iOS EXC_BAD_ACCESS with NSDate

[ipadzero]

Hi, I'm doing an application on my Ipad, I'm using NSDate to calculate time interval between 2 touches as below :

in MyFile.h

@interface MyFile: CCLayer {
     NSDate* startTime;
{
@end

in MyFile.m

-(id) init 
{
    .........
    startTime = [NSDate date];  //initialize
    ..........
}


-(BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
        NSTimeInterval timeInterval = [startTime timeIntervalSinceNow];
        startTime= [NSDate date];
        if(timeInterval..........)
                 return FALSE;
        
}

Program received EXC_BAD_ACCESS at:
NSTimeInterval timeInterval = [startTime timeIntervalSinceNow];

I'm not sure what I'm doing wrong here. Thanks for help.

 

[GoCubsGo]

This will sound douchy but I just saw a thread on this and I think there are already answers out there for you.
https://forums.macrumors.com/search/?searchid=24764603

 

[Menge]

startDate = [NSDate date] is an autoreleased object which means it will be destroyed at the end of the init cycle. You might want to [ retain] it.

 

[ipadzero]

startDate = [NSDate date] is an autoreleased object which means it will be destroyed at the end of the init cycle. You might want to [ retain] it.

Thanks , it worked

 

[gnasher729]

Thanks , it worked

Since you retained it, did you do the other thing you need to do?
Do you know what other thing you need to do?
If not, did you read the memory management guidelines?
If not, will you drop everything and read them?