ios - iCarousel 不会加载图像

Question

所以我尝试使用 iCarousel 以图像形式显示产品，然后用户可以简单地滚动并查看所有可用的产品。

出于某种原因，当您加载 viewcontroller 时，它根本不显示任何图像，甚至不显示轮播，它在我将它与数字 int 等一起使用时起作用。

我的代码如下:

ApparelViewController.m

#import "ApparelViewController.h"

@interface ApparelViewController ()

@property (nonatomic, strong) NSMutableArray *images;

@end

@implementation ApparelViewController

@synthesize carouselView = _carouselView;
@synthesize images = _images;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]))
    {
        //get image paths
        NSArray *imagePaths = [[NSBundle mainBundle] pathsForResourcesOfType:@"png" inDirectory:@"Products"];

        //preload images (although FXImageView can actually do this for us on the fly)
        _images = [[NSMutableArray alloc] init];
        for (NSString *path in imagePaths)
        {
            [_images addObject:[UIImage imageWithContentsOfFile:path]];
        }
    }
    return self;
}

- (void)dealloc
{
    //it's a good idea to set these to nil here to avoid
    //sending messages to a deallocated viewcontroller
    _carouselView.delegate = nil;
    _carouselView.dataSource = nil;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor colorWithRed:236/255 green:240/255 blue:241/255 alpha:1];

    // Do any additional setup after loading the view.
    _carouselView.type = iCarouselTypeRotary;
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    //free up memory by releasing subviews
    self.carouselView = nil;
}

- (NSInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
    return [_images count];
}

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSInteger)index reusingView:(UIView *)view
{
    if (view == nil)
    {
        FXImageView *imageView = [[FXImageView alloc] initWithFrame:CGRectMake(0, 0, 200.0f, 200.0f)];
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        imageView.asynchronous = YES;
        imageView.reflectionScale = 0.5f;
        imageView.reflectionAlpha = 0.25f;
        imageView.reflectionGap = 10.0f;
        imageView.shadowOffset = CGSizeMake(0.0f, 2.0f);
        imageView.shadowBlur = 5.0f;
        imageView.cornerRadius = 10.0f;
        view = imageView;
    }
    //show placeholder
    ((FXImageView *)view).processedImage = [UIImage imageNamed:@"page.png"];

    ((FXImageView *)view).image = _images[index];

    return view;
}

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

- (IBAction)goBack:(id)sender {

    NSString * storyboardName = @"Main";
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:storyboardName bundle: nil];
    UIViewController * vc = [storyboard instantiateViewControllerWithIdentifier:@"navBar"];
    [self presentViewController:vc animated:YES completion:nil];
}

@end

然后在 ApparelViewController.h 文件中，我有以下代码:

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

@interface ApparelViewController : UIViewController <iCarouselDelegate, iCarouselDelegate>

@property (strong, nonatomic) IBOutlet UIButton *backButton;
@property (strong, nonatomic) IBOutlet iCarousel *carouselView;

@end

真正令人恼火的是我以前使用过 iCarousel，但用于 Swift，所以我知道它在那里是如何工作的，但我不太了解 Obj-C!

关于如何显示图像有什么想法吗？

Answer 1

一些你可以检查的东西，

1. 检查“images”在“numberOfItemsInCarousel”中返回一个大于 0 的值，这很明显但值得检查。
2. 检查图像是否实际加载，即检查 image[index] 是否实际加载图像。
3. 我不太熟悉 FXImageView，但尝试使用 (void)setImage:(UIImage *)image; 而不是分配 @property (nonatomic, strong) UIImage *image; 。文档说 .image 实际上并没有设置图像，而是添加了效果。

如果这些都不能解决您的问题，请发表评论，我会继续寻找，祝您好运。