Using Data from one View in the another view?

[marco_mn]

Hello Users,

i have implemented two viewControllers:
CoverFlowViewController and ChartViewController
now i need an UIImage from CovverFlow.... in chartViewController,
this is my ChartViewController.h:

#import <UIKit/UIKit.h>

@class RootViewController;
@class CoverFlowViewController;
@interface ChartViewController : UIViewController {
	RootViewController *rootViewController;
	CoverFlowViewController *coverFlow;
}

@property (nonatomic, retain) RootViewController *rootViewController;
@property (nonatomic, retain) CoverFlowViewController *coverFlow;

- (IBAction) goToCoverFlow;


@end

and this is the method in ChartViewController.m where i need the UIImage:

- (void)viewDidLoad {
	
	UIImage *img = coverFlow.imageView.image;
	UIImageView *imageView = [[UIImageView alloc] initWithImage:img];
	
	[self.view addSubview:imageView];
    [super viewDidLoad];
}

But here in the first line coverFlow is 0x0, why?

Could anyone help me, please?

[marco_mn]

Has no one a solution for my problem?

[iPhoneTurk]

you didnt create any CoverFlow yet.

coverFlow=[[CoverFlowViewController alloc]init];
UIImage *img = coverFlow.imageView.image;

.....

[marco_mn]

Hey,

thank you for your answer,
but now is imageView 0x0,
do you know why that is so?

Greetings Marco

[LazyCoder]

How is the designated initializer implemented in CoverFlowViewController?
Where did it get the data from?

[marco_mn]

Hey LazyCoder,

look this is the CoverFlowViewController.m where I will get
the data from:

- (IBAction)goToChart {
	UIImage *img = imageView.image;
	[rootViewController switchViews];

}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    [super viewDidLoad];
	UIButton *weiter = [UIButton buttonWithType:UIButtonTypeRoundedRect];
	weiter.frame = CGRectMake(100, 400, 120, 40);
	[weiter addTarget:self action:@selector(goToChart) forControlEvents:UIControlEventTouchUpInside];
	NSString *ansicht = @"Weiter";
	[weiter setTitle:ansicht forState:UIControlStateNormal];
	[self.view addSubview:weiter];
	// loading images into the queue
	
	loadImagesOperationQueue = [[NSOperationQueue alloc] init];
	
	NSString *imageName;
	for (int i=0; i < 10; i++) {
		imageName = [[NSString alloc] initWithFormat:@"cover_%d.jpg", i];
		imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]];
		UIImage *aktuellesImage = imageView.image;
		UIImage *scaledImage = [aktuellesImage scaleToSize:CGSizeMake(100.0f, 100.0f)];
		[(AFOpenFlowView *)self.view setImage:scaledImage forIndex:i];
		[imageName release];
		NSLog(@"%d is the index",i);
		
	}
	[(AFOpenFlowView *)self.view setNumberOfImages:10];
	
}

i need the actual picture of the imageView, you understand me?

Greetings Marco