Question

我正在预订保龄球，我的列表视图中有特定的问题我在这里做了自定义适配器：

public ReservationAdapter(Context context, List<Reservation> items, int year, int month, int day) {
        this.context = context;
        this.listReservations = items;
        this.year = year;
        this.month = month;
        this.day = day;
}

/*private view holder class*/
private class ViewHolder {
    TextView time;
    Button reserve;
}

public View getView(int position, View convertView, ViewGroup parent) {

    final ViewHolder holder;

    LayoutInflater mInflater = (LayoutInflater)
            context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.rowitem_reservation_layout, null);

        holder = new ViewHolder();
        holder.time = (TextView) convertView.findViewById(R.id.reserve_textview);
        holder.reserve = (Button) convertView.findViewById(R.id.reserve_button);

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

    reservation = (Reservation) getItem(position);

    Calendar calendar = Calendar.getInstance();
    calendar.set(year,month,day);
    Calendar calendarToday = Calendar.getInstance();

    holder.time.setText(reservation.getStartHour() + ":00 - " + reservation.getEndHour() + ":00");
    holder.reserve.setTag(reservation.getStartHour() + ":00 - " + reservation.getEndHour() + ":00");

    if (reservation.getStartHour() <= calendar.get(Calendar.HOUR_OF_DAY) && calendar.equals(calendarToday)) {
        holder.reserve.setBackgroundResource(R.drawable.closed_button);
        holder.reserve.setClickable(false);
        holder.reserve.setFocusable(false);
        holder.reserve.setText("Closed");
    } else {
        if (reservation.isReserved()) {
            holder.reserve.setBackgroundResource(R.drawable.reserved_button);
            holder.reserve.setClickable(false);
            holder.reserve.setFocusable(false);
            holder.reserve.setText("Reserved");
        } else {
            if (reservation.isSelected()) {
                holder.reserve.setBackgroundResource(R.drawable.selected_button);
                holder.reserve.setClickable(true);
                holder.reserve.setFocusable(true);
                holder.reserve.setText("Selected");
            }
            else{
                holder.reserve.setBackgroundResource(R.drawable.nonreserved_button);
                holder.reserve.setClickable(true);
                holder.reserve.setFocusable(true);
                holder.reserve.setText("Free");
            }
        }
    }

    holder.reserve.setId(position);

    return convertView;
}

它扩展了BaseAdapter我实现的方法getCount，getItem和getItemId只是不要粘贴它们。

问题：有时候有时某些必须关闭的行不会被关闭当我向下和向上滚动或创建列表视图的活动时会出现问题

请帮我解决这个问题

有时listview糟糕的加载Android

0 个答案: