我在创建基于GridView的日历时遇到问题。这是网格:
这应该是一个由事件填充的日历,因此我有我的适配器实现OnClickListener,并且为日历中的每个按钮设置了该监听器。除了第一个按钮(在本例中为30)之外,它对每个单个按钮均适用。当我单击它时,它不起作用,但是当我尝试单击第一个按钮后又单击另一个按钮时,它将在对另一个按钮单击之前执行对第一个按钮的单击。
我已经扫描了约10页相关问题,但没有发现有人遇到此问题。请帮忙!
根据要求,这是我的代码的getView函数: public View getView(int position, View convertView, ViewGroup parent)
{
View row = convertView;
ViewHolder holder;
if (row == null)
{
holder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) _context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = inflater.inflate(R.layout.calendar_day_gridcell, parent, false);
holder.gridCell = (Button) row.findViewById(R.id.calendar_day_gridcell);
holder.multiDayEvent = (EventLengthView)row.findViewById(R.id.eventLengthView);
}
else{
holder = (ViewHolder)row.getTag();
}
int calendarGridHeight = (calendarView.getHeight()-5)/(getCount()/7);
AbsListView.LayoutParams params = new AbsListView.LayoutParams(
android.view.ViewGroup.LayoutParams.FILL_PARENT,
calendarGridHeight);
row.setLayoutParams(params);
//Change the background drawable depending on the position in the calendar
if ((position+1) % 7 == 0){
holder.gridCell.setBackgroundDrawable(getResources().getDrawable(R.drawable.calendar_button_selector_end_row));
}
if (getCount() - position < 8){
holder.gridCell.setBackgroundDrawable(getResources().getDrawable(R.drawable.calendar_button_selector_end_column));
}
if (position == getCount()-1){
holder.gridCell.setBackgroundDrawable(getResources().getDrawable(R.drawable.calendar_button_selector_end));
}
holder.gridCell.setOnClickListener(this);
holder.gridCell.setTag(null);//clear tags
// ACCOUNT FOR SPACING
String[] day_color = list.get(position).split("-");
int theday = Integer.parseInt(day_color[0]);
int themonth = Integer.parseInt(day_color[2]);
int theyear = Integer.parseInt(day_color[3]);
String date = DateFormat.format("dd/M/yy", new Date(theyear,themonth,theday)).toString();
if ((!eventsMap.isEmpty()) && (eventsMap != null))
{
if (eventsMap.containsKey(date))
{
holder.multiDayEvent.SetMeasure(calendarView.getWidth()/7, calendarGridHeight);
holder.multiDayEvent.setVisibility(View.VISIBLE);
//holder.singleDayEvent.setVisibility(View.VISIBLE);
Event event = (Event) eventsMap.get(date);
holder.multiDayEvent.AddEvent(event);
holder.gridCell.setTag(event);
}
else{
//holder.singleDayEvent.setVisibility(View.GONE);
holder.multiDayEvent.setVisibility(View.GONE);
}
}
// Set the Day GridCell
holder.gridCell.setText(Integer.toString(theday));
if (day_color[1].equals("GREY"))
{
holder.gridCell.setTextColor(Color.GRAY);
}
if (day_color[1].equals("WHITE"))
{
holder.gridCell.setTextColor(Color.WHITE);
}
if (day_color[1].equals("BLUE"))
{
holder.gridCell.setTextColor(Color.BLUE);
}
row.setTag(holder);
return row;
}
public class ViewHolder{
Button gridCell;
ImageView singleDayEvent;
EventLengthView multiDayEvent;
}
public void onClick(View view)
{
if (view.getTag() != null){
Event event = (Event)view.getTag();
eventListView.setAdapter(new EventListAdapter(CalendarScreen.this, event));
eventListViewLayout.setVisibility(View.VISIBLE);
eventListViewLayout.startAnimation(fadeIn);
}
else if (eventListViewLayout.getVisibility() == View.VISIBLE){
onBackPressed();
}
}
除左上角的第一个网格单元外,每个网格单元均调用onClick
最佳答案
好的,我找到了解决方案。问题是这些行:
ViewHolder holder;
if (convertView == null)
{
holder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) _context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.calendar_day_gridcell, parent, false);
holder.gridCell = (Button) convertView.findViewById(R.id.calendar_day_gridcell_button);
holder.multiDayEvent = (EventLengthView) convertView.findViewById(R.id.eventLengthView);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
当在其中放置未显示状态的gridCell按钮时,它将以某种方式混合适配器中第一个位置的Click监听器。我最终通过在每次通过时仅使持有者身份无效化来解决它,而不是通过标签来获取它(这对性能更好,但是很好)。谢谢大家的帮助。