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我試圖使用圖像數組實現頁面控制和滾動視圖,出於某種原因,當滑動到下一頁時,圖像正在轉移。它幾乎看起來像圖像對於滾動視圖來說太大了,但是使它們變小似乎並不奏效。有沒有辦法讓ScrollView不垂直滾動?見下面的代碼。圖像大小不能與頁面控制和滾動視圖一起使用?
SSViewController.h
#import <UIKit/UIKit.h>
@interface SSViewController : UIViewController <UIScrollViewDelegate>
@property (strong, nonatomic) IBOutlet UIScrollView *scrollView;
@property (strong, nonatomic) IBOutlet UIPageControl *pageControl;
@property (nonatomic, strong) NSArray *imageArray;
SSViewController.m
-(void)viewDidAppear:(BOOL)animated
{
imageArray = [[NSArray alloc] initWithObjects:@"first.png", @"second.png", nil];
for (int i = 0; i < [imageArray count]; i++) {
//We'll create an imageView object in every 'page' of our scrollView.
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame];
imageView.image = [UIImage imageNamed:[imageArray objectAtIndex:i]];
size:imageView.clipsToBounds = YES;
imageView.contentMode = UIViewContentModeScaleAspectFill;
[self.scrollView addSubview:imageView];
}
//Set the content size of our scrollview according to the total width of our imageView objects.
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * [imageArray count], scrollView.frame.size.height);
}
- (void)scrollViewDidScroll:(UIScrollView *)sender
{
// Update the page when more than 50% of the previous/next page is visible
CGFloat pageWidth = self.scrollView.frame.size.width;
int page = floor((self.scrollView.contentOffset.x - pageWidth/2)/pageWidth) + 1;
self.pageControl.currentPage = page;
self.scrollView.contentOffset = CGPointMake(self.scrollView.contentOffset.x, 0);
}
將代碼移到viewWillAppear(請參閱上面編輯的代碼),但我仍然有同樣的問題。 –
當你設置圖像到你的imageView添加這兩行後縮放圖像到imageView框架大小:imageView.clipsToBounds = YES; imageView.contentMode = UIViewContentModeScaleAspectFill; – edzio27
添加了這兩行(參見上面的代碼),沒有工作:( –