Comments on: Passing data between classes

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By: mako

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By: mahesh paymal

mahesh paymal — Thu, 06 May 2010 09:39:48 +0000

Sir,
Very nice tutorial. After a long Search i found this & it works like a charm. Thanks in advance
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By: Brandon

Brandon — Wed, 28 Oct 2009 04:40:30 +0000

That is what I use. And if you put a “-” dash in you get a line all the way across.

By: Ryan

Ryan — Wed, 16 Sep 2009 07:54:46 +0000

Hi, I have had no problem with the simple tutorial here, but am having one spec of trouble when implementing in a much more complicated method: here is the code I currently have:
- (void)triggerAccelerometerBall {
NSLog(@”triggerAccelerometerBall”);
UIAccelerometer *accelerometer = [UIAccelerometer sharedAccelerometer];
accelerometer.delegate = self;
accelerometer.updateInterval = kUpdateInterval;
accelerometerBallView.alpha = 1;
}
- (void)accelerometer:(UIAccelerometer *)accelerometer
didAccelerate:(UIAcceleration *)acceleration {
if (accelerometerBallColorSegment.selectedSegmentIndex == 0) {accelerometerBallColorSenderString = [NSString stringWithString:@"Yellow"];}
if (accelerometerBallColorSegment.selectedSegmentIndex == 1) {accelerometerBallColorSenderString = [NSString stringWithString:@"Orange"];}
if (accelerometerBallColorSegment.selectedSegmentIndex == 2) {accelerometerBallColorSenderString = [NSString stringWithString:@"Red"];}
if (accelerometerBallColorSegment.selectedSegmentIndex == 3) {accelerometerBallColorSenderString = [NSString stringWithString:@"Green"];}
if (accelerometerBallColorSegment.selectedSegmentIndex == 4) {accelerometerBallColorSenderString = [NSString stringWithString:@"Aqua" ];}
if (accelerometerBallColorSegment.selectedSegmentIndex == 5) {accelerometerBallColorSenderString = [NSString stringWithString:@"Black" ];}
AccelerometerBallController *accelerometerController = [[AccelerometerBallController alloc] init];
//problem…
accelerometerController.accelerometerBallColorString = accelerometerBallColorSenderString;
//the problem with these 2 lines don’t call the seperate class the same way: notice, accelerometerBallView is called upon to load the other view with my current code. Changing this causes errors anyway I do it. How do I remedy this?
[(AccelerometerBallController *)accelerometerBallView setAcceleration:acceleration];
[(AccelerometerBallController *)accelerometerBallView draw];
}
the

By: anonymous

anonymous — Tue, 14 Jul 2009 16:15:34 +0000

For someone who is just getting into programming I think that it would be easier just to use #pragma mark to organize code instead of creating new classes that would get confusing to a beginner. Here’s a nice article about #pragma mark: http://tinyurl.com/6jpwab

By: Chris

Chris — Wed, 10 Jun 2009 16:41:02 +0000

Hi Tory, give me some code plz.

By: Tori

Tori — Tue, 09 Jun 2009 18:01:52 +0000

Thanks for the tutorial.

I implemented your code in my app, I can see the variable set (through NSLog) in the login page but it is null in the account page both in the label and in NSLog.

I must be missing something