get all checked items in listview and send it to mysql database in a click of a button in android

I have a listview where the items there is generated by phpmysql, my listview has a name and a checkbox now what i want to do is when i check some items in the listview it will send the checked items in another table in my database in a click of a button. How can i do that? I don't have any code for checkbox because i dont know where to put it. Thanks!

private void getSelectedItems() {
    List<String>list = new ArrayList<String>();
    try {
        SparseBooleanArray checkedItems = new SparseBooleanArray();
        checkedItems = listView.getCheckedItemPositions();
        if (checkedItems == null) {
            return;
        }
        final int checkedItemsCount = checkedItems.size();
        for (int i = 0; i < checkedItemsCount; ++i) {
            int position = checkedItems.keyAt(i);
            boolean bool = checkedItems.valueAt(position);
            if (bool) {
               list.add(mainList.get(position));
            }
        }

    } catch (Exception e) {

    }
}