onItemClickListener how to have a fixed name for each item?

Question

I am trying to make a listView that has an editText and when you type something it filters all the contents to the the names with that contains the text the user typed and then you press it to show more information about this name. The filter works fine but the since in the onItemClickListener each case is defined by it's number ex:

   case 0:
     ....
     break;
 case 1:
    ....
      break;
    case 2:
    ....
 break; 

when the user types something and the names get filtered, for example case 45 will become case 0 and it will open the information of the case 0 instead of case 45, so how can I have a fixed name for them like when in the onClick method when you type the id of the button.

Thanks

My code:

    final EditText inputSearch = (EditText) view.findViewById(R.id.inputSearch);
    list = (GridView) view.findViewById(R.id.gv);
    final ArrayAdapter<String> dataAdapter=new ArrayAdapter<String>(getActivity().getBaseContext(),R.layout.gridview_design,R.id.name, heartlessNames);
    list.setAdapter(dataAdapter);

    inputSearch.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence s,int start,int before,int count){
              updateText();
        }
        @Override public void beforeTextChanged(CharSequence s,int start,int count,int after){
          updateText();
        }
        @Override public void afterTextChanged(Editable s){
          updateText();
        }
        private void updateText(){
            dataAdapter.getFilter().filter(inputSearch.getText().toString());

        }
    });

       list.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
                int position, long id) {

            switch(position){
             case 0:
                   sp.play(soundId, 1, 1, 0, 0, 1);
                startActivity(new Intent(getActivity().getBaseContext(), shadow.class));
                getActivity().overridePendingTransition(R.animator.push_left_in, R.animator.push_left_out);
                break;
              case 1:
                  sp.play(soundId, 1, 1, 0, 0, 1);
                startActivity(new Intent(getActivity().getBaseContext(), soldier_kh2fm.class));
                getActivity().overridePendingTransition(R.animator.push_left_in, R.animator.push_left_out);
                  break;

            }
        }
    });
    return view;
}
}

Answer 1

Say you have a ListView in your Activity, we will call it listView and it will likely be setup something like this

private ListView listView;
private MyListAdapter adapter;

public class MainActivity extends Activity{

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

         listView = (ListView) findViewById(android.R.id.list);
         ...
     }

     ...
}

At some point you will build your adapter and set it to your listView (listView.setAdapter(adapter);). Notice adapter and listView are class variables so they can be used throughout our entire class. Now your listView should be ready to go. You have told us, "The filter works fine", so I am going to assume at this point you just need to manage handling clicking on an item, that is done with

listView.setOnItemClickListener(new OnItemClickListener(){

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

        /* THIS IS WHAT YOU WANT TO DO TO GET AN ITEM FROM YOUR LIST */
        String data = dataAdapter.getItem(position);

        // do what you want with your data String
    }

});

Where MyDataObject is replaced with whatever the type is in your list that your adapter is pulling from. As you can see you use your adapter and the position you clicked on to actually get your data from that position. Your list itself will manage data positions, no need for you to do that.

EDIT

Based on your code, I would create a list object that has a reference to what you need, and still let your adapter manage everything.

public class ListItemObject{
    private String data;
    private Class clazz;
    private int[] soundSettings;

    public ListItemObject(String data, Class clazz, int[] soundSettings){
        this.data = data;
        this.clazz = clazz;
        this.soundSettings = soundSettings;
    }

    // getters and setters
}

Then change your ArrayAdapter to ArrayAdapter and in your getView method of your adapter do set your values, something like

textView.setText(getItem(position).getData());

This way when in onItemClickListener you can just do

int[] soundSettings = adapter.getItem(position).getSoundSettings();
sp.play(soundId, soundSettiings[0], soundSettings[1], soundSettings[2],
    soundSettings[3], soundSettings[4]);
startActivity(new Intent(getActivity(), adapter.getItem(position).getClazz()));
getActivity().overridePendingTransition(R.animator.push_left_in, R.animator.push_left_out);

The idea of an adapter/list view is to manage your data in an organized manner. When you try to take control over that you are just asking for trouble. You would have to sync your methods/data with your adapter which is very difficult. Give you adapter all of the data it may need to represent that position of data and then when you click on that position use the data you get. That is the whole point.

Answer 2

I suggest you use a CursorAdapter as the back end for your list. You can put filtering in directly using a FilterQueryProvider. There are some great examples out there, such as this one. Something like this is the key:

dataAdapter.setFilterQueryProvider(new FilterQueryProvider() {
     public Cursor runQuery(CharSequence constraint) {
         return dbHelper.fetchCountriesByName(constraint.toString());
     }
 });

  EditText myFilter = (EditText) findViewById(R.id.myFilter);
  myFilter.addTextChangedListener(new TextWatcher() {

   public void afterTextChanged(Editable s) {
   }

   public void beforeTextChanged(CharSequence s, int start,
     int count, int after) {
   }

   public void onTextChanged(CharSequence s, int start,
     int before, int count) {
    dataAdapter.getFilter().filter(s.toString());
   }
  });

Then your dbHelper will do the filtering based on the name, as desired via this syntax.