// 正则显示时间格式一天内一周内更早
+ (NSString*) compareCurrentTime:(NSString*)str
{
NSDateFormatter*dateFormatter = [[NSDateFormatteralloc]init];
[dateFormattersetDateFormat:@"yyyyMMddHHmmss"];
NSDate*timeDate = [dateFormatterdateFromString:str];
NSDate*currentDate = [NSDatedate];
NSTimeIntervaltimeInterval = [currentDatetimeIntervalSinceDate:timeDate];
longtemp =0;
NSString*result;
// 根据当前时间获得本周还有几天
inta= [ttTableViewCellweekDayStr:str];
NSLog(@"----------+%d",a );
if((temp = timeInterval/60) <60){
if([strisEqualToString:@"0"]) {
returnnil;
}
NSString*s1= [strsubstringWithRange:NSMakeRange(8,4)];
NSMutableString* str1=[[NSMutableStringalloc]initWithString:s1];//存在堆区，可变字符串
NSLog(@"str1:%@",str1);
[str1insertString:@":"atIndex:2];//把一个字符串插入另一个字符串中的某一个位置
NSLog(@"str1:%@",str1);
result = [NSStringstringWithFormat:@"%@",str1];
}
// 如果是当天内 截取字符串 显示分钟小时
elseif((temp = temp/60) <24){
NSString*s1= [strsubstringWithRange:NSMakeRange(8,4)];
NSMutableString* str1=[[NSMutableStringalloc]initWithString:s1];//存在堆区，可变字符串
NSLog(@"str1:%@",str1);
[str1insertString:@":"atIndex:2];//把一个字符串插入另一个字符串中的某一个位置
NSLog(@"str1:%@",str1);
result = [NSStringstringWithFormat:@"%@",str1];
}
// 把截取出来的天数判断为周几
elseif((temp = temp/24)
NSDate*birthdayDate = [dateFormatterdateFromString:str];
result =[NSStringstringWithFormat:@"%@",[ttTableViewCellweekdayStringFromDate:birthdayDate]] ;
}
// 显示年月日截取字符串加.
else{
NSString*s1= [strsubstringWithRange:NSMakeRange(0,8)];
NSMutableString* str1=[[NSMutableStringalloc]initWithString:s1];//存在堆区，可变字符串
NSLog(@"str1:%@",str1);
[str1insertString:@"."atIndex:4];//把一个字符串插入另一个字符串中的某一个位置
[str1insertString:@"."atIndex:7];//把一个字符串插入另一个字符串中的某一个位置
NSLog(@"str1:%@",str1);
result = [NSStringstringWithFormat:@"%@",str1];
}
returnresult;
}
// 正则判断本周还剩余几天
+(int)weekDayStr:(NSString*)format
{
NSString*weekDayStr =nil;
NSDateComponents*comps = [[NSDateComponentsalloc]init];
NSString*str = [selfdescription];
if(str.length>=10) {
NSString*nowString = [strsubstringToIndex:10];
NSArray*array = [nowStringcomponentsSeparatedByString:@"-"];
if(array.count==0) {
array = [nowStringcomponentsSeparatedByString:@"/"];
}
if(array.count>=3) {
intyear =[[arrayobjectAtIndex:0]integerValue];
intmonth =[[arrayobjectAtIndex:1]integerValue];
intday =[[arrayobjectAtIndex:2]integerValue];
[compssetYear:year];
[compssetMonth:month];
[compssetDay:day];
}
}
NSCalendar*gregorian = [[NSCalendaralloc]
initWithCalendarIdentifier:NSGregorianCalendar];
NSDate*_date = [gregoriandateFromComponents:comps];
NSDateComponents*weekdayComponents = [gregoriancomponents:NSWeekdayCalendarUnitfromDate:_date];
intweek =[weekdayComponentsweekday];
week ++;
switch(week) {
case7:
weekDayStr =@"0";
break;
case1:
weekDayStr =@"1";
break;
case2:
weekDayStr =@"2";
break;
case3:
weekDayStr =@"3";
break;
case4:
weekDayStr =@"4";
break;
case5:
weekDayStr =@"5";
break;
case6:
weekDayStr =@"6";
break;
default:
weekDayStr =@"0";
break;
}
return[weekDayStrintValue];
}
// 正则判断为周几
+(NSString*)weekdayStringFromDate:(NSDate*)inputDate {
NSArray*weekdays = [NSArrayarrayWithObjects: [NSNullnull],@"星期天",@"星期一",@"星期二",@"星期三",@"星期四",@"星期五",@"星期六",nil];
NSCalendar*calendar = [[NSCalendaralloc]initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSTimeZone*timeZone = [[NSTimeZonealloc]initWithName:@"Asia/Shanghai"];
[calendarsetTimeZone: timeZone];
NSCalendarUnitcalendarUnit =NSCalendarUnitWeekday;
NSDateComponents*theComponents = [calendarcomponents:calendarUnitfromDate:inputDate];
return[weekdaysobjectAtIndex:theComponents.weekday];
}