Deleting Single Choice Listview Items

This post assumes you know how to create a single choice listview and a button in xml.

1) First, define these three variables:


     public static List<String> strings;
     public static ListAdapter adapter;
     ListView lv;

2) Next, set up the listview in onCreate:


     strings = new ArrayList<String>();
     lv = getListView();
     adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_single_choice, strings);
     lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
     lv.setAdapter(adapter);



3) Last, set up the delete button:


     Button btnRemove = (Button) findViewById(R.id.ButtonEditLabOrderForm_Remove);
     btnRemove.setOnClickListener(new View.OnClickListener() {
          @SuppressWarnings("unchecked")
          public void onClick(View v) {
               // Code below only works with ONE CHECKED ITEM at a time
               int len = lv.getCount();
SparseBooleanArray checked = lv.getCheckedItemPositions();
for (int i = 0; i < len; i++)
if (checked.get(i)) {
String item = strings.get(i);
// do whatever you want with the checked item
strings.remove(item);
((ArrayAdapter<String>) adapter).notifyDataSetChanged();
}
   }
     });

Thats it !

Still trying to figure out how to delete multiple items in a multiple choice list :(