ListView (activity feed) with 20 different types of rows, each having 20 different views

A week ago I asked a question on stackoverflow about having a listview with different kinds of items in it.

I know how to populate a list with custom items via custom adapter. But how do I populate it with a few different types of items?

At the time I didnt know that it would have made a difference so I mentioned I only have 4 types of list items not to complicate things. I got some responses with extremely simple cases explained (2 types of items with a single view inside each one). I dont think I can implement those approaches explained in the examples I got, I need a more object oriented approach.

I would like to have a separate class that takes an XML layout and deals with its views and its buttons.

Something like this:

public class MyProfileCommentAdapter extends BaseAdapter { private ArrayList itemNames = new ArrayList(); private ArrayList itemRatings = new ArrayList(); private ArrayList itemComments = new ArrayList(); private ArrayList itemCommentDates = new ArrayList(); private ArrayList itemIds = new ArrayList(); private Context context; private LayoutInflater layoutInflater; private ImageButton iMyCommentsCommentedProductImage; private TextView tvMyCommentsCommentedItemName; private TextView tvMyCommentsCommentedItemDate; private TextView tvMyCommentsCommentedItemContent; private TextView tvMyCommentsCommentedItemRating; private Button bMyCommentsEditComment; private Button bMyCommentsDeleteComment; public MyProfileCommentAdapter(Context context, ArrayList itemNames, ArrayList itemRatings, ArrayList itemComments, ArrayList itemCommentDates, ArrayList itemIds){ this.context = context; this.itemNames = itemNames; this.itemComments = itemComments; this.itemCommentDates = itemCommentDates; this.itemRatings = itemRatings; this.itemIds = itemIds; layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public int getCount() { return itemIds.size(); } @Override public Object getItem(int arg0) { return itemIds.get(arg0) ; } @Override public long getItemId(int position) { return itemIds.get(position); } @Override public View getView(int position, View convertView, ViewGroup parent) { if(convertView==null) { convertView = layoutInflater.inflate(R.layout.item_adapterable_my_profile_comment, parent, false); } iMyCommentsCommentedProductImage = (ImageButton) convertView.findViewById(R.id.iMyCommentsCommentedProductImage); tvMyCommentsCommentedItemName = (TextView) convertView.findViewById(R.id.tvMyCommentsCommentedItemName); tvMyCommentsCommentedItemDate = (TextView) convertView.findViewById(R.id.tvMyCommentsCommentedItemDate); tvMyCommentsCommentedItemContent = (TextView) convertView.findViewById(R.id.tvMyCommentsCommentedItemContent); tvMyCommentsCommentedItemRating = (TextView) convertView.findViewById(R.id.tvMyCommentsCommentedItemRating); bMyCommentsEditComment = (Button) convertView.findViewById(R.id.bMyCommentsEditComment); bMyCommentsDeleteComment = (Button) convertView.findViewById(R.id.bMyCommentsDeleteComment); tvMyCommentsCommentedItemName.setText(itemNames.get(position)); tvMyCommentsCommentedItemDate.setText(itemCommentDates.get(position)); tvMyCommentsCommentedItemRating.setText(String.valueOf(itemRatings.get(position))); tvMyCommentsCommentedItemContent.setText(itemComments.get(position)); return convertView; }}

I need to have about 20 of these and put them all in a list view (the activity feed of my app), depending on what activities have recently occurred in my app. Each different activity has a separate XML defined with as much view elements in it, as this one, all doing and displaying different stuff.

Now, If I was to use the suggested approach,

@Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; int type = getItemViewType(position); Log.v(LOG_TAG, "getView " + position + " " + convertView + " type = " + type); if (convertView == null) { holder = new ViewHolder(); switch (type) { case TYPE_ITEM: convertView = mInflater.inflate(R.layout.item, null); holder.textView = (TextView)convertView.findViewById(R.id.text); break; case TYPE_SEPARATOR: convertView = mInflater.inflate(R.layout.separator, null); holder.textView = (TextView)convertView.findViewById(R.id.textSeparator); break; default: break; } convertView.setTag(holder); } else { holder = (ViewHolder)convertView.getTag(); } holder.textView.setText(mData.get(position)); return convertView; }

Looks simple, doesnt it? But in my case, I should have 20 different cases in the SWITCH and each one should have 20-30 rows of code in it. I dont want to implement it this way. Sadly, I have no clue of what to do...

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