icarousel未显示

Question

我将iCarousel添加到我的应用程序中，但它不起作用。在我的其他应用程序中，它可以正常工作。我在InterfaceBuilder中链接了视图、委托和数据源

ViewController.h

#import <UIKit/UIKit.h>
#import "TermineView.h" 
#import "iCarousel.h"


@interface ViewController : UIViewController <iCarouselDataSource, iCarouselDelegate>{

IBOutlet UIWebView *WebView;
NSURLRequest *Request;

...
}
...

@property (nonatomic, retain) IBOutlet iCarousel *carousel;


@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize carousel;


- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
carousel.type = iCarouselTypeRotary;
carousel.center = CGPointMake(160.0, 250.0);
[self.view addSubview:carousel];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

 - (void)viewDidUnload
{
[super viewDidUnload];
 self.carousel = nil;

}

#pragma mark -
#pragma mark iCarousel methods

- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
//generate 100 buttons
//normally we'd use a backing array
//as shown in the basic iOS example
//but for this example we haven't bothered
return 100;
}

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
{
UIButton *button = (UIButton *)view;
if (button == nil)
{
    //no button available to recycle, so create new one
    UIImage *image = [UIImage imageNamed:@"page.png"];
    button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [button setBackgroundImage:image forState:UIControlStateNormal];
    button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
    [button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
}

//set button label
[button setTitle:[NSString stringWithFormat:@"%i", index] forState:UIControlStateNormal];

return button;
}

#pragma mark -
#pragma mark Button tap event

- (void)buttonTapped:(UIButton *)sender
{
//get item index for button
NSInteger index = [carousel indexOfItemViewOrSubview:sender];

[[[[UIAlertView alloc] initWithTitle:@"Button Tapped"
                             message:[NSString stringWithFormat:@"You tapped button number %i", index]
                            delegate:nil
                   cancelButtonTitle:@"OK"
                   otherButtonTitles:nil] autorelease] show];
}




 @end

你知道我做错了什么吗？我看到一片空虚的景象...

Answer 1

您是否尝试过在数据源方法中设置断点，以查看它们是否被调用？

如何使用调试器检查在iCarousel视图上是否正确设置了carousel的dataSource属性？

我的猜测是dataSource没有被正确绑定，但是如果没有更多的信息就很难确定。