Create a global variable to store time from NSDate?

Question

I want to store the time during the run of the program to a global variable when it satisfy a if condition, So when new time is received it should be stored in the global variable,

Here in my if condition i want to check?

 NSDate* CurrentTime = [NSDate date];

// less than 30 seconds

if ([CurrentTime timeIntervalSinceDate:TimeStoredinglobalvariable] < 30.0f)
    {
        //do something
        //Reset the new time to
        TimeStoredinglobalvariable = CurrentTime;
    }

Is this way of implementing a if condition possible to implement my task? And how to get this global thing done with NSdate ?

Thank you!

Answer 1

You could create an class method with a static variable:

.h

@interface YourClass : NSObject

@property (nonatomic, strong, readonly) NSDate *storedTime;

@end

.m

#import "YourClass.h"

@interface YourClass()
    @property (nonatomic, strong, readwrite) NSDate *storedTime;
@end

@implementation YourClass

static NSDate *_storedTime;

@synthesize storedTime;

- (NSDate *)storedTime {
    if (!_storedTime) {
        _storedTime = [NSDate date];
    }

    if ([_storedTime timeIntervalSinceNow] < -30.0f) {
        //Do you stuff...
        _storedTime = [NSDate date];
    }

    return _storedTime;
}

@end