Tutorial with progressView - Troubles

[eggapps]

Hi there, I am new on board. I have a little little problem. I succeeded in creating the application as they did it the tutorial but now my app seems to have a problem with linking the things...

/Location/Classes/../MainView.m:16: warning: 'NSTimer' may not respond to '+scheduledTimerWithTimeInterval::target:selector: userInfo:repeats:'

MY ENTIRE CODE IN Main.m looks like that

----------------------------------------

#import "MainView.h"

@implementation MainView

@synthesize timer;

- (IBAction)startLoadingBlue {
progressView.progress = 0.0;
progressLabel.text = @"Color Loading";
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateProgressBlue) userInfo:nil repeats:YES];
}

- (IBAction)startLoadingRed {
progressView.progress = 0.0;
progressLabel.text = @"Color Loading";
timer = [NSTimer scheduledTimerWithTimeInterval:1:0 target:self selector:@selector(updateProgressRed) userInfo:nil repeats:YES];

}

-(void)updateProgressBlue {
progressView.progress = progressView.progress + 0.1;
if (progressView.progress == 0.5) {
progressLabel.text = @"Applying colour";
[self applyColourBlue];
}

if (progressView.progress == 1.0) {
progressLabel.text = @"Colour Applied";
[timer invalidate];
}

}

-(void)updateProgressRed {
progressView.progress = progressView.progress + 0.1;
if (progressView.progress == 0.5) {
progressLabel.text = @"Applying colour";
[self applyColourRed];
}

if (progressView.progress == 1.0) {
progressLabel.text = @"Colour Applied";
[timer invalidate];
}

}

-(void)applyColourRed {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:5.0];
self.backgroundColor = [UIColor redColor];
[UIView commitAnimations];
}

-(void)applyColourBlue{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:5.0];
self.backgroundColor = [UIColor blueColor];
[UIView commitAnimations];

}

@end
---------------------------

Need help. thx

[eggapps]

what's wrong?

[williamsbm2000]

Originally Posted by eggapps

Hi there, I am new on board. I have a little little problem. I succeeded in creating the application as they did it the tutorial but now my app seems to have a problem with linking the things...

/Location/Classes/../MainView.m:16: warning: 'NSTimer' may not respond to '+scheduledTimerWithTimeInterval::target:selector: userInfo:repeats:'

- (IBAction)startLoadingRed {
progressView.progress = 0.0;
progressLabel.text = @"Color Loading";
timer = [NSTimer scheduledTimerWithTimeInterval:1:0 target:self selector:@selector(updateProgressRed) userInfo:nil repeats:YES];

}

The bold line should read:

timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateProgressRed) userInfo:nil repeats:YES];

You simply had a typo. The error told you the _exact_ problem, as there is no +scheduledTimerWithTimerInterval::target:self:sele ctor:userInfo:repeats: method. The extra : in there should throw a red flag.

Brian

[eggapps]

Thanks a lot for your help Brian. This is much appreciated!

However, I have another little problem. The code now seems to be fine. Only when I debug the app, I get a black screen... I might have something linked in wrong way, .xib-file..

Any idea what to do?

[williamsbm2000]

Originally Posted by eggapps

Thanks a lot for your help Brian. This is much appreciated!

However, I have another little problem. The code now seems to be fine. Only when I debug the app, I get a black screen... I might have something linked in wrong way, .xib-file..

Any idea what to do?

You are right... it is probably something wrong in the .xib. Try a clean and then build. See if you have any warnings. Usually Xcode is pretty good about letting you know if something is messed up. *usually*... other than that, maybe put some NSLog(@"I am at ... in my code."); in every function and see if it is stopping somewhere. Good luck.

Brian