set animation on listview scrolling in android

Question

I want to set an animation for a ListView for when a user scrolls the ListView. I am setting an animation for ListView when loading, b

Answer 1

This is the best possible solution that i can give to you as per your requirement! Please go through this Adapter once.

 public class MyAdapter extends ArrayAdapter{

            private int mLastPosition;

            public MyAdapter(Context context, ArrayList objects) {
                super(context, 0, objects);
            }

            private class ViewHolder{
                public TextView mTextView;
            }

            @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
            @Override
            public View getView(int position, View convertView, ViewGroup parent) {

                ViewHolder holder;

                if (convertView == null) {
                    holder = new ViewHolder();
                    convertView = LayoutInflater.from(getContext()).inflate(R.layout.grid_item, parent, false);
                    holder.mTextView = (TextView) convertView.findViewById(R.id.checkbox);
                    convertView.setTag(holder);
                } else {
                    holder = (ViewHolder) convertView.getTag();
                }

                holder.mTextView.setText(getItem(position));

                // This tells the view where to start based on the direction of the scroll.
                // If the last position to be loaded is <= the current position, we want
                // the views to start below their ending point (500f further down).
                // Otherwise, we start above the ending point.
                float initialTranslation = (mLastPosition <= position ? 500f : -500f);

                convertView.setTranslationY(initialTranslation);
                convertView.animate()
                        .setInterpolator(new DecelerateInterpolator(1.0f))
                        .translationY(0f)
                        .setDuration(300l)
                        .setListener(null);

                // Keep track of the last position we loaded
                mLastPosition = position;

                return convertView;
            }


        }