Android onItemClick事件不響應

Question

我是android編程的新手。在我的程序onItemClick事件沒有響應。我通過JSON加載數據。當我從xml佈局中刪除單選按鈕代碼正常工作。

public class Taketest extends ListActivity`` 
    { 

     private ProgressDialog pDialog; 
     String question,ans1,ans2,ans3,ans4,ans5; 

     ArrayList<HashMap<String, String>> productsList; 

     @Override 
     public void onCreate(Bundle savedInstanceState) 
     { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.main); 

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

      new LoadAllProducts().execute(); 


      ListView lv = getListView(); 


      list.setOnItemClickListener(new OnItemClickListener() 

      { @Override 


       public void onItemClick(AdapterView<?> parent, View view,int position, long id) 
       { 


        String selected = ((TextView) view.findViewById(R.id.textView2)).getText().toString(); 


       } 
      }); 



     } 




     class LoadAllProducts extends AsyncTask<String, String, String> { 

      /** 
      * Before starting background thread Show Progress Dialog 
      * */ 
      @Override 
      protected void onPreExecute() { 
       super.onPreExecute(); 
       pDialog = new ProgressDialog(Taketest.this); 
       pDialog.setMessage("Loading Questions... Please wait..."); 
       pDialog.setIndeterminate(false); 
       pDialog.setCancelable(false); 
       pDialog.show(); 
      } 

      /** 
      * getting All products from url 
      * */ 
      protected String doInBackground(String... args) { 

       List<NameValuePair> params = new ArrayList<NameValuePair>(); 


       try { 
        int success = 1;// or 0 

        if (success == 1) { 

         products = json.getJSONArray(TAG);// load product through json 

         for (int i = 0; i < products.length(); i++) 
         { 
          JSONObject c = products.getJSONObject(i); 

          String id = c.getString("id"); 
          question = c.getString("question"); 
          ans1 = c.getString("op1"); 
          ans2 = c.getString("op2"); 
          ans3 = c.getString("op3"); 
          ans4 = c.getString("op4"); 
          ans5 = c.getString("op5"); 



          // creating new HashMap 
          HashMap<String, String> map = new HashMap<String, String>(); 

          // adding each child node to HashMap key => value 
          map.put("id", id); 
          map.put("ques", question); 
          map.put("a",ans1); 
          map.put("b",ans2); 
          map.put("c",ans3); 
          map.put("d",ans4); 
          map.put("e",ans5); 


          // adding HashList to ArrayList 
          productsList.add(map); 
         } 
        } 
        else { 

         Intent i = new Intent(getApplicationContext(), 
           Signup.class); 

         i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
         startActivity(i); 
        } 
       } catch (JSONException e) { 
        e.printStackTrace(); 
       } 

       return null; 
      } 


      protected void onPostExecute(String file_url) 
      { 
       // dismiss the dialog after getting all products 
       pDialog.dismiss(); 
       // updating UI from Background Thread 
       runOnUiThread(new Runnable() { 
        public void run() 
        { 

         ListAdapter adapter = 
           new SimpleAdapter(Taketest.this, productsList, R.layout.list_item, new String[]{"id", "ques","a","b","c","d","e"}, 
             new int[]{R.id.pid, R.id.name, R.id.rb1, R.id.rb2, R.id.rb3, R.id.rb4, R.id.rb5}); 
         // updating listview 
         setListAdapter(adapter); 
        } 
       }); 



      } 

     } 
    } 

和我的XML是

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical" > 

    <TextView 
     android:id="@+id/pid" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:visibility="gone" /> 


    <TextView 
     android:id="@+id/name" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:paddingTop="6dip" 
     android:paddingLeft="6dip" 
     android:textSize="17dip" 
     android:textStyle="bold" /> 
    <RadioGroup 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:weightSum="1" 
     android:id="@+id/rg"> 
    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/rb1" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/rb2" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/rb3" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/rb4" 
     android:checked="false" /> 

    <RadioButton 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/rb5" 
     android:checked="false" /> 

    </RadioGroup> 

</LinearLayout> 

Answer 1

如果你對你的adatper類，這是用於填充的ListView數據比你可以使用擴展BaseAdapter： -

public View getView(int i, View convertView, ViewGroup viewGroup) { 

     convertView.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       //Data 
      } 
     }); 
}