我有一個UIImageView與UIImageView爲了啓用縮放功能。與UIImageView的UIScrollView部分可見在屏幕上
現在的問題是,scrollView應顯示全屏(navigationBar除外),但它顯示了一個奇怪的「偏移量」。
由於該圖片說明超過1000個字,那就是: http://i47.tinypic.com/25pprg3.png
紅色矩形是多數民衆贊成正在顯示怪異的偏移,而圖像應採取整體看法,但事實並非如此。正如你所看到的,它正在被削減。
我試着改變框架,邊界等,但結果相同。
這裏是我的代碼:
- (void)viewDidLoad
{ [super viewDidLoad];
self.view.backgroundColor = [UIColor scrollViewTexturedBackgroundColor];
imageScrollView.bouncesZoom = YES;
imageScrollView.delegate = self;
imageScrollView.clipsToBounds = NO; // If set to yes, the image would be like the screen above
imageView = [[UIImageView alloc] init];
imageView.clipsToBounds = YES;
imageScrollView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin);
//activity indicator
UIActivityIndicatorView *activityIndicator = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge] autorelease];
activityIndicator.hidesWhenStopped = YES;
activityIndicator.hidden = NO;
activityIndicator.center = CGPointMake(self.imageView.frame.size.width /2, self.imageView.frame.size.height/2);
[activityIndicator startAnimating];
[imageView setImageWithURL:[NSURL URLWithString:tipImageString]
placeholderImage:nil options:SDWebImageProgressiveDownload
success:^(UIImage *image) { [activityIndicator stopAnimating];[activityIndicator removeFromSuperview]; }
failure:^(NSError *error) { [activityIndicator stopAnimating];[activityIndicator removeFromSuperview]; }];
[imageView addSubview:activityIndicator];
imageView.userInteractionEnabled = YES;
imageView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin);
imageView.center = [[imageScrollView window] center];
imageView.contentMode = UIViewContentModeScaleAspectFit;
[imageScrollView setContentMode:UIViewContentModeScaleAspectFit];
[imageScrollView addSubview:imageView];
imageScrollView.contentSize = self.imageView.image.size;
imageScrollView.decelerationRate = UIScrollViewDecelerationRateFast;
CGSize boundsSize = self.imageScrollView.bounds.size;
imageView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
CGRect frameToCenter = imageView.frame;
// center horizontally
if (frameToCenter.size.width < boundsSize.width)
frameToCenter.origin.x = (boundsSize.width - frameToCenter.size.width)/2;
else
frameToCenter.origin.x = 0;
// center vertically
if (frameToCenter.size.height < boundsSize.height)
frameToCenter.origin.y = (boundsSize.height - frameToCenter.size.height)/2;
else
frameToCenter.origin.y = 0;
imageView.frame = frameToCenter;
// calculate minimum scale to perfectly fit image width, and begin at that scale
float minimumScale = 0.50;//[imageScrollView frame].size.width/[imageView frame].size.width;
imageScrollView.maximumZoomScale = 5.0;
imageScrollView.minimumZoomScale = minimumScale;
imageScrollView.zoomScale = minimumScale;
[imageScrollView setContentMode:UIViewContentModeScaleAspectFit];
[imageView sizeToFit];
[imageScrollView setContentSize:CGSizeMake(imageView.frame.size.width, imageView.frame.size.height)];
}
我什麼都試過,但沒有成功!
我認爲這是與框架的東西,但我無法弄清楚什麼。
任何幫助讚賞
)。我不得不再次設置imageScrollView框架! – Phillip 2012-07-13 15:16:11