Question

How to implement a custom code whenever an item in a multiple choice list view is a listview is checked or unchecked? I couldn’t find any suitable article on this.Any help will be much appreciated. Thank you. The following is my code for multiple choice list view.

ListView lv = (ListView) findViewById(R.id.listview);
ArrayList<String> stateList =Handler.getList();
String[] catalogList = new String[stateList.size()];
catalogList=stateList.toArray(catalogList);
lv.setAdapter(new ArrayAdapter<String>(Catalog.this,
android.R.layout.simple_list_item_multiple_choice, catalogList));

Answer 1

You can add onItemClickListener to your listview , on item click check the state of you checkbox and do action you want.

    ListView lv = (ListView) findViewById(R.id.listview);
    ArrayList<String> stateList =Handler.getList();
    String[] catalogList = new String[stateList.size()];
    catalogList=stateList.toArray(catalogList);
    lv.setAdapter(new ArrayAdapter<String>(Catalog.this,
    android.R.layout.simple_list_item_multiple_choice, catalogList));
    lv.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
            CheckedTextView checkedTextView = 
                    (CheckedTextView) view.findViewById(android.R.id.text1);
            System.out.println(
                    checkedTextView.getText()+":"+
                    !checkedTextView.isChecked() //because the onItemClick fired before checkedTextView change its state 
                    );
        }
        });

for why see this

you also can do it by implement custom adapter. a dirty example following:

public class CheckListAdapter extends BaseAdapter {
    //omitted
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

     final int pos = position; // if you need positon in this item's action
     View item = mInflater.inflate(R.layout.list_item_checkboxt, null);
     (CheckBox)item.findViewById(R.id.checkbox)).setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                // do your action here
        }
    });     
  }
 }

more effective of use adapter take a look this post!