CODEWITHSUNDEEP
androidlistviewandroid-listview
Sridhar Venkatesan
Sridhar Venkatesan

Reputation: 11

How to get the count of Listview item selection in Android

I have a ListView which am setting that to my adapter. The ListView item contains two view elements which are chekbox and TextView.

I have given the setChoiceMode(ListView.CHOICE_MODE_MULTIPLE) for the ListView.

When i want to select one or more element, I want to get the count (based on selecting and deselecting).

I can't do this stuff in onItemClickListener of ListView.

So I have written the logic in BaseAdapter.

holder.check.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            count += 1;
        }
    });

But If i deselect the item then the value have to decrease. If iam having only one item in ListView then I can write 

SparseBooleanArray checked = listView.getCheckedItemPositions();

and get the value in Fragment. Just I get confused. Could someone help me?

Upvotes: 1

Views: 1642

Answers (1)

Saehun Sean Oh
Saehun Sean Oh

Reputation: 2281

Use this.

SparseBooleanArray checkedItemPositions = getListView().getCheckedItemPositions();
int count = 0;
for (int i = 0, ei = checkedItemPositions.size(); i < ei; i++) {
    if (checkedItemPositions.valueAt(i)) {
        count++;
    }
} 
// use count as you wish

Make sure count is in a local (or block of the OnClickListener) scope so that every time you click a button or something, count gets reset and it recounts how many items are checked/unchecked.

Let me know if you have more question :)

Upvotes: 2

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