我正在尝试检索本周的当前日期IE:Mon-Sun。然后我有两个按钮,Previous和Next,它们应该检索下一个和前几个星期的日期。这应该允许我无限期地轮换一年中的几周。
代码加载Mon-Sun的中间日期。当我点击下一个按钮时,它会带我到下一周的下一组天。当我从这里点击Previous时,它会跳过初始加载的周并跳转到下周的日期。当我使用Previous to Next进行另一种方式时也会发生同样的情况。当我继续按下下一个和上一个按钮时,他们不会继续加载新周。
我做错了什么?
初始加载代码:
DateFormat format = new SimpleDateFormat("M-dd");
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
calendar.add(Calendar.DAY_OF_MONTH, 7);
days = new String[7];
for (int i = 0; i < 7; i++)
{
days[i] = format.format(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
下周代码:
DateFormat format = new SimpleDateFormat("M-dd");
Calendar calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
calendar.add(Calendar.DAY_OF_MONTH, -7);
days = new String[7];
for (int i = 0; i < 7; i++)
{
days[i] = format.format(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
上周代码:
Calendar calendar; // Stick this at the start of your code
解决方案:
DateFormat format = new SimpleDateFormat("M-dd");
calendar = Calendar.getInstance();
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
days = new String[7];
for (int i = 0; i < 7; i++)
{
days[i] = format.format(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
初始加载代码:
DateFormat format = new SimpleDateFormat("M-dd");
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
calendar.add(Calendar.DAY_OF_MONTH, 7);
days = new String[7];
for (int i = 0; i < 7; i++)
{
days[i] = format.format(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
下周代码:
DateFormat format = new SimpleDateFormat("M-dd");
calendar.setFirstDayOfWeek(Calendar.MONDAY);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
calendar.add(Calendar.DAY_OF_MONTH, -7);
days = new String[7];
for (int i = 0; i < 7; i++)
{
days[i] = format.format(calendar.getTime());
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
上周代码:
{{1}}
答案 0 :(得分:0)
我想通过调用:Calendar calendar = Calendar.getInstance();每次都让日历混乱。
解决方法是删除Calendar calendar = Calendar.getInstance();从前一个和下一个代码实现变量Calander日历;在代码的开头。我将使用解决方案编辑原始代码。