Question

Possible Duplicate:
how to change selected list item background, android

In android tablets in the settings screen, the background of the listitem from the list changes until user makes the next selection, Which is standard way of getting that feature to work. Till now i used a boolean for the item which is selected and i was refreshing the list to reflect the changes after each click, i dont this, this is the right approach?

Answer 1

You can use the following process . It works fine.

   Write a Global bean that get the postion of the selected item from the list.

     public class Global {      
        public static int mListPosition = 0; 

        public static int getListPosition() {
                return mListPosition;
            }    
        public static void setListPosition(int mListPosition) {
                Global.mListPosition = mListPosition;
            }   

        }

from List onClickListener set the position into the global bean


mList.setOnItemClickListener(new OnItemClickListener() {

            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                Global.setListPosition(arg2);
mAdapter.notifyDataSetChanged();
}
        });



in the adapter 

    @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View v = convertView;
            if (v == null) {
                LayoutInflater vi = (LayoutInflater) mCtx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                v = vi.inflate(R.layout.details_retailer_list_row, null);

                mHolder = new ViewHolder();
                v.setTag(mHolder);

                mHolder.mDetailsRetailerLayout = (LinearLayout) v.findViewById(R.id.details_cart_retailer_row_layout);
                mHolder.mDetailsRetailer = (TextView) v.findViewById(R.id.detailsRetailerRow);

            }
            else {
                mHolder =  (ViewHolder) v.getTag();
            }           


            final CartDetailsRetailerBean mDetailsRetailerBean = mItems.get(position);
            if (position == Global.getListPosition()) {
                mHolder.mDetailsRetailerLayout
                        .setBackgroundResource(R.drawable.row_white);
            } else {
                mHolder.mDetailsRetailerLayout
                        .setBackgroundResource(R.drawable.row_red);
            }

            if(mDetailsRetailerBean != null){

                Log.i("Global Position", ""+Global.getListPosition());



                mHolder.mDetailsRetailer.setText(mDetailsRetailerBean.getRetailerName());

            }

            return v;
        }

        class ViewHolder {
            public LinearLayout mDetailsRetailerLayout;
            public TextView mDetailsRetailer;

        }


Please apply it . I think it will work fine.