显然我一遍又一遍地添加相同的标签。我有一个UILabel的IBOutlet,我联系了IB。我这样做是因为这是我想要的UIScrollView的位置。我还想在我的ScrollView中的每个页面上都有一个新标签,但我无法弄清楚如何做到这一点。
有关如何完成此操作的任何建议?因为我输了: - /
AnotherMadeUpViewController.h
#import <UIKit/UIKit.h>
@interface AnotherMadeUpViewController : UIViewController<UIScrollViewDelegate>
{
IBOutlet UIPageControl *pageControl;
IBOutlet UIScrollView *scroller;
IBOutlet UILabel *label;
}
@property (nonatomic,retain)IBOutlet UIPageControl *pageControl;
@property (nonatomic,retain)IBOutlet UIScrollView *scroller;
@property (nonatomic,retain)IBOutlet UILabel *label;
-(IBAction)clickPageControl:(id)sender;
@end
AnotherMadeUpViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
scroller.delegate=self;
scroller.pagingEnabled=YES;
scroller.directionalLockEnabled=YES;
scroller.showsHorizontalScrollIndicator=NO;
scroller.showsVerticalScrollIndicator=NO;
scroller.contentSize=CGSizeMake(pageControl.numberOfPages*scroller.frame.size.width, scroller.frame.size.height);
CGFloat labelOriginX = label.frame.origin.x;
CGFloat labelOriginY = label.frame.origin.y;
CGFloat scrollWidth = 0;
int pageNumber = 0;
for (int i=0; i<3; i++)
{
CGRect rect = label.frame;
rect.size.height = label.frame.size.height;
rect.size.width = label.frame.size.width;
rect.origin.x = labelOriginX + scrollWidth;
rect.origin.y = labelOriginY;
label.frame = rect;
label.text = [NSString stringWithFormat:@"%d", pageNumber];
label.textColor = [UIColor redColor];
[scroller addSubview:label];
pageNumber++;
scrollWidth += scroller.frame.size.width;
}
pageControl.numberOfPages=3;
pageControl.currentPage=0;
[self.view addSubview:scroller];
}
答案 0 :(得分:1)
你一遍又一遍地重新添加相同的UILabel实例,除了在scrollView的contentView中更改标签的位置(框架)之外没有任何其他事情发生。您必须向scrollView添加该标签的8个副本,每个副本位于不同的框架中。如果要在scrollView的背景中平铺图像,请尝试将其backgroundColor设置为使用+[UIColor colorWithPatternImage: ]
创建的图案图像