还款日.png
日历.png
选择还款日.png
这里是根据还款日是几号来显示可选的日期
1.还款日是当天则不能选择还款日
2.还款日是否大于或小于当天
大于：则显示当天到还款日前一天
小于：则显示当天到下一个月的还款日前一天
遵守协议
<FSCalendarDataSource,FSCalendarDelegate,FSCalendarDelegateAppearance>
创建日历
self.calendar = [[FSCalendar alloc] initWithFrame:CGRectMake(5, 40, kWidth-10, kHeight/2-30)];
self.calendar.dataSource = self;
self.calendar.delegate = self;
self.calendar.pagingEnabled = NO; // important
//多选
self.calendar.allowsMultipleSelection = YES;
//今天背景颜色
self.calendar.appearance.todayColor = [UIColor clearColor];
//今天标题颜色
self.calendar.appearance.titleTodayColor = [UIColor blackColor];
self.calendar.placeholderType = FSCalendarPlaceholderTypeFillSixRows;
如何创建NSDate对象
self.dateFormatter = [[NSDateFormatter alloc] init];
self.dateFormatter.dateFormat = @"yyyy-MM-dd";
NSDate *date = [self.formatter dateFromString:@"2018-05-9"];
如何使用NSCalendar处理NSDate
self.gregorian = [[NSCalendar alloc]initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
协议方法
//选中某一天进行相关操作
- (void)calendar:(FSCalendar *)calendar didSelectDate:(NSDate *)date atMonthPosition:(FSCalendarMonthPosition)monthPosition
{
[self.dateAry addObject:date];
[calendar reloadData];
NSInteger day = [self.gregorian component:NSCalendarUnitDay fromDate:date];
NSInteger year = [self.gregorian component:NSCalendarUnitYear fromDate:date];
NSInteger month = [self.gregorian component:NSCalendarUnitMonth fromDate:date];
[self.monthAndDayAry addObject:[NSString stringWithFormat:@"%02ld%02ld",month,day]];
NSLog(@"did select %@,%02ld,%02ld,%2ld,%@",[self.dateFormatter stringFromDate:date],day,month,year,self.monthAndDayAry);
}
//取消选中的日期进行相关操作
- (void)calendar:(FSCalendar *)calendar didDeselectDate:(NSDate *)date {
[self.dateAry removeObject:date];
[calendar reloadData];
NSInteger day = [self.gregorian component:NSCalendarUnitDay fromDate:date];
NSInteger year = [self.gregorian component:NSCalendarUnitYear fromDate:date];
NSInteger month = [self.gregorian component:NSCalendarUnitMonth fromDate:date];
[self.monthAndDayAry removeObject:[NSString stringWithFormat:@"%02ld%02ld",month,day]];
NSLog(@"did select %@,%ld,%ld,%ld,%@",[self.dateFormatter stringFromDate:date],day,month,year,self.monthAndDayAry);
}
//设置副标题
- (NSString *)calendar:(FSCalendar *)calendar subtitleForDate:(NSDate *)date
{
for (NSDate *d in self.dateAry) {
if ([self.gregorian isDate:d inSameDayAsDate:date]) {
return @"还款";
}
}
return nil;
}
//设置可选日期
- (BOOL)calendar:(FSCalendar *)calendar shouldSelectDate:(NSDate *)date {
NSInteger year;
NSInteger month;
//获取下个月日期
NSDate *nextMonth;
NSInteger day = [self.gregorian component:NSCalendarUnitDay fromDate:[self.calendar today]];
year = [self.gregorian component:NSCalendarUnitYear fromDate:[self.calendar today]];
month = [self.gregorian component:NSCalendarUnitMonth fromDate:[self.calendar today]];
//判断今天日期 和 当前选择日期。是大于还是等于还是小于
switch ([self.gregorian compareDate:[self.calendar today] toDate:date toUnitGranularity:NSCalendarUnitDay|NSCalendarUnitMonth]) {
case NSOrderedAscending://大于
if ([self.payDay integerValue] < day) {
//获取下个月日期
