Fen Dev's questions

I have a ListViewwith a CustomArrayAdapterwith checkbox, inside the Onclickdel checkboxin which CustomArrayAdapterI want to modify the text of a TextViewdel Fragment, I have tried this but I can't, it doesn't modify the text in the Fragment:

 public class CustomArrayAdapter extends ArrayAdapter<Row> implements View.OnClickListener{

    private LayoutInflater layoutInflater;
    TextView crec;
private Context mcontext;

    public CustomArrayAdapter(Context context, List < Row > objects)
    {
        super(context, 0, objects);
        layoutInflater = LayoutInflater.from(context);
        this.mcontext = context;

    }

    @Override
    public View getView ( int position, View convertView, ViewGroup parent)
    {
        // holder pattern
        Holder holder = null;
        if (convertView == null) {
            holder = new Holder();


            convertView = layoutInflater.inflate(R.layout.listadapter_multiple, null);
            View convertView2 = layoutInflater.inflate(R.layout.fragment_recomendacion, null);

            holder.setTextViewTitle((TextView) convertView.findViewById(R.id.textViewTitle));
            holder.setTextViewSubtitle((TextView) convertView.findViewById(R.id.textViewSubtitle));
            holder.setCheckBox((CheckBox) convertView
                    .findViewById(R.id.checkBox));
            holder.helloTxt= (TextView) convertView2.findViewById(R.id.crec);


            convertView.setTag(holder);


        } else {
            holder = (Holder) convertView.getTag();
        }

        final Row row = getItem(position);
        holder.getTextViewTitle().setText(row.getTitle());
        holder.getTextViewSubtitle().setText(row.getSubtitle());
        holder.getCheckBox().setTag(position);
        holder.getCheckBox().setChecked(row.isChecked());
        holder.getCheckBox().setOnClickListener(this);




        return convertView;
    }


@Override
public void onClick(View v) {
    Holder holder = new Holder();

    CheckBox checkBox = (CheckBox) v;
    int position = (Integer) v.getTag();
    final Row row = getItem(position);

    if(checkBox.isChecked()) {
       holder.helloTxt.setText("eltexto");
        notifyDataSetChanged();


    }

}

My Holder :

  static class Holder{

    TextView textViewTitle;
    TextView textViewSubtitle;
    CheckBox checkBox;
    public TextView helloTxt;

    public TextView getTextViewTitle()
    {
        return textViewTitle;
    }

    public void setTextViewTitle(TextView textViewTitle)
    {
        this.textViewTitle = textViewTitle;
    }
    public TextView getTextViewSubtitle()
    {
        return textViewSubtitle;
    }

    public void setTextViewSubtitle(TextView textViewSubtitle)
    {
        this.textViewSubtitle = textViewSubtitle;
    }
    public CheckBox getCheckBox()
    {
        return checkBox;
    }
    public void setCheckBox(CheckBox checkBox)
    {
        this.checkBox = checkBox;
    }

}

The TextView is declared in the Fragment , it is a normal TextView:

public class Recomendacion extends Fragment {
   ...
   TextView crec;
   //codigo
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
       ...
       crec = (TextView) view.findViewById(R.id.crec);
       //codigo

Hi, I have the following code but it doesn't work and it doesn't throw me any error, could you guide me? If anyone has encountered this problem. Thank you so much

 ListView mContactsList = (ListView) view.findViewById(R.id.listagenda);
      mContactsList.setAdapter(mAdapter);
      mContactsList.setTextFilterEnabled(true);
      mContactsList.setFastScrollEnabled(true);

    numpad.addTextChangedListener(new TextWatcher() {

        public void onTextChanged(CharSequence arg0, int arg1, int arg2,
                                  int arg3) {
            String text = numpad.getText().toString();
            Toast.makeText(getContext(),text,Toast.LENGTH_LONG).show();
            ContactsListActivity.this.mAdapter.getFilter().filter(text);


        }

        public void beforeTextChanged(CharSequence arg0, int arg1,
                                      int arg2, int arg3) {

        }

        public void afterTextChanged(Editable arg0) {
            ListView av = (ListView) view.findViewById(R.id.listagenda);
            SimpleCursorAdapter filterAdapter = (SimpleCursorAdapter)av.getAdapter();
            filterAdapter.getFilter().filter(arg0.toString());

        }
    });

I have a class to save the email and user that connect in the application with sharedpreferences, but it saves the data without any keyreference, so when I want to save a different data without overwriting the previous one, it does not do it, I imagine that I will need to assign some keyto reference it and be able to save the data I want without stepping on the previous one and assigning it a name:

public void save(Context context, String text) {
    SharedPreferences settings;
    Editor editor;

    settings = PreferenceManager.getDefaultSharedPreferences(context);

    editor = settings.edit();

    editor.putString(PREFS_KEY, text);

    editor.commit();
}

Here I call the function:

String email = _emailText.getText().toString();
sharedPreference.save(this, email);