Question

我想使用iCarousel在视图控制器中显示多个图像。

我在NSMutableArray中列出我的所有图像 foto ，
然后我在iCarousel方法中调用了数组foto viewForItemAtIndex 。

我已经按照一些教程但仍然无法正常工作。请帮我。

这是我的.m代码

#import "TestController.h"

@interface TestController ()  <UIActionSheetDelegate>

@property (nonatomic, retain) NSMutableArray *foto;


@end


@implementation TestController


@synthesize carousel;
@synthesize foto;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        foto = [NSArray arrayWithObjects:
                     [UIImage imageNamed:@"Seleb1.jpg"],
                     [UIImage imageNamed:@"Seleb2.jpg"],
                     [UIImage imageNamed:@"Seleb3.jpg"],
                     nil];
    }
    return self;
}

- (void)dealloc
{

    carousel.delegate = nil;
    carousel.dataSource = nil;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    carousel.type = iCarouselTypeCoverFlow2;

}

- (void)viewDidUnload
{
    [super viewDidUnload];

    self.carousel = nil;
}


#pragma mark -
#pragma mark iCarousel methods

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



- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
{
    view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[foto objectAtIndex:index]]];
    return view;
}

@end

有人能帮帮我吗？我的代码出了什么问题？

更新代码

#import "TestController.h"

@interface TestController ()  

@property (nonatomic, retain) NSArray *foto;


@end


@implementation TestController


@synthesize carousel;
@synthesize foto;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        foto = [NSArray arrayWithObjects:
                @"Seleb1.jpg",
                @"Seleb2.jpg",
                @"Seleb3.jpg",
                nil];
    }
    return self;

}

- (void)dealloc
{

    carousel.delegate = nil;
    carousel.dataSource = nil;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    carousel.type = iCarouselTypeCoverFlow2;
    [carousel reloadData];
}

- (void)viewDidUnload
{
    [super viewDidUnload];

    self.carousel = nil;

}


#pragma mark -
#pragma mark iCarousel methods

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


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

    view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200.0f, 200.0f)]; // set the frame for your Image

    UIImage *image  = [UIImage imageNamed:[foto objectAtIndex:index]];
    ((UIImageView *)view).image = image;

    return view;

}

- (CGFloat)carousel:(iCarousel *)carousel valueForOption:(iCarouselOption)option          withDefault:(CGFloat)value
{
    //customize carousel display

    return value+0.1;
}

@end

Answer 1

更改此行

 view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[foto objectAtIndex:index]]];

到

原因：您已将数组定义为[UIImage imageNamed:@"Seleb1.jpg"]，因此您需要在此处直接调用

view = [[UIImageView alloc] initWithImage:[foto objectAtIndex:index]];

<强>选择-2

创建一个类似

的数组

  foto = [NSArray arrayWithObjects:
                 @"Seleb1.jpg",
                 @"Seleb2.jpg",
                 @"Seleb3.jpg",
                 nil];

并调用

 view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[foto objectAtIndex:index]]];

如果您需要

使用此

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

更新回答

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

    view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200.0f, 200.0f)]; // set the frame for your Image

          UIImage *image  = [UIImage imageNamed:[foto objectAtIndex:index]];
        ((UIImageView *)view).image = image;

        return view;

}

Answer 2

@TomKnapen：我应该在哪里设置它？如果它在故事板上，我已经已经设定好了。在TestController.h中，我也将它设置为my 代码在.h：TestController：UIViewController - Shasapo

我不确定你是如何在故事板中设置它的，但在代码中，你没有设置委托。这一行没有设置委托TestController : UIViewController <iCarouselDataSource,iCarouselDelegate>，它的作用是它使你的控制器，在这种情况下是TestController，符合iCarouselDelegate协议。您需要做的是在viewDidLoad中明确设置委托和数据源，例如，

carousel.delegate = self;

carousel.datasource = self;

2 - 首先尝试调试这些委托方法。从nimberOfItems方法开始，检查foto数组是否为零。然后在viewForItem方法中检查您返回的图像是否为nil。因为你正在使用storyboard，你的initWithNibName方法没有被调用，这就是为什么你没有初始化数组，我假设。在我看来，你的numberofitems方法返回0.尝试将断点int放入此方法并查看，或者只是添加一个NSLog语句并检查foto数组是否为零

