Selecting All Items in a Listview on checkbox select

Question

I am using simple listView with simple_list_item_multiple_choice I have added a checkbox and on its checked event want all list items to get selected

Answer 1

Call a method from a ListAdapter on a button click or onOptionsItemSelected(MenuItem item).

case  R.id.selectAll:
                listAdapterData.selectAll();
                return true;

case  R.id.unselectAll:
                listAdapterData.unselectAll();
                 return true;

And then,

public class ListAdapterData extends BaseAdapter {
    Context cntxts;
    private LayoutInflater mInflater;
    private ArrayList objects;
    public SparseBooleanArray mSelectedItemsIds;
    boolean[] checkBoxState;
    boolean IsVisibleMain;

   public ListAdapterData(Context context, ArrayList objAll, boolean IsVisible) {
        mInflater = LayoutInflater.from(context);
        this.cntxts = context;
        this.objects = objAll;
        this.mSelectedItemsIds = new SparseBooleanArray();
        checkBoxState = new boolean[objects.size()];
        this.IsVisibleMain = IsVisible;
    }

    public void selectAll() {
        for (int i = 0; i < checkBoxState.length; i++) {
            checkBoxState[i] = true;
        }
        notifyDataSetChanged();
    }

    public void unselectAll() {
        for (int i = 0; i < checkBoxState.length; i++) {
            checkBoxState[i] = false;
        }
        notifyDataSetChanged();
    }
}