滾動視圖子uiscrollviews的UIImageView viewForZoomingInScrollView

Question

我主要UIScrollView

mainScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 440)]; 
mainScrollView.pagingEnabled = YES; 
imageScrollView.contentSize = CGSizeMake(320 * [myImage count], 440); 

，其中包含許多子UIScrollView，每個子UIScrollView包含UIImageView

for (int i = 0; i < [myImage count]; i++) 
{ 
    imageView = [[UIImageView alloc] init]; 
    [imageView setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight]; 

    NSString *strimage = [myImage objectAtIndex:i]; 
    NSURL *imageUrl = [NSURL URLWithString:strimage]; 

    [imageView setImageWithURL:imageUrl placeholderImage:[UIImage imageNamed:@"Placeholder"]]; 

    imageView.frame = CGRectMake(0, 0, 320, 440); 

    subScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(320 * i, 0, 320, 440)]; 
    subScrollView.contentSize = 
    CGSizeMake(imageView.frame.size.width, imageView.frame.size.height); 
    subScrollView.pagingEnabled = YES; 
    subScrollView.showsHorizontalScrollIndicator = NO; 
    subScrollView.showsVerticalScrollIndicator = NO; 
    subScrollView.delegate = self; 
    subScrollView.bouncesZoom = YES; 
    subScrollView.clipsToBounds = YES; 

    subScrollView.maximumZoomScale = 3.0; 
    subScrollView.minimumZoomScale = 1.0; 
    subScrollView.zoomScale = 1.0; 

    [mainScrollView addSubview:subScrollView]; 
    [subScrollView addSubview:imageView]; 
} 

，我實現

#pragma mark UIScrollViewDelegate methods 

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView { 
    return imageView; 
} 

概率LEM是，當我在UIImageView放大，假設有3個子UIScrollView，最後的副UIScrollView可以放大UIImageView正常，但其他2，當我在它放大，但放大子UIScrollView代替UIImageView，它影響的最後一個子UIScrollView到也變焦，我做錯了什麼？

我懷疑在viewForZoomingInScrollView，它只能縮放最後UIImageView（最後一個子UIScrollView）。

預先感謝您:)

Answer 1

最後我想通了，我只需要更新我UIImageView當我在特定UIImageView 放大 - （UIView的*）viewForZoomingInScrollView：（UIScrollView的*）滾動視圖是這樣的：

#pragma mark - 
#pragma mark UIScrollViewDelegate methods 

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView { 
    for (UIImageView *iv in [scrollView subviews]) { 
     imageView = iv; 
     break; 
    } 

    return imageView; 
} 

希望它可以幫助某人，在這一點上與我鬥爭，所以你不必浪費時間:)。