3 - 您没有在视图中添加iCarousel视图。

我以前使用过这个框架，所以我决定包含我实现的代码片段

#pragma mark -
#pragma mark iCarousel methods

- (void)iCarouselSetup {
    self.view.backgroundColor = kAppColor;

    self.carousel = [[iCarousel alloc] initWithFrame:CGRectMake(0, calendarBar.bottom + 10, self.view.width, self.view.height)];
    [self.view addSubview:self.carousel];

    self.carousel.delegate = self;
    self.carousel.dataSource = self;
    self.carousel.type = iCarouselTypeCoverFlow;
    self.carousel.scrollEnabled = NO;
    [self.carousel scrollToItemAtIndex:2 animated:NO];

    self.currentProjectsTableview = (UITableView*)[self.carousel currentItemView]; }

- (NSInteger)numberOfItemsInCarousel:(iCarousel *)carousel {
    return 5; }

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSInteger)index reusingView:(UIView *)view {
    self.projectsTableview = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 0, 0) style:UITableViewStylePlain];
    self.projectsTableview.x = 0;
    self.projectsTableview.y = calendarBar.bottom;
    self.projectsTableview.width = [ASize screenWidth];
    self.projectsTableview.height = [ASize screenHeight] - 180;
    self.projectsTableview.contentInset = UIEdgeInsetsMake(0, 0, 100, 0);
    self.projectsTableview.backgroundColor = [UIColor fromRGB:0xF8F8F8];
    self.projectsTableview.separatorStyle = UITableViewCellSeparatorStyleNone;
    self.projectsTableview.dataSource = self;
    self.projectsTableview.delegate = self;
    self.projectsTableview.tag = tableTag++;

    return self.projectsTableview; }

- (void)carousel:(iCarousel *)carousel didSelectItemAtIndex:(NSInteger)index {
    self.carousel.scrollEnabled = NO;
    [AppDelegate getDelegate].deckController.panningMode = IIViewDeckFullViewPanning;

    [UIView animateWithDuration:0.3 animations:^{
        for (int i = 0; i < self.carousel.numberOfItems; i++)
        {
            [self.carousel itemViewAtIndex:i].transform = CGAffineTransformMakeScale( 1.1f, 1.1f);
        }
    }completion:^(BOOL finished) {
        [UIView animateWithDuration:0.2 animations:^{
            for (int i = 0; i < self.carousel.numberOfItems; i++)
            {
                [self.carousel itemViewAtIndex:i].transform = CGAffineTransformMakeScale( 1.0f, 1.0f);
                [self.carousel itemViewAtIndex:i].userInteractionEnabled = YES;
            }
        } ];
        tableMinimized = NO;
    }];

    self.currentProjectsTableview = (UITableView*)[carousel itemViewAtIndex:index]; }

- (void)carouselDidEndScrollingAnimation:(iCarousel *)carousel {
    [navButton setTitle:self.projectDates[self.carousel.currentItemIndex] forState:UIControlStateNormal]; }

Answer 3

我通过结合你所有的答案修复我的代码，谢谢你。这是我的新代码：

#import "TestController.h"

@interface TestController ()  

@property (nonatomic, retain) NSArray *foto;


@end


@implementation TestController


@synthesize carousel;
@synthesize foto;


- (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;
}
- (void)viewDidLoad
{
    carousel.delegate = self;

    carousel.dataSource = self;
   foto = [NSArray arrayWithObjects:
                   @"Seleb1.jpg",
                   @"Seleb2.jpg",
                   @"Seleb3.jpg",
                   nil];


    [super viewDidLoad];
    carousel.type = iCarouselTypeCoverFlow2;
    [carousel reloadData];


}

- (void)viewDidUnload
{
    [super viewDidUnload];

    self.carousel = nil;

}


#pragma mark -
#pragma mark iCarousel methods

- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
    NSLog(@"%lu",(unsigned long)foto.count);
    return [foto count];
}


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

    view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200.0f, 200.0f)]; // set the frame for your Image

    UIImage *image  = [UIImage imageNamed:[foto objectAtIndex:index]];
    ((UIImageView *)view).image = image;

    return view;

}

- (CGFloat)carousel:(iCarousel *)carousel valueForOption:(iCarouselOption)option          withDefault:(CGFloat)value
{
    //customize carousel display

    return value+0.1;
}

@end

非常感谢你的回答，我真的很感激：）

iCarousel不显示我的图像目标C

3 个答案: