android - 如何从 fragment 中的listview的onitemclick事件调用startactivity或调用intent？

Question

我有一个 fragment ，它有自己的布局。在布局中，有一个 ListView ，我附加了 onitemclick 监听器，它将在单击列表行时启动/打开一个 Intent 。不幸的是，我总是收到这个错误:

从 Activity 上下文外部调用 startActivity() 需要 FLAG_ACTIVITY_NEW_TASK 标志

但我不喜欢设置标志 Activity 。我无法打开 SamplePage.class

public class FrontPageFragment extends Fragment
{

    private ArrayList<Order> m_orders = null;
    private OrderAdapter m_adapter;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View fragmentView=inflater.inflate(R.layout.frontpage, container, false);

        m_orders = new ArrayList<Order>();
        this.m_adapter = new OrderAdapter(this.getActivity().getApplicationContext(), R.layout.name, m_orders);

        View eView=(View)fragmentView.findViewById(R.id.approvedOrders);
        ListView listView=(ListView)eView.findViewById(R.id.listview);

         listView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {

                Intent intent = new Intent(view.getContext(), SamplePage.class);
                intent.putExtra("id", "1");
                view.getContext().startActivity(intent);

            }
         });

        //bind data
        listView.setAdapter(this.m_adapter);


        return fragmentView;

    }

Answer 1

当我复制你的代码时，我得到了同样的错误。所以我稍微改变了一下，它起作用了。检查这个:

Intent intent = new Intent(getActivity().getBaseContext(), Sampleclass.class);

intent.putExtra("id", 1);

startActivity(intent);