如何调用startactivity或致电意图从列表视图中onitemclick事件的片段？ [英] How to call startactivity or call intent from onitemclick event of listview in fragment?

问题描述

我有了自己的布局片段。在布局，有一个ListView和我连接onitemclick监听器将启动/打开意图列表行被点击时。不幸的是，我总是得到这个错误：

从活动背景以外调用startActivity（）需要FLAG_ACTIVITY_NEW_TASK标志

但我并不preFER设置标志的活动。我无法打开SamplePage.class

 公共类FrontPageFragment扩展片段
{

    私人的ArrayList＆LT;排序＆gt; m_orders = NULL;
    私人OrderAdapter m_adapter;

    @覆盖
    公共查看onCreateView（LayoutInflater充气，容器的ViewGroup，
                             捆绑savedInstanceState）{

        查看fragmentView = inflater.inflate（R.layout.frontpage，集装箱，假）;

        m_orders =新的ArrayList＆LT;排序＆gt;（）;
        this.m_adapter =新OrderAdapter（this.getActivity（）getApplicationContext（），R.layout.name，m_orders）;

        查看eView的=（查看）fragmentView.findViewById（R.id.approvedOrders）;
        ListView控件的ListView =（ListView控件）eView.findViewById（R.id.listview）;

         listView.setOnItemClickListener（新OnItemClickListener（）{
            公共无效onItemClick（适配器视图＆LT;＆GT;母公司视图中查看，
                INT位置，长的id）{

                意向意图=新的意图（view.getContext（），SamplePage.class）;
                intent.putExtra（ID，1）;
                。view.getContext（）startActivity（意向）;

            }
         }）;

        //绑定数据
        listView.setAdapter（this.m_adapter）;


        返回fragmentView;

    }
 

解决方案

当我复制乌尔code，我得到了同样的错误。所以我改变一点点，和它的工作。检查：

 意向意图=新的意图（getActivity（）getBaseContext（），Sampleclass.class。）;

intent.putExtra（身份证，1）;

startActivity（意向）;
 

I have a fragment that has its own layout. In the layout, there is a listview and i attached onitemclick listener that will start/open an intent when the list row is clicked. Unfortunately, I always get this error :

Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag

But I do not prefer to set the flag activity. I could not open the 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;

    }

解决方案

When I copied ur code I got the same error. So I changed it a little bit, and it worked. Check this:

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

intent.putExtra("id", 1);

startActivity(intent);

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