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POHow to implement a button that gets all checkbox's state and adds the value of checked item into arraylist?
 

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  1. POHow to implement a button that gets all checkbox's state and adds the value of checked item into arraylist?
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    <p>I've searched around for a solution to my problem but couldn't find one so here it is.</p> <p>I have a arraylist of data that i display using a combination of textview and checkbox. This is done using custom adapter which basically inflates it row by row. Everything up to this point is fine until <strong>i want to retrieve the checked data</strong>. </p> <p>What i read from other people is that their checked boxes becomes unchecked when scrolled due to the recycling of the view. <strong>For me the state of the checkboxes remain</strong> but i don't know how to retireve them without scrolling it. When i check a box it is "check" on the UI but actaully it is not recognized until i scroll the checked item out of view and back in again. </p> <p>Currently i use a global arraylist to populate with list.get(position).getName() if the list.get(position).isSelected() == true. But you see this arraylist remains empty unless i scroll the item out of view and back again. the same applies when the boxes are unchecked, they remain in the arraylist until i scroll. What i have in mind is a submit button that takes all the checkbox's current state when it is clicked then construct the arraylist.</p> <p>any idea how to create such thing?</p> <pre><code>public View getView(int position, View convertView, ViewGroup parent) { View view = null; if (convertView == null) { LayoutInflater inflator = context.getLayoutInflater(); view = inflator.inflate(R.layout.qlist, null); final ViewHolder viewHolder = new ViewHolder(); viewHolder.text = (TextView) view.findViewById(R.id.label); viewHolder.checkbox = (CheckBox) view.findViewById(R.id.check); viewHolder.checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { Model element = (Model) viewHolder.checkbox.getTag(); // if(isChecked){ selctionCount++; } else if (!isChecked){ selctionCount--; } if(selctionCount &gt; 2) { Toast.makeText(context, "error, you checked more than 2!", Toast.LENGTH_LONG).show(); element.setSelected(false); } else { element.setSelected(buttonView.isChecked()); } System.out.println(selctionCount); } }); view.setTag(viewHolder); viewHolder.checkbox.setTag(list.get(position)); } else { view = convertView; ((ViewHolder) view.getTag()).checkbox.setTag(list.get(position)); } ViewHolder holder = (ViewHolder) view.getTag(); holder.text.setText(list.get(position).getName()); //This is the problem here! the selected arraylist (global) is empty even when i check the boxes, //it only populates when i scroll the checked boxes out of view and back in! helphelp! holder.checkbox.setChecked(list.get(position).isSelected()); if (list.get(position).isSelected() == true){ selected.add(list.get(position).getName()); } else if (list.get(position).isSelected() == false){ selected.remove(list.get(position).getName()); } return view; } </code></pre> <p>}</p>
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    1. CO[check this thread](http://stackoverflow.com/questions/8292189/notifydatasetchanged-for-multiple-checkboxes)
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      1. USLalit Poptani
    2. COHi, thx for the link but my problem is to get the state of all the checkboxes when i click the button whether check or unchecked, not a button to check every box. am i missing something?
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    3. COI've added my code to the question.
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