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Editorial Team
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Asked: 2026-05-24T12:34:38+00:00

Having inherited a project from an Outsourced development company, I’ve been asked to modify

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Having inherited a project from an Outsourced development company, I’ve been asked to modify the application and add some features.

Being a bit of a perfectionist (but still relatively new) I’m trying to eliminate Warnings from the Project when I compile.

I’m getting this error

Unused variable ‘timer’ at the end of a function

Which is setting a refresh button back to enabled after the timeout.

How can I rework this so that I don’t get the unused (I can’t comment it out, because it’s actually doing what it’s supposed to by resetting the state after the timer elapses)..

-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    //lots of previous code
    NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(enableRefresh) userInfo:nil repeats:NO];
}
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1 Answer

  1. Editorial Team

    Just remove the assignment and have it read:

    [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(enableRefresh) userInfo:nil repeats:NO];

    Without the NSTimer *timer =.

    Apparently the pointer to the timer object just isn’t needed because it simply does what it is supposed to do right away. Or am I missing something?

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