Question

在我的应用程序中，我需要根据单击的列表从一个活动移动到另一个活动。在每个列表视图中将有三个textview，即：Emp_id，Emp_name，Emp_address，因此每当我点击应该移动到相应Emp_id的下一个活动的特定列表时。所以在这里我想抓住Emp_id，这是我无法做到的。我已经尝试了很多，但只获得了第一个Emp_id而不是我点击的列表。

CODE：

ArrayList<HashMap<String, String>> mylist2 = new ArrayList<HashMap<String, String>>();

        try{
            JSONObject jObj = new JSONObject(Mydetail);
            JSONArray data = jObj.getJSONArray("mydata");

            for(int i=0;i<data.length();i++){                       
                HashMap<String, String> map = new HashMap<String, String>();    
                JSONObject e = data.getJSONObject(i);

                map.put("id", String.valueOf(i));
                map.put("Eid", "" + e.getString("E_id"));
                map.put("Ename", "" + e.getString("E_name"));
                map.put("Eaddress", "" + e.getString("E_address"));
                mylist2.add(map);
            }       
        }catch(JSONException e)        {
             Log.e("log_tag", "Error parsing data "+e.toString());
        }

         ListAdapter adapter = new SimpleAdapter(this, mylist2 , R.layout.datalist,
                                  new String[] { "Eid", "Ename", "Eaddress" }, 
                                  new int[] {  R.id.TextView1,R.id.TextView2e,R.id.TextView3 });
                                  setListAdapter(adapter);


        final ListView lv = getListView();
        lv.setTextFilterEnabled(true);  
        lv.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {              
                @SuppressWarnings("unchecked")
                HashMap<String, String> o = (HashMap<String, String>) lv.getItemAtPosition(position);                   
                //String val = o.get("id");

                Pnm = (TextView)findViewById(R.id.TextView1);
                 String str = ((TextView)Pnm).getText().toString();


                Toast.makeText(projects.this, str,Toast.LENGTH_LONG).show();

                Intent newActivitySecond = new Intent(projects.this, modules.class);     
                projects.this.startActivity(newActivitySecond);


            }
        });

由于

Answer 1

试试这样：

 ListView lv_ArchivePartylist;

    lv_ArchivePartylist = (ListView)findViewById(R.id.archive_ListView01);
            lv_ArchivePartylist.setOnItemClickListener(new OnItemClickListener()
                {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
                    // TODO Auto-generated method stub
                    String message = view.findViewById(R.id.txt_box1).getText().toString;
                    Toast.makeText(Activityname.this, message, Toast.LENGTH_SHORT).show();

    }
    }

    });

Answer 2

试试这个

lv.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {              
            @SuppressWarnings("unchecked")
            HashMap<String, String> o = (HashMap<String, String>) mylist2.get(position);                   

             String Emp_id = o.get("Eid");
             //use this Emp_id


        }
    });

Answer 3

您必须将set onclicklistener用于ListView中的所有元素。我创建了一个列表视图。将适配器设置为listview。我的适配器是负责显示listview的每个元素。所以在getView（）里面我将onclicklistener分配给我想要获得点击事件的所有元素

实施例

public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;
        ViewHolder holder;
        if(convertView==null){
            vi = inflater.inflate(R.layout.item, null);
            holder=new ViewHolder();
            holder.text=(TextView)vi.findViewById(R.id.text);;
            holder.image=(ImageView)vi.findViewById(R.id.image);
            vi.setTag(holder);
        }
        else
            holder=(ViewHolder)vi.getTag();

        holder.text.setText("item "+position);
        holder.image.setTag(data.get(position));
        holder.image.setOnClickListener(this);
        holder.text.setOnClickListener(this);
        imageLoader.DisplayImage(data.get(position), activity, holder.image);
        return vi;
    }

    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        System.out.println("...clicked view is...."+arg0);
    }

如何在Android中的ListView中获取特定textView的值？

3 个答案:

实施例