How do I use this inBetweenDate message?
I am a newbie with iphone programming. I need some help with this code.
I found what I needed here- How to Check if an NSDate occurs between two other NSDates
But I have no idea how to use this block of code.
+ (BOOL)date:(NSDate*)date isBetweenDate:(NSDate*)beginDate andDate:(NSDate*)endDate
{
if ([date compare:beginDate] == NSOrderedAscending)
return NO;
if ([date compare:endDate] == NSOrderedDescending)
return NO;
return YES;
}
I need help on how to use this function.
I created NSDATE+Helper.h and NSDATE+Helper.m
My NSDATE+Helper.h
#import <Foundation/Foundation.h>
@interface NSDATEHelper : NSDate {
}
@end
NSDATE+Helper.m
#import "NSDATE+Helper.h"
@implementation NSDATE (Helper)
+ (BOOL)date:(NSDate*)date isBetweenDate:(NSDate*)beginDate andDate:(NSDate*)endDate
{
if ([date compare:beginDate] == NSOrderedAscending)
return NO;
if ([date compare:endDate] == NSOrderedDescending)
return NO;
return YES;
}
This is not working. I am getting开发者_JS百科 some errors. Can you please help with this.
This code takes an NSDate and tells you if it is between two other dates:
NSDate * queryDate = [NSDate date];
NSDate * startDate= [NSDate date];
NSDate * endDate = [NSDate date];
// is query date between startDate and endDate
if ([NSDate date:queryDate isBetweenDate:startDate andDate:endDate])
You are adding this static message by extending NSDate, so you will need to define something like:
@interface NSDate (Helper)
+ (BOOL)date:(NSDate*)date isBetweenDate:(NSDate*)beginDate andDate:(NSDate*)endDate;
@end
In NSDate+Helper.h and an NSDate+Helper.m with the implementation.
I have written a new method for this.
- (BOOL) isBetweenDate:(NSString *)str1 andDate:(NSString *)str2 {
NSDateFormatter * dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd"];
NSDate *Date = [dateFormat dateFromString:datestr];
NSDate * Date1 = [dateFormat dateFromString:str1];
NSDate * Date2 = [dateFormat dateFromString:str2];
NSComparisonResult comparison1 = [Date compare:Date1];
NSComparisonResult comparison2 = [Date compare:Date2];
if((comparison1 == NSOrderedSame || comparison1 == NSOrderedDescending) && (comparison2==NSOrderedSame || comparison2 == NSOrderedAscending))
{
return YES;
}
return NO;
}
I was finding it difficult to use the other way. Thank you for your help.
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