HI i'm tring to create photogallery with two scrollviews one for horizontal scrolling between images and second for zooming images.
scrolling between images works fine but i'm not able to zoom image into second scrollView.
mainScrollView named VcLicences
VcLicences.h
#import <UIKit/UIKit.h>
@interface VcLicences : UIViewController <UIScrollViewDelegate>{
IBOutlet UIScrollView* scrollView;
IBOutlet UIPageControl* pageControl;
BOOL pageControlIsChangingPage;
}
@property (nonatomic, retain) UIView *scrollView;
@property (nonatomic, retain) UIPageControl* pageControl;
/* for pageControl */
- (IBAction)changePage:(id)sender;
/* internal */
- (void)setupPage;
@end
VcLicences.m
#import "VcLicences.h"
#import "VcImageZoomView.h"
@implementation VcLicences
@synthesize scrollView;
@synthesize pageControl;
- (void)setupPage
{
scrollView.delegate = self;
[self.scrollView setBackgroundColor:[UIColor whiteColor]];
scrollView.indicatorStyle = UIScrollViewIndicatorStyleBlack;
scrollView.clipsToBounds = YES;
scrollView.scrollEnabled = YES;
scrollView.pagingEnabled = YES;
scrollView.multipleTouchEnabled = NO;
NSUInteger nim = 0;
CGFloat cx = 0;
NSArray *licence = [NSArray arrayWithObjects:@"zl1.jpg", @"zl2.jpg", @"zl3.jpg", @"dph.jpg", @"or.jpg", nil];
for (nim=0; nim < [licence count]; nim++)
{
VcImageZoomView *imageZoom = [[VcImageZoomView alloc] initWithNibName:@"VcImageZoomView" bundle:nil];
[imageZoom.view setFrame:CGRectMake(cx, 0, 320, 332)];
[imageZoom setMyImage:[licence objectAtIndex:nim]];
[scrollView addSubview:imageZoom.view];
[imageZoom release];
cx += scrollView.frame.size.width;
}
self.pageControl.numberOfPages = nim;
[scrollView setContentSize:CGSizeMake(cx, [scrollView bounds].size.height)];
}
#pragma mark UIScrollViewDelegate stuff
- (void)scrollViewDidScroll:(UIScrollView *)_scrollView
{
if (pageControlIsChangingPage)
{
return;
}
CGFloat pageWidth = _scrollView.frame.size.width;
int page = floor((_scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
pageControl.currentPage = page;
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)_scrollView
{
pageControlIsChangingPage = NO;
}
- (IBAction)changePage:(id)sender
{
CGRect frame = scrollView.frame;
frame.origin.x = frame.size.width * pageControl.currentPage;
frame.origin.y = 0;
[scrollView scrollRectToVisible:frame animated:YES];
pageControlIsChangingPage = YES;
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
self.navigationItem.title = @"CZECHMAT's licenses";
[self setupPage];
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)viewDidUnload
{
//[scrollView release];
//[pageControl release];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
//return (interfaceOrientation == UIInterfaceOrientationPortrait);
return YES;
}
@end
second ScrollView for zooming images named VcImageZoomView
VcImageZoomView.h
#import <UIKit/UIKit.h>
@interface VcImageZoomView : UIViewController <UIScrollViewDelegate>{
IBOutlet UIScrollView *scroll;
UIImageView *image;
}
@property (nonatomic, retain) UIScrollView *scroll;
-(void)setMyImage:(NSString *) imageName;
@end
VcImageZoomView.m
#import "VcImageZoomView.h"
@implementation VcImageZoomView
@synthesize scroll;
-(void)setMyImage:(NSString *) imageName;
{
NSLog(@"%@", imageName);
image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]];
float scaleWidth = scroll.frame.size.width / image.frame.size.width;
float scaleHeight = scroll.frame.size.height / image.frame.size.height;
float scale = scaleWidth < scaleHeight ? scaleWidth : scaleHeight;
NSLog(@"%f", scale);
[scroll addSubview:image];
scroll.minimumZoomScale = scale;
scroll.maximumZoomScale = 1.0;
scroll.delegate = self;
[scroll setZoomScale:scroll.minimumZoomScale];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
return image;
}
@end
thx for way
