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Android

Posted by Taylor Bryant
Taylor Bryant
7,395 Points

Why are we modifying the holder yet returning a view?

Why are we setting the holders fields with our day object properties and then immediately returning the convert view instead?

Philip Gales
Philip Gales
15,193 Points

Please post your code and maybe what course you are on and the video.

1 Answer

Taylor Bryant
Taylor Bryant
7,395 Points
Taylor Bryant
Taylor Bryant
7,395 Points

The Video is from the android course going over listviews, The Setting the Data video from Custom list views and adapters section

'''

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

    if(convertView == null){
        //brand new view
        convertView = LayoutInflater.from(mContext).inflate(R.layout.daily_list_item, null);

        holder = new ViewHolder();
        holder.iconImageView = (ImageView) convertView.findViewById(R.id.iconImageView);
        holder.temperatureLabel = (TextView) convertView.findViewById(R.id.temperatureLabel);
        holder.dayLabel = (TextView) convertView.findViewById(R.id.dayNameLabel);

        convertView.setTag(holder);

    }else{
        holder = (ViewHolder) convertView.getTag();

    }

    Day day = mDays[position];

    holder.iconImageView.setImageResource(day.getIconId());
    holder.temperatureLabel.setText(day.getTemperatureMax() + "");
    if (position == 0 ){
        holder.dayLabel.setText("Today");
    }else{
        holder.dayLabel.setText(day.getDayOfTheWeek());
    }

    return convertView;
}

'''