Listview setOnItemClickListener - Not working for custom listview but working into simple listview

I have problem with the get the listview item when click listitem. I Got listview item for the simple listview(Arrayadapter), but I have face problem for the custom listview.

I am using

listview.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> myAdapter, View myView, int pos, long mylng) {

  //String  selectedFromList = (String) listview.getItemAtPosition(pos);
   String  selectedFromList = (String) adapter.getItem(pos);

    System.out.println("selected value >> >> >> >> >> >>"+selectedFromList);

    SelectedAnswer.setAnswer(selectedFromList);

              }

          });

Into Logcat give me the null value :

I/System.out( 1238): selected value >> >> >> >> >> >>null

main.class

 protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.quiz_questions);

        listview = (ListView) findViewById(R.id.questions_list);

        GoToNextQuestion();
  }

private void GoToNextQuestion() {
    // TODO Auto-generated method stub

     currentGame = ((Quizapplication)getApplication()).getCurrentGame();
    currentQ = currentGame.getNextQuestion();

       setQuestions();

    listview.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> myAdapter, View myView, int pos, long mylng) {

  //String  selectedFromList = (String) listview.getItemAtPosition(pos);
   String  selectedFromList = (String) adapter.getItem(pos);

    System.out.println("selected value >> >> >> >> >> >>"+selectedFromList);

    SelectedAnswer.setAnswer(selectedFromList);

              }

          });


}

 private void setQuestions() {


    // set the available options
    List<String> answers = currentQ.getQuestionOptions();
    System.out.println("value of the options >>>>>>>>>>>>>:"+answers); 


     //ArrayAdapter< String> myadapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_single_choice ,answers);

    //ArrayAdapter< String> adapter = new ArrayAdapter<String>(this, R.layout.quiz_questions_listitem, answers);        

             // working for the simple adapter

      adapter = new ListviewAdapter(this,answers);

     listview.setAdapter(adapter);
     //listview.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
}


 }

EDIT:

 public class ListviewAdapter extends BaseAdapter{

public List<String> Questions;  

public Activity context;  
public LayoutInflater inflater;


public ListviewAdapter(Activity context,List<String> answers) {  
    super();  

    this.context = context;  
    this.Questions = answers;  

    this.inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  
}  

@Override  
public int getCount() {  
    // TODO Auto-generated method stub  
    return Questions.size();  
}  

@Override  
public Object getItem(int position) {  
    // TODO Auto-generated method stub  
    return null;  
}  

@Override  
public long getItemId(int position) {  
    // TODO Auto-generated method stub  
    return 0;  
}  

public static class ViewHolder  
{  

    TextView txtquestion;  
}  

@Override  
public View getView(int position, View convertView, ViewGroup parent) {  
    // TODO Auto-generated method stub  

    ViewHolder holder;  
    if(convertView==null)  
    {  
        holder = new ViewHolder();  
        convertView = inflater.inflate(R.layout.quiz_questions_listitem, null);  


        holder.txtquestion = (TextView) convertView.findViewById(R.id.textView_option);  

        convertView.setTag(holder);  

      /*  convertView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                 System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>"+v.toString());
                notifyDataSetChanged();

                 SelectedAnswer.setAnswer(v.toString());
            }
        });*/
    }  
    else  
        holder=(ViewHolder)convertView.getTag();  

    holder.txtquestion.setText(Questions.get(position));  

    return convertView;  
}   

}

Answers


You probably return null from the getItem() method of your custom adapter, ListviewAdapter(you should add the code for the adapter). Also, there is no need to set the listener on the ListView again.

Modify your getItem() method like this:

@Override  
public Object getItem(int position) {     
    return Questions.get(position);  
}  

Need Your Help

How to Change Database on a Entity Framework Connection

asp.net-mvc-2 .net-4.0 c#-4.0 entity-framework-4

I got a ADO.NET Entity Data Model that I want to use on several databases (on the same server), how would you solve it?

If statement is not being registered prior to execution jQuery

jquery

I was unable to find anything relating specifically to this issue. I have a button to check the answer of the multiple choice question to check it is correct and if so it makes the next button acti...

About UNIX Resources Network

Original, collect and organize Developers related documents, information and materials, contains jQuery, Html, CSS, MySQL, .NET, ASP.NET, SQL, objective-c, iPhone, Ruby on Rails, C, SQL Server, Ruby, Arrays, Regex, ASP.NET MVC, WPF, XML, Ajax, DataBase, and so on.