NSTimer暂停/恢复泄漏

Question

I wanted to be able to Pause/ Resume my NSTimer and found this below answer :

 NSDate *pauseStart, *previousFireDate; -(void) pauseTimer:(NSTimer *)timer { pauseStart = [[NSDate dateWithTimeIntervalSinceNow:0] retain]; previousFireDate = [[timer fireDate] retain]; [timer setFireDate:[NSDate distantFuture]]; } -(void) resumeTimer:(NSTimer *)timer { float pauseTime = -1*[pauseStart timeIntervalSinceNow]; [timer setFireDate:[previousFireDate initWithTimeInterval:pauseTime sinceDate:previousFireDate]]; [pauseStart release]; [previousFireDate release]; } 

which works fine. However when testing my App for Leaks, it tells me that I get a leak in here:

[timer setFireDate:[previousFireDate initWithTimeInterval:pauseTime sinceDate:previousFireDate]];

Can anyone help me? You can see from the code i used that pauseStart and previousFireDate are retained in the pauseTime method and released in the resumeTimer method.

Many thanks

Sam

Answer 1

You should never call init (or any of the other methods in the same family) on an object twice. ( Here's why ). Change that line to this:

[timer setFireDate:[NSDate dateWithTimeInterval:pauseTime sinceDate:previousFireDate]];

and you'll be fine.