icarousel没有出现在ios7上

Question

我想在我的项目中使用icarousel。我从github下载了icarousel。当我添加icarousel它没有出现。可能是什么原因？

这是我的代码：

PhotoPreview.h

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

@interface PhotoPreview : UIViewController <iCarouselDataSource,iCarouselDelegate>

@property (weak, nonatomic) iCarousel *carousel;

@end

PhotoPreview.m

#import "PhotoPreview.h"

@interface PhotoPreview (){
    NSMutableArray *items;
}

@end

@implementation PhotoPreview

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

- (void)viewDidLoad
{
    [super viewDidLoad];
    _carousel.type = iCarouselTypeCoverFlow2;
    [self.view addSubview:_carousel];
}

-(void)viewWillAppear:(BOOL)animated{
    items = [[NSMutableArray alloc] init];
    for (int i = 0; i < 100; i++)
    {
        [items addObject:@(i)];
    }
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}

- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
    NSLog(@"%d",items.count);
    return 5;
}

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
{
    UILabel *label = nil;
    if (view == nil)
    {
        view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200.0f, 200.0f)];
        ((UIImageView *)view).image = [UIImage imageNamed:@"page.png"];
        view.contentMode = UIViewContentModeCenter;

        label = [[UILabel alloc] initWithFrame:view.bounds];
        label.backgroundColor = [UIColor clearColor];
        label.textAlignment = NSTextAlignmentCenter;
        label.font = [label.font fontWithSize:50];
        label.tag = 1;
        [view addSubview:label];
    }
    else
    {
        label = (UILabel *)[view viewWithTag:1];
    }
    label.text = @"AAA";
    return view;
}

- (CGFloat)carousel:(iCarousel *)carousel valueForOption:(iCarouselOption)option withDefault:(CGFloat)value
{
    if (option == iCarouselOptionSpacing)
    {
        return value * 1.1f;
    }
    return value;
}

@end

Answer 1

我几天前探索过它，因为我记得这部分是一个IBOutlet连接到一个视图，其类从Interface builder设置为iCarousel。

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

此外，代表们也与IB有联系。

修改

查看代码viewDidLoad：

您还没有初始化_carousel对象，应该通过IB添加它。看看我附上的图片。

<强> IMAGE1：

<强>图像2：

<强>图像3：

另外，请查看随库提供的示例。

希望它有所帮助！