Scrolling Images in Image Gallery iphone

.h file

#import <UIKit/UIKit.h>

@interface ScrollingImageViewController : UIViewController {

IBOutlet UIScrollView *FirstScrollView;

}

@property (nonatomic, retain) UIView *FirstScrollView;

@end

 

.m file

 

#import “ScrollingImageViewController.h”

@implementation ScrollingImageViewController

@synthesize FirstScrollView;

const CGFloat kScrollObjHeight = 353.0;

const CGFloat kScrollObjWidth = 258.0;

const NSUInteger kNumImages = 3;

– (void)layoutScrollImages

{

UIImageView *view = nil;

NSArray *subviews = [FirstScrollView subviews];

// reposition all image subviews in a horizontal serial fashion

CGFloat curXLoc = 0;

for (view in subviews)

{

if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)

{

CGRect frame = view.frame;

frame.origin = CGPointMake(curXLoc, 0);

view.frame = frame;

curXLoc += (kScrollObjWidth);

}

}

// set the content size so it can be scrollable

[FirstScrollView setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [FirstScrollView bounds].size.height)];

}

– (void)viewDidLoad

{

 

// 1. setup the scrollview for multiple images and add it to the view controller

//

// note: the following can be done in Interface Builder, but we show this in code for clarity

[FirstScrollView setBackgroundColor:[UIColor blackColor]];

[FirstScrollView setCanCancelContentTouches:NO];

FirstScrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite;

FirstScrollView.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview

FirstScrollView.scrollEnabled = YES;

FirstScrollView.pagingEnabled = YES;

NSUInteger i;

for (i = 1; i <= kNumImages; i++)

{

NSString *imageName = [NSString stringWithFormat:@”Snap%d.jpg”, i];

UIImage *image = [UIImage imageNamed:imageName];

UIImageView *imageView = [[UIImageView alloc] initWithImage:image];

CGRect rect = imageView.frame;

rect.size.height = kScrollObjHeight;

rect.size.width = kScrollObjWidth;

imageView.frame = rect;

imageView.tag = i;

[FirstScrollView addSubview:imageView];

[imageView release];

}

[self layoutScrollImages];

}

– (void)dealloc

{

[FirstScrollView release];

[super dealloc];

}

– (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

}

@end

 

in .xib file add a scroll view with (353.0,258.0)  frame