nextMonth = [self.gregorian dateByAddingUnit:NSCalendarUnitMonth value:1 toDate:[self.calendar today] options:0];
month = [self.gregorian component:NSCalendarUnitMonth fromDate:nextMonth];
//获取还款日
NSDate *newDate = [self.dateFormatter dateFromString:[NSString stringWithFormat:@"%ld-%ld-%@",(long)year,(long)month,self.payDay]];
//判断当前日期 到还款日
switch ([self.gregorian compareDate:date toDate:newDate toUnitGranularity:NSCalendarUnitDay]) {
case NSOrderedAscending:
return YES;
case NSOrderedSame:
return NO;
case NSOrderedDescending:
return NO;
}
}else{
NSDate *newDate = [self.dateFormatter dateFromString:[NSString stringWithFormat:@"%ld-%ld-%@",(long)year,(long)month,self.payDay]];
switch ([self.gregorian compareDate:newDate toDate:date toUnitGranularity:NSCalendarUnitDay]) {
case NSOrderedAscending://大于
return NO;
case NSOrderedSame://等于
return NO;
case NSOrderedDescending://小于
return YES;
}
}
case NSOrderedSame://等于
if ([self.payDay integerValue] == day) {
return NO;
}else{
return YES;
}
case NSOrderedDescending://小于
return NO;
}
}
//设置当前月与非当前月字体颜色
- (UIColor *)calendar:(FSCalendar *)calendar appearance:(FSCalendarAppearance *)appearance titleDefaultColorForDate:(NSDate *)date {
NSLog(@"%@",self.payDay);
NSInteger year;
NSInteger month;
//获取下个月日期
NSDate *nextMonth;
NSInteger day = [self.gregorian component:NSCalendarUnitDay fromDate:[self.calendar today]];
year = [self.gregorian component:NSCalendarUnitYear fromDate:[self.calendar today]];
month = [self.gregorian component:NSCalendarUnitMonth fromDate:[self.calendar today]];
//判断今天日期 和 每月日期。是大于还是等于还是小于
switch ([self.gregorian compareDate:[self.calendar today] toDate:date toUnitGranularity:NSCalendarUnitDay|NSCalendarUnitMonth]) {
case NSOrderedAscending://大于
if ([self.payDay integerValue] < day) {
//获取下个月日期
nextMonth = [self.gregorian dateByAddingUnit:NSCalendarUnitMonth value:1 toDate:[self.calendar today] options:0];
month = [self.gregorian component:NSCalendarUnitMonth fromDate:nextMonth];
//获取还款日
NSDate *newDate = [self.dateFormatter dateFromString:[NSString stringWithFormat:@"%ld-%ld-%@",(long)year,(long)month,self.payDay]];
//判断当前日期 到还款日
switch ([self.gregorian compareDate:date toDate:newDate toUnitGranularity:NSCalendarUnitDay]) {
case NSOrderedAscending:
return [UIColor blackColor];
case NSOrderedSame:
return RGBColor(153, 153, 153, 1);
case NSOrderedDescending:
return RGBColor(153, 153, 153, 1);
}
}else{
NSDate *newDate = [self.dateFormatter dateFromString:[NSString stringWithFormat:@"%ld-%ld-%@",(long)year,(long)month,self.payDay]];
//判断新日期
switch ([self.gregorian compareDate:newDate toDate:date toUnitGranularity:NSCalendarUnitDay]) {
case NSOrderedAscending://大于
return RGBColor(153, 153, 153, 1);
case NSOrderedSame://等于
return RGBColor(153, 153, 153, 1);
case NSOrderedDescending://小于
return [UIColor blackColor];
}
}
case NSOrderedSame://等于
if ([self.payDay integerValue] == day) {
return RGBColor(153, 153, 153, 1);
}else{
return [UIColor blackColor];
}
case NSOrderedDescending://小于
return RGBColor(153, 153, 153, 1);
}
}
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