Ios 滚动视图，未显示视图

此时将显示滚动视图，但任何视图均不可见。视图移动良好，页面控件工作正常。当我改变滚动条背景时，一切正常。不同颜色的景色无法显示。我不知道怎么了。谢谢你的帮助

-(void)viewDidLoad {    
[super viewDidLoad];

CGRect frame = CGRectMake(0, 215, WIDTH_OF_IPHONE, HEIGHT_OF_SCROLLER);

int numOfPhotos = 6;

scrollViewer = [[UIScrollView alloc] initWithFrame:frame];
scrollViewer.contentSize = CGSizeMake((WIDTH_OF_IPHONE*numOfPhotos), HEIGHT_OF_SCROLLER);
scrollViewer.pagingEnabled = YES;
//scrollViewer.backgroundColor = [UIColor lightGrayColor];
[scrollViewer setDelegate:self];

int i = 0;

while (i < numOfPhotos){

    CGRect frameOfView = CGRectMake((i*320), 215, 320, HEIGHT_OF_SCROLLER);
    UIView *photoFrame = [[UIView alloc] initWithFrame:frameOfView];

    if (i == 0){
        photoFrame.backgroundColor = [UIColor redColor];//colorWithPatternImage:image1];
        NSLog(@"colour was selected");
    }else if (i==1){
        photoFrame.backgroundColor = [UIColor blueColor];//colorWithPatternImage:image2];
    }else if (i==2){
        photoFrame.backgroundColor = [UIColor purpleColor];//colorWithPatternImage:image3];
    }else if (i==3){
        photoFrame.backgroundColor = [UIColor orangeColor];//colorWithPatternImage:image4];
    }else if (i==4){
        photoFrame.backgroundColor = [UIColor magentaColor];//colorWithPatternImage:image5];
    }else{
        photoFrame.backgroundColor = [UIColor greenColor];//colorWithPatternImage:image6];
    }

    [scrollViewer addSubview:photoFrame];
    //[photoFrame release];

    photoFrame = NULL;
    i++;
}
pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 0, WIDTH_OF_IPHONE, 15)];
pageControl.center = CGPointMake(scrollViewer.center.x, (208+HEIGHT_OF_SCROLLER));

[pageControl setNumberOfPages:numOfPhotos];

[pageControl addTarget:self action:@selector(pageSwiped:) forControlEvents:UIControlEventValueChanged];

[self.view addSubview:scrollViewer];
[self.view addSubview:pageControl];

我的.H文件如下所示

@interface HomePage : UIViewController <UIActionSheetDelegate, UIScrollViewDelegate> {

   IBOutlet UIScrollView *scrollViewer;
   UIPageControl *pageControl;
   BOOL pageControlUsed;

}
@end

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尝试将相框的y原点设置为0，因为它会将其放置在滚动视图的实际帧下

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如果不是的话，问题是你正在使相框为空。如果您使用的是ARC，您不必担心，因为垃圾收集器会处理它。

您的问题在这里CGRect frameOfView=CGRectMakei*320215320，滚动条的高度；我想你必须把它设为CGRect frameOfView=CGRectMakei*320，0，320，滚动条的高度；感谢工作，所以如果我在滚动视图的顶部创建一个视图，那么x和y与滚动视图相关，而不是主视图：谢谢