如何在iCarousel iphone中为不同位置的图像实现删除功能

Question

我正在使用带有轮播类型Liner Carousel的here iCarousel并实现删除功能。我可以删除轮播中的图像，当我尝试删除可见屏幕中的任何其他iomage时它被移动到旋转木马框架并删除。
我需要从原来的位置删除图像。

- (void)loadView {

    [super loadView];

    self.view.backgroundColor = [UIColor blackColor];

    carousel = [[iCarousel alloc] initWithFrame:CGRectMake(-130,300, 320, 100)];
    carousel.dataSource = self;
    carousel.delegate=self;
    carousel.type = iCarouselTypeLinear;
    carousel.scrollEnabled=YES;

    imageView=[[UIImageView alloc]initWithFrame:CGRectMake(60, 50, 200, 200)];
    [self.view addSubview:imageView];


}

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

    UIImage *image = [imagesArray objectAtIndex:index];

    UIButton *button =[UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0,0, 60, 60); 
    [button setBackgroundImage:image forState:UIControlStateNormal];
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
    [button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
    button.tag=index;
    NSLog(@"tag is %d",button.tag);

    UIButton *deleteButton=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    deleteButton.frame= CGRectMake(50, -5, 20 ,20);
    UIImage *img = [UIImage imageNamed:@"close.png"];
    [deleteButton setImage:img forState:UIControlStateNormal];
    [deleteButton addTarget:self action:@selector(deleteButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
    [button addSubview:deleteButton];

    return button;
}

-(void)deleteButtonClicked:(int )sender
{
    NSInteger currentIndex = carousel.currentItemIndex;
    [carousel removeItemAtIndex:currentIndex animated:YES];

}

请帮帮我。

Answer 1

您不应该删除carousel.currentItemIndex中的项目，因为这不是与您单击的按钮对应的项目，这只是轮播中当前居中的项目。

要获取所单击按钮的正确项目索引，请执行以下操作：

-(void)deleteButtonClicked:(id)sender
{
    //get the index of the item view containing the button that was clicked
    NSInteger index = [carousel indexOfItemViewOrSubview:sender];

    //update the data model (always do this first)
    [imagesArray removeObjectAtIndex:index];

    //remove item from carousel
    [carousel removeItemAtIndex:index animated:YES];
}

Answer 2

试试这个：

    NSInteger index = carousel.currentItemIndex;
    [carousel removeItemAtIndex:index animated:YES];
    [imagesArray removeObjectAtIndex:index];

另外添加：

- (void)awakeFromNib
{    
    if (self) {
        //set up carousel data
         wrap = NO;
    }
}

或制作你的

carousel.type = iCarouselTypeCustom;

到

carousel.type = iCarouselTypeLinear;

然后执行此操作：[carousel reloadData];