从onItemClick开始在片段的Lis​​tView活动 [英] Start Activities from onItemClick of ListView in fragments

问题描述

所以，我有两个片段链接到布局，显示列表视图文件。该列表视图在XML定义，并具有一个字符串数组项。我想点击在ListView项目和开放的新的活动。有在另一个ListView和9 8项。在onItemClick code，我怎么创造意图，开始根据项目活动的点击？我将创建每件1类作为其自己的活动。如何通过这个code？

的onItemClick方法里面意图开始在班级活动

 类CommunityFragment扩展片段{    @覆盖
    公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{        查看查看= inflater.inflate（R.layout.community_fragment，集装箱，FALSE）;
        LV的ListView =（ListView控件）view.findViewById（R.id.communityListView）;
        lv.setOnItemClickListener（新OnItemClickListener（）{
            @覆盖
            公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1观，诠释ARG2，长ARG3）{
                // TODO自动生成方法存根            }
        }）;
        返回视图。
    }
}
类ResourcesFragment扩展片段{
    @覆盖
    公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{        查看查看= inflater.inflate（R.layout.resources_fragment，集装箱，FALSE）;
        LV的ListView =（ListView控件）view.findViewById（R.id.resourcesListView）;        lv.setOnItemClickListener（新OnItemClickListener（）{            @覆盖
            公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1观，诠释ARG2，长ARG3）{
                // TODO自动生成方法存根            }
        }）;
        返回视图。
    }
}
 

解决方案

请switch语句每个项目点击并打开活动如下相应：

  lv.setOnItemClickListener（新OnItemClickListener（）{        @覆盖
        公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1观，诠释ARG2，长ARG3）{
            // TODO自动生成方法存根
                     INT ITM = arg0.getItemAtPosition（ARG2）;
                开关（ITM）{
                情况下0：
                Toast.makeText（m_context，位置零，Toast.LENGTH_SHORT）.show（）;
                                 意向意图=新意图（getActivity（），FirstActivity.class）;
                startActivity（意向）;
                    打破;
                情况1：
                  意图int​​ent1 =新意图（getActivity（），SecondActivity.class）;
                   startActivity（intent1）;
                              打破;
                案例2：
                          // ..............................        }
    }）;
 

So I have two fragments linking to layout files which display ListViews. The ListViews are defined in the xml and have entries from a string array. I want to click on items in the ListView and open new activities. There are 8 items in one ListView and 9 in the other. In the onItemClick code, how do I create intents to start activities based on the item clicked? I will create 1 class per item as its own activity. How can I start the activities in the classes via intents inside the onItemClick methods of this code?

class CommunityFragment extends Fragment{

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

        View view = inflater.inflate(R.layout.community_fragment, container, false);
        ListView lv = (ListView) view.findViewById(R.id.communityListView);
        lv.setOnItemClickListener(new OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3){
                // TODO Auto-generated method stub

            }
        });
        return view;
    }
}
class ResourcesFragment extends Fragment{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){

        View view = inflater.inflate(R.layout.resources_fragment, container, false);
        ListView lv = (ListView) view.findViewById(R.id.resourcesListView);

        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                // TODO Auto-generated method stub

            }
        });
        return view;
    }
}

解决方案

Make switch statement for each items click and open activities accordingly as below:

   lv.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            // TODO Auto-generated method stub
                     int itm=arg0.getItemAtPosition(arg2);
                switch (itm) {
                case 0:
                Toast.makeText(m_context, "Position Zero", Toast.LENGTH_SHORT).show();
                                 Intent intent = new Intent(getActivity(), FirstActivity.class);
                startActivity(intent);
                    break;
                case 1:
                  Intent intent1 = new Intent(getActivity(), SecondActivity.class);
                   startActivity(intent1);
                              break;
                case 2:
                          //..............................

        }
    });

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