Get parent viewHolder in listView custom adapter

Question

I have a problem. My listView contains items which are divided in 2 groups:

if (datas.get(position).getStatus().equalsIgnoreCase("after")) {
      viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
      viewHolder.postNameView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
} else {
      viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.white));
      viewHolder.postNameView.setTextColor(getResources().getColor(R.color.white));
}

It looks like:

the amount of "white" fields differs every time due to current time.

And the problem is I need to increase textSize and make Bold the LAST white field (see marked field).

How can I do that from custom adapter?

---

What I tried:

private int state = 0;
....
       if (datas.get(position).getStatus().equalsIgnoreCase("after")) {
            if (state == 0) {
                //Make parent placeholder Bold here
                parentHolder = (ViewHolder) parent.getTag();
                parentHolder.postNameView.setTypeface(null, Typeface.BOLD);
                parentHolder.postTimeView.setTypeface(null, Typeface.BOLD);
                parentHolder.postNameView.setTextSize(24);
                parentHolder.postTimeView.setTextSize(24);
                state++;
            }
            viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
            viewHolder.postNameView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
        } else {
            viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.white));
            viewHolder.postNameView.setTextColor(getResources().getColor(R.color.white));
        }

so state will be 0 only for once. But parentHolder = (ViewHolder) parent.getTag(); doesn't work. It is null

Also I tried to find use of this post.

---

EDIT: The amount of White and Dirty white items varies every time adapter is created since .getStatus() changes on server due to current time. It can be "before" (if starting time < current time) and "after" (current time < starting time).

And I need to Mark exactly that item, which is kind of "now" i.e. the first one "after".

The entire adapter (UPDATED):

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

        if (convertView == null) {
            LayoutInflater inflater = myContext.getLayoutInflater();
            convertView = inflater.inflate(R.layout.channel_listview_item, null);

            viewHolder = new ViewHolder();
            viewHolder.postNameView = (TextView) convertView.findViewById(R.id.channel_listview_item_name);
            viewHolder.postTimeView = (TextView) convertView.findViewById(R.id.channel_listview_item_time);

            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        if (datas.get(position).getStatus().equalsIgnoreCase("before")) {

            viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.white));
            viewHolder.postNameView.setTextColor(getResources().getColor(R.color.white));
        } else {
            viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
            viewHolder.postNameView.setTextColor(getResources().getColor(R.color.text_not_highlighted));

            //perform this 'if' only once at this position
             if (/*need such condition that occurs only for ONCE*/) {
                viewHolder.postNameView.setTypeface(null, Typeface.BOLD);
                viewHolder.postTimeView.setTypeface(null, Typeface.BOLD);
                viewHolder.postNameView.setTextSize(24);
                viewHolder.postTimeView.setTextSize(24);
                viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.white));
                viewHolder.postNameView.setTextColor(getResources().getColor(R.color.white));
            }
        }
        viewHolder.postNameView.setText(datas.get(position).getTitle());
        viewHolder.postTimeView.setText(datas.get(position).getStart());
        return convertView;
    }
}

static class ViewHolder {
    TextView postTimeView;
    TextView postNameView;
}

Answer 1

I have suggested code/design that I think should work eventually. It may be similar to your existing code design but I don't see code where datas list is setting the status for "before" or "after". Regardless I am using your terminology of "after" and try avoiding to change much code.

Suggested code:

int afterTimePosition = 0;

@Override
public View getView(int position, View convertView, ViewGroup parent) {
...
   if (convertView == null) {
   ...
   } else {
      viewHolder = (ViewHolder) convertView.getTag();
   }

   if (position > afterTimePosition) {
      // Re-evaluate the AFTER line, MAY need to change it
      int currentTime = Server.getTime();     // replace getTime with a proper method call

      // Check time only after the AFTER line.

      // Need datas to save the date/time.
      if (datas.get(afterTimePosition).getTime() < currentTime) {
          // Need to change the AFTER line by evaluating time in the ArrayList against current time
          for (int i= afterTimePosition; i <= position; i++) {
              if (datas.get(i).getTime() >= currentTime) {
                  afterTimePosition = i;
                  break;      // found the new AFTER line
              }
          }
       }   // if datas...
    }

    if (afterTimePosition < position) {
        // BEFORE border line
        viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.white));
        viewHolder.postNameView.setTextColor(getResources().getColor(R.color.white));
    } else {
        // AFTER border line
        viewHolder.postTimeView.setTextColor(getResources().getColor(R.color.text_not_highlighted));
        viewHolder.postNameView.setTextColor(getResources().getColor(R.color.text_not_highlighted));

        viewHolder.postNameView.setTypeface(null, Typeface.BOLD);
        viewHolder.postTimeView.setTypeface(null, Typeface.BOLD);
    }

Notes:

1. I am using the term AFTER meaning after the current time or the same.
2. My design idea is to save the row position into simple variable afterTimePosition. afterTimePosition is the AFTER line. It will be checked upon in code if (afterTimePosition < position) for determining when to highlight text. I try to be simple in design so that I won't get easily confused.
3. ArrayList datas need to save the time in integer or long. It takes only little amount of memory for it.
4. The code with for (int i= afterTimePosition... , signifies that the AFTER line or row items needs reevaluation. I think code is simple to understand.

Keep us posted...