#import "MyViewController.h"

@implementation MyViewController

@synthesize scrollView