How to pause a NSTimer? [duplicate]

Answer 1

That's very easy.

// Declare the following variables
BOOL ispaused;
NSTimer *timer;
int MainInt;

-(void)countUp {
    if (ispaused == NO) {
        MainInt +=1;
        secondField.stringValue = [NSString stringWithFormat:@"%i",MainInt];
    }
}

- (IBAction)start1Clicked:(id)sender {
    MainInt=0;
    timer=[NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(countUp) userInfo:Nil repeats:YES];
}

- (IBAction)pause1Clicked:(id)sender {
    ispaused = YES;
}

- (IBAction)resume1Clicked:(id)sender {
    ispaused = NO;
}