我正在尝试创建一个 OnItemClick 方法来从我的 ListView 启动另一个活动。创建方法后，我收到多个错误。错误消息是：
LoginList 类型的方法 onListItemClick(ListView, View, int, long) 必须重写或实现超类型方法
方法 onListItemClick(ListView, View, int, long) 未定义 FragmentActivity 类型
我曾尝试实施另一种方法（如下），但收到类似的错误。谁能指出我做错了什么。例子最有帮助
方法：public void onItemClick(AdapterView arg0, View arg1, int arg2, long arg3)
这是我的课：
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);
}
}