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Re: Countdown With NSTimer - Hours, Minutes, Seconds Remaining?
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Re: Countdown With NSTimer - Hours, Minutes, Seconds Remaining?


  • Subject: Re: Countdown With NSTimer - Hours, Minutes, Seconds Remaining?
  • From: Nathan Day <email@hidden>
  • Date: Thu, 11 Dec 2008 11:22:38 +1100

You need something like

NSLog(@"%.2d Hours, %.2d Minutes and - Seconds Remaining",
hoursSelected-seconds/3600, (hoursSelected*60-seconds/60)`, (hoursSelected*3600-seconds)` );



On 11/12/2008, at 11:03 , Chunk 1978 wrote:

i believe i painted myself into a corner here... i have a
NSPopUpButton with 3 items.  1 Hour, 2 Hours, 3 Hours.  each item has
respected tag numbers 1, 2 and 3.  i'm attempting to print out time
remaining but i can only get as far as displaying seconds remaining
with this:  NSLog(@"%.2d Seconds Remaining", (hoursSelected -
second));  but i would like for the log to output @"%.2d Hours, %.2d
Minutes and - Seconds Remaining";  i can't wrap my head around it,
and i fear that my trying to be as if/else statementless as possible
by using the tag numbers of the PopUp Menu is causing me problems.

-=-=-=-=-

-(int)timeMenuSelection
	{
	return [[menu selectedItem] tag];
	}

- (IBAction)startTimer:(id)sender
	{
	startTime = [NSDate timeIntervalSinceReferenceDate];

	[killTimer invalidate];
	[killTimer release];
	killTimer = nil;

	killTimer = [[NSTimer scheduledTimerWithTimeInterval:1 target:self
selector:@selector(updateTime:) userInfo:nil repeats:YES] retain];
	}

- (void)updateTime:(NSTimer *)theTimer
	{
	NSTimeInterval now = [NSDate timeIntervalSinceReferenceDate];
	NSTimeInterval interval = now - startTime;
	int second = (int)interval;

	//Tag #1 x 3600 Seconds = 3600 Seconds = 2 Hours.
	//Tag #2 x 3600 Seconds = 7200 Seconds = 2 Hours.
	//Tag #3 x 3600 Seconds = 10800 Seconds = 3 Hours.

	int hoursSelected = ([self timeMenuSelection] * 3600);

	if (second <= hoursSelected)
		{
		NSLog(@"%.2d Seconds Remaining", (hoursSelected - second));
		}
		else
		{
		NSLog(@"TIME'S UP!");
		[killTimer invalidate];
		[killTimer release];
		killTimer = nil;
		}
	}

-=-=-=-=-
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References: 
 >Countdown With NSTimer - Hours, Minutes, Seconds Remaining? (From: "Chunk 1978" <email@hidden>)

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