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我正在尝试将自定义 UIViews（使用 Core Plot 绘制的图形）添加为 iCarousel 中的元素，但我没有看到正在绘制的图形。这是我的头文件：

@interface MTViewController : UIViewController <iCarouselDataSource, iCarouselDelegate,    

CPTBarPlotDataSource, CPTBarPlotDelegate>
@property (strong, nonatomic) IBOutlet iCarousel *aCarousel;
@property (strong, nonatomic) IBOutlet UILabel *label;
@property (nonatomic) BOOL wrap;
@property (strong, nonatomic) IBOutlet CPTGraphHostingView *graphView;

@property (nonatomic, retain) NSMutableArray *data;
@property (strong, nonatomic) NSMutableArray *animals;

@property (nonatomic, retain) CPTXYGraph *graph;
@property (strong, nonatomic) NSMutableArray *graphs;
@property (strong, nonatomic) NSMutableArray *descriptions;

@end

实现文件是：

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

        //set up carousel data
        wrap = NO;

        self.graphs = [NSMutableArray arrayWithObjects: self.graphView,nil];
    }

    return self;
}

- (void)viewDidLoad
{
    aCarousel.type = iCarouselTypeCoverFlow2;
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [self setACarousel:nil];
    [self setLabel:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

#pragma - mark iCarousel Delegate

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

- (NSUInteger)numberOfVisibleItemsInCarousel:(iCarousel *)carousel
{
    // limit the number of item views loaded concurrently (for performance)
    return 1;
}

- (CPTGraphHostingView*)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(CPTGraphHostingView *)view
{
    // create a numbered view
//    view = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[animals objectAtIndex:index]]];
//    return view;

    CGSize size = self.graphView.frame.size;
    float width = size.width;
    CPTGraphHostingView *currentGraph ;
    for (int i = 0; i < self.graphs.count; i++) {
        CGRect frame;
        frame.origin.x = width * i;
        frame.origin.y = 0;
        frame.size = size;

        currentGraph = [graphs objectAtIndex:i];
        currentGraph.frame = frame;
        [self generateBarPlot:frame];
    }
    return currentGraph;
}

- (NSUInteger)numberOfPlaceholdersInCarousel:(iCarousel *)carousel
{
    return 1;
}

- (CGFloat)carouselItemWidth:(iCarousel *)carousel
{
    // usually this should be slightly wider than the item views
    return 240;
}

- (BOOL)carouselShouldWrap:(iCarousel *)carousel
{
    return self.wrap;
}

- (void)carouselDidScroll:(iCarousel *)carousel
{
    //[label setText:[NSString stringWithFormat:@"%@", [descriptions objectAtIndex:carousel.currentItemIndex]]];
    [label setText:[NSString stringWithFormat:@"Testing"]];
}

....接着是生成图形的方法

任何帮助将不胜感激。

谢谢阅读。

4

1 回答 1

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I solved it by casting the Custom View to UIView.

于 2012-09-15T22:01:54.093 回答