iphone - 如何使用此代码在 iCarousel 中加载多个图像？

Question

我正在使用旋转木马在 coverflow 中加载一堆图像，但我没有得到它？..最初我遇到了 Signal sigabart 问题..在我编辑了一些代码后， View 显示了......我错过了吗什么东西？...

#import "CollectionViewController.h"

@interface CollectionViewController ()
@property (nonatomic, retain) NSMutableArray *items;
@end

@implementation CollectionViewController

@synthesize carousel;
@synthesize items;




- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
 {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)dealloc
{

carousel.delegate = nil;
carousel.dataSource = nil;
[items release];

[carousel release];
[super dealloc];
}
- (void)viewDidLoad
{
[super viewDidLoad];
carousel.type = iCarouselTypeCoverFlow2;

}

- (void)viewDidUnload
{
[super viewDidUnload];

self.carousel = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

#pragma mark -
#pragma mark iCarousel methods

- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
return [items count];
}

 - (NSUInteger)numberOfVisibleItemsInCarousel:(iCarousel *)carousel
{

return 29;
}


 - (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
 {


//create new view if no view is available for recycling
if (view == nil)
{

    view = [NSArray arrayWithObjects:[UIImage imageNamed:@"gal1.jpg"],
            [UIImage imageNamed:@"gal2.jpg"],
            [UIImage imageNamed:@"gal3.jpg"],

            [UIImage imageNamed:@"gal5.jpg"],
            [UIImage imageNamed:@"gal6.jpg"],
            [UIImage imageNamed:@"gal7.jpg"],
            [UIImage imageNamed:@"gal8.jpg"],
            [UIImage imageNamed:@"gal9.jpg"],
            [UIImage imageNamed:@"gal10.jpg"],
            [UIImage imageNamed:@"gal11.jpg"],
            [UIImage imageNamed:@"gal12.jpg"],
            [UIImage imageNamed:@"gal13.jpg"],
            [UIImage imageNamed:@"gal14.jpg"],
            [UIImage imageNamed:@"gal15.jpg"],
            [UIImage imageNamed:@"gal16.jpg"],
            [UIImage imageNamed:@"gal17.jpg"],
            [UIImage imageNamed:@"gal18.jpg"],
            [UIImage imageNamed:@"gal19.jpg"],
            [UIImage imageNamed:@"gal20.jpg"],
            [UIImage imageNamed:@"gal21.jpg"],
            [UIImage imageNamed:@"gal22.jpg"],
            [UIImage imageNamed:@"gal23.jpg"],
            [UIImage imageNamed:@"gal24.jpg"],
            [UIImage imageNamed:@"gal25.jpg"],
            [UIImage imageNamed:@"gal26.jpg"],
            [UIImage imageNamed:@"gal27.jpg"],
            [UIImage imageNamed:@"gal28.jpg"],

}

else {

}

    return view;
 }


 @end

在模拟器上运行时，我只看到屏幕而不是图像？...我卡在这里了...

Answer 1

我已经这样做了。在这里试试这个:

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {

        //set up carousel data
        wrap = NO;

        self.items = [NSArray arrayWithObjects:[UIImage imageNamed:@"gal1.jpg"],
            [UIImage imageNamed:@"gal2.jpg"],
            [UIImage imageNamed:@"gal3.jpg"],
            [UIImage imageNamed:@"gal5.jpg"],
            [UIImage imageNamed:@"gal6.jpg"],
            [UIImage imageNamed:@"gal7.jpg"],
            [UIImage imageNamed:@"gal8.jpg"],
            [UIImage imageNamed:@"gal9.jpg"],
            [UIImage imageNamed:@"gal10.jpg"],
            [UIImage imageNamed:@"gal11.jpg"],
            [UIImage imageNamed:@"gal12.jpg"],
            [UIImage imageNamed:@"gal13.jpg"],
            [UIImage imageNamed:@"gal14.jpg"],
            [UIImage imageNamed:@"gal15.jpg"],
            [UIImage imageNamed:@"gal16.jpg"],
            [UIImage imageNamed:@"gal17.jpg"],
            [UIImage imageNamed:@"gal18.jpg"],
            [UIImage imageNamed:@"gal19.jpg"],
            [UIImage imageNamed:@"gal20.jpg"],
            [UIImage imageNamed:@"gal21.jpg"],
            [UIImage imageNamed:@"gal22.jpg"],
            [UIImage imageNamed:@"gal23.jpg"],
            [UIImage imageNamed:@"gal24.jpg"],
            [UIImage imageNamed:@"gal25.jpg"],
            [UIImage imageNamed:@"gal26.jpg"],
            [UIImage imageNamed:@"gal27.jpg"],
            [UIImage imageNamed:@"gal28.jpg"],nil];
}
return self;

然后在你的:

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index
{

    UIView *view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[items objectAtIndex:index]]];
    return view;
}

哦，还有一个，请编辑您的 numberOfVisibleItemsInCarousel 并将其设置为 return 7; 这样我认为它不会浪费内存。