我正在使用此link中的自定义日历。它的工作,但除当月之外的所有月份的日期都显示为灰色。我希望在第二次截图时显示所有月份。但它除了当月(即4月)以外的所有月份都会变灰。任何人都可以帮我显示每个月的第二个截图,而不是像第一个截图?
Calendar View:
public class CalendarView extends LinearLayout
{
// for logging
private static final String LOGTAG = "Calendar View";
// how many days to show, defaults to six weeks, 42 days
private static final int DAYS_COUNT = 42;
// default date format
private static final String DATE_FORMAT = "MMM yyyy";
// date format
private String dateFormat;
// current displayed month
private Calendar currentDate = Calendar.getInstance();
//event handling
private EventHandler eventHandler = null;
// internal components
private LinearLayout header;
private ImageView btnPrev;
private ImageView btnNext;
private TextView txtDate;
private GridView grid;
// seasons' rainbow
int[] rainbow = new int[] {
R.color.summer,
R.color.fall,
R.color.winter,
R.color.spring
};
// month-season association (northern hemisphere, sorry australia :)
int[] monthSeason = new int[] {2, 2, 3, 3, 3, 0, 0, 0, 1, 1, 1, 2};
public CalendarView(Context context)
{
super(context);
}
public CalendarView(Context context, AttributeSet attrs)
{
super(context, attrs);
initControl(context, attrs);
}
public CalendarView(Context context, AttributeSet attrs, int defStyleAttr)
{
super(context, attrs, defStyleAttr);
initControl(context, attrs);
}
/**
* Load control xml layout
*/
private void initControl(Context context, AttributeSet attrs)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
inflater.inflate(R.layout.control_calendar, this);
loadDateFormat(attrs);
assignUiElements();
assignClickHandlers();
updateCalendar();
}
private void loadDateFormat(AttributeSet attrs)
{
TypedArray ta = getContext().obtainStyledAttributes(attrs, R.styleable.CalendarView);
try
{
// try to load provided date format, and fallback to default otherwise
dateFormat = ta.getString(R.styleable.CalendarView_dateFormat);
if (dateFormat == null)
dateFormat = DATE_FORMAT;
}
finally
{
ta.recycle();
}
}
private void assignUiElements()
{
// layout is inflated, assign local variables to components
header = (LinearLayout)findViewById(R.id.calendar_header);
btnPrev = (ImageView)findViewById(R.id.calendar_prev_button);
btnNext = (ImageView)findViewById(R.id.calendar_next_button);
txtDate = (TextView)findViewById(R.id.calendar_date_display);
grid = (GridView)findViewById(R.id.calendar_grid);
}
private void assignClickHandlers()
{
// add one month and refresh UI
btnNext.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
currentDate.add(Calendar.MONTH, 1);
updateCalendar();
}
});
// subtract one month and refresh UI
btnPrev.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
currentDate.add(Calendar.MONTH, -1);
updateCalendar();
}
});
// long-pressing a day
grid.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener()
{
@Override
public boolean onItemLongClick(AdapterView<?> view, View cell, int position, long id)
{
// handle long-press
if (eventHandler == null)
return false;
eventHandler.onDayLongPress((Date)view.getItemAtPosition(position));
return true;
}
});
}
/**
* Display dates correctly in grid
*/
public void updateCalendar()
{
updateCalendar(null);
}
/**
* Display dates correctly in grid
*/
public void updateCalendar(HashSet<Date> events)
{
ArrayList<Date> cells = new ArrayList<>();
Calendar calendar = (Calendar)currentDate.clone();
// determine the cell for current month's beginning
calendar.set(Calendar.DAY_OF_MONTH, 1);
int monthBeginningCell = calendar.get(Calendar.DAY_OF_WEEK) - 1;
// move calendar backwards to the beginning of the week
calendar.add(Calendar.DAY_OF_MONTH, -monthBeginningCell);
// fill cells
while (cells.size() < DAYS_COUNT)
{
cells.add(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
// update grid
grid.setAdapter(new CalendarAdapter(getContext(), cells, events));
// update title
SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
txtDate.setText(sdf.format(currentDate.getTime()));
// set header color according to current season
int month = currentDate.get(Calendar.MONTH);
int season = monthSeason[month];
int color = rainbow[season];
header.setBackgroundColor(getResources().getColor(color));
}
private class CalendarAdapter extends ArrayAdapter<Date>
{
// days with events
private HashSet<Date> eventDays;
// for view inflation
private LayoutInflater inflater;
public CalendarAdapter(Context context, ArrayList<Date> days, HashSet<Date> eventDays)
{
super(context, R.layout.control_calendar_day, days);
this.eventDays = eventDays;
inflater = LayoutInflater.from(context);
}
@Override
public View getView(int position, View view, ViewGroup parent)
{
// day in question
Date date = getItem(position);
int day = date.getDate();
int month = date.getMonth();
int year = date.getYear();
// today
Date today = new Date();
// inflate item if it does not exist yet
if (view == null)
view = inflater.inflate(R.layout.control_calendar_day, parent, false);
// if this day has an event, specify event image
view.setBackgroundResource(0);
if (eventDays != null)
{
for (Date eventDate : eventDays)
{
if (eventDate.getDate() == day &&
eventDate.getMonth() == month &&
eventDate.getYear() == year)
{
// mark this day for event
view.setBackgroundResource(R.drawable.reminder);
break;
}
}
}
// clear styling
((TextView)view).setTypeface(null, Typeface.NORMAL);
((TextView)view).setTextColor(Color.BLACK);
if (month != today.getMonth() || year != today.getYear())
{
// if this day is outside current month, grey it out
((TextView)view).setTextColor(getResources().getColor(R.color.greyed_out));
}
else if (day == today.getDate())
{
// if it is today, set it to blue/bold
((TextView)view).setTypeface(null, Typeface.BOLD);
((TextView)view).setTextColor(getResources().getColor(R.color.today));
}
// set text
((TextView)view).setText(String.valueOf(date.getDate()));
return view;
}
}
/**
* Assign event handler to be passed needed events
*/
public void setEventHandler(EventHandler eventHandler)
{
this.eventHandler = eventHandler;
}
/**
* This interface defines what events to be reported to
* the outside world
*/
public interface EventHandler
{
void onDayLongPress(Date date);
}
}
&#13;
答案 0 :(得分:0)
使用txtDate.getText()获取在heade中设置的日期;
SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
Date currentSelectedDate = sdf.parse(using txtDate.getText());
if (month != currentSelectedDate.getMonth() || year != currentSelectedDate.getYear())