Dynamic update of Listview on click of child

Question

I populated a list of questions and answers with ListView.
Each question has 6 options(single selection); if I select any option, the previously selected option should be invalidated.

@Override
    public View getView(int position, View convertView, ViewGroup viewGroup) {
        View views = convertView;
            views = inflater.inflate(R.layout.row_question_list, null);
            holder = new ViewHolders();
        holder.titleQuestion = (TextView)views.findViewById(R.id.tv_quetion_label);
        holder.c_option1 = (TextView)views.findViewById(R.id.question);

        holder.ibOption1= (ImageButton)views.findViewById(R.id.ibOption1);
        holder.ibOption2= (ImageButton)views.findViewById(R.id.ibOption2);
        holder.ibOption3= (ImageButton)views.findViewById(R.id.ibOption3);
        holder.ibOption4 = (ImageButton)views.findViewById(R.id.ibOption4);
        holder.ibOption5 = (ImageButton)views.findViewById(R.id.ibOption5);
        holder.ibOption6 = (ImageButton)views.findViewById(R.id.ibOption6);

  holder.ibOption6.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               // Need to select current selection and invalide previous selection.
// For current selection
 ((ImageButton) view).setSelected(type);
            }
        });
return views;
}

How to get the views of the other options?

Why not using [RadioButtons](https://developer.android.com/guide/topics/ui/controls/radiobutton.html)? — Yoni Gross, Jan 25 '17 at 11:02
you should set a int arraylist or array in yor adapter. size of array must be same with your number of questions. after each click by user, you should set answer in proper position of array. and you should set current answer using read answer of each row in array — iman kazemayni, Jan 25 '17 at 11:18
@imankazemayni , Am not able to clear previous selected option — Sreekanth, Jan 25 '17 at 11:22
You can use custom images in RadioButton as well. [See this answer](http://stackoverflow.com/a/19163987/3942452) — Yoni Gross, Jan 25 '17 at 11:23

Junaid Hafeez · Answer 1 · 2017-01-25T11:33:42.200

0

the simplest and better solution is to use Radio Group in your row_question_list with six radio buttons inside. You can further change orientation of parent radio group to horizontal to get above view. And can eventually get the selected radio button.

<RadioGroup>
   <RadioButton>
   <RadioButton>
   <RadioButton>
   <RadioButton>
   <RadioButton>
   <RadioButton>
</RadioGroup>

Further you can customize there backgrounds and set questions texts with them.

for the above view, you can make a drawable with images for state_selected = true and state_selected = false after every click on each button you can change button states of all the rest of buttons in the view or even you can change backgrounds.

holder.ibOption6.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               holder.ibOption1.setBackgroundResource(your background);
               holder.ibOption2.setBackgroundResource(your background);
               holder.ibOption3.setBackgroundResource(your background);
               holder.ibOption4.setBackgroundResource(your background);
               holder.ibOption5.setBackgroundResource(your background);
            }
        });

and you will have to set this for all the buttons. or you can try notifyDataSetChanged();.

edited Jan 25 '17 at 11:33

answered Jan 25 '17 at 11:09

Junaid Hafeez

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Thanks..Is there any possibility with ImageButtons like above code? – Sreekanth Jan 25 '17 at 11:13
am doing same for each option there is drawable image when click on image changing state_selected true or false, but am not able to change previous selected option – Sreekanth Jan 25 '17 at 11:20
how are you setting images first time? – Junaid Hafeez Jan 25 '17 at 11:26
Using ImageButton src with drawable file – Sreekanth Jan 25 '17 at 11:28
No..control on only view which we selected others are not working – Sreekanth Jan 25 '17 at 11:38
you have to setonClickListener for all the buttons and in onClick change backgrounds of rest of the buttons. – Junaid Hafeez Jan 25 '17 at 11:45
Yes am doing for all button...when click on any button am able to control view of that button, but previous selected view not able to change – Sreekanth Jan 25 '17 at 11:47
simply add `notifyDataSetChanged()` in end of each `onClick()` – Junaid Hafeez Jan 25 '17 at 11:52

Dynamic update of Listview on click of child

1 Answers1