Performance tips for ListView in Android?

Enhancing the performance of ListView in Android applications is crucial for providing a smooth user experience. Here are some effective tips to optimize ListView:

1. Use ViewHolder Pattern: This pattern helps in recycling views, minimizing the cost of findViewById, and thus accelerates the scrolling performance.
2. Avoid Complex Layouts: Simplifying your item layout design can greatly enhance ListView performance.
3. Use setHasStableIds: Implement this method if your item IDs are unique and stable. It helps ListView to optimize item view recycling.
4. Optimize Adapter: If possible, load images asynchronously and use caching libraries like Glide or Picasso to manage image loading efficiently.
5. Disable Scrollbar: If the scrollbar is unnecessary, you can disable it, which can slightly improve performance.

Example Code:

    // ViewHolder Pattern Implementation
    public class MyListAdapter extends BaseAdapter {
        private List dataList;
        private LayoutInflater inflater;

        public MyListAdapter(Context context, List dataList) {
            this.inflater = LayoutInflater.from(context);
            this.dataList = dataList;
        }

        @Override
        public int getCount() {
            return dataList.size();
        }

        @Override
        public Object getItem(int position) {
            return dataList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;

            if (convertView == null) {
                convertView = inflater.inflate(R.layout.list_item, parent, false);
                holder = new ViewHolder();
                holder.textView = (TextView) convertView.findViewById(R.id.text_view);
                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }

            // Set data to the TextView
            holder.textView.setText(dataList.get(position));

            return convertView;
        }

        static class ViewHolder {
            TextView textView;
        }
    }