iCarousel问题

Question

我试图用下面的代码将一个iCarousel添加到一个现有的项目中，但是我得到了以下错误：MemberCatalog[14990:1a903] -[MainViewController carousel:viewForItemAtIndex:reusingView:]: unrecognized selector sent to instance 0xa0589b0.

在iCarousel.m中抛出错误的行是：view = [_dataSource carousel:self viewForItemAtIndex:index reusingView:[self dequeueItemView]];

任何帮助都将是非常感谢的。

carouselItems = [NSArray arrayWithObjects:
         [UIImage imageNamed:@"iLibrary+Featured_AM-RAH.png"],
         [UIImage imageNamed:@"iLibrary+Featured_CCA.png"],
         [UIImage imageNamed:@"iLibrary+Featured_GI-PA.png"],
         nil];

// Initialize and configure the carousel
    carousel = [[iCarousel alloc] initWithFrame:self.view.bounds];
    carousel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
    carousel.type = iCarouselTypeCoverFlow2;
carousel.delegate = self;
carousel.dataSource = self;

    [self.view addSubview:carousel];

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index
{
    UIImage *image = [carouselItems objectAtIndex:index];
    UIButton *button = [[[UIButton alloc] initWithFrame:CGRectMake(0, 0, image.size.width, image.size.height)] autorelease];
    [button setBackgroundImage:image forState:UIControlStateNormal];
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
    button.tag=index;
    return button;

}

Answer 1

您正在实现一个-carousel:viewForItemAtIndex:方法，但是视图需要一个-carousel:viewForItemAtIndex:reusingView:方法。

您需要用reusingView:(UIView *)view参数更新您的方法，这样就可以了。您还应该使用这个可重用的视图，而不是分配越来越多的视图，但这是另一回事。