickListener, AdapterView.OnItemClickListener, LoaderManager.LoaderCallbacks<Cursor> {

private ListView loginList;
private Button webLogin;
private SimpleCursorAdapter adapter;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login_listview);

loginList = (ListView)findViewById(R.id.loginlist);
loginList.setOnItemClickListener(this);

webLogin = (Button)findViewById(R.id.button3);
webLogin.setOnClickListener(this);

//Specify fileds to display in the list
String[] from = new String[] { ListProvider.COLUMN_NAME_SITE };

//Bind fields to listview
int[] to = new int[] {R.id.nameView };

// Create CursorAdapter and set it to display
adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, null, from, to);

loginList.setAdapter(adapter);

getSupportLoaderManager().initLoader(0, null, this);
}

@Override
public void onListItemClick (ListView l, View v, int position, long id) { // 1.The method onListItemClick(ListView, View, int, long) of type LoginList must override or implement a supertype method

super.onListItemClick (l, v, position, id); //2. The method onListItemClick(ListView, View, int, long) is undefined for the type FragmentActivity

startActivity(new Intent(this, UpdateDeleteLoginList.class)
.putExtra(ListProvider.COLUMN_ROWID, id));
}

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent webLoginIntent = new Intent (this, LoginPlusActivity.class);
startActivity(webLoginIntent);
}

@Override
public Loader<Cursor> onCreateLoader(int ignored, final Bundle args) {
return new CursorLoader(this, ListProvider.CONTENT_URI, null, null, null, null);
}

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
adapter.swapCursor(cursor);
}

@Override
public void onLoaderReset (Loader<Cursor> loader) {
adapter.swapCursor(null);

}

}