如何在多片段活动中处理onContextItemSelected？

public class MainActivity extends AppCompatActivity {

    private static final int MENU_ITEM_DELETE = 1;
    private static final int MENU_ITEM_EDIT = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 在活动中注册上下文菜单
        registerForContextMenu(findViewById(R.id.fragment_container));
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
        super.onCreateContextMenu(menu, v, menuInfo);

        // 加载菜单资源文件
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.context_menu, menu);

        // 添加菜单项
        menu.add(Menu.NONE, MENU_ITEM_DELETE, Menu.NONE, "删除");
        menu.add(Menu.NONE, MENU_ITEM_EDIT, Menu.NONE, "编辑");
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case MENU_ITEM_DELETE:
                // 执行删除操作
                deleteItem();
                return true;
            case MENU_ITEM_EDIT:
                // 执行编辑操作
                editItem();
                return true;
            default:
                return super.onContextItemSelected(item);
        }
    }

    private void deleteItem() {
        // 处理删除操作
    }

    private void editItem() {
        // 处理编辑操作
    }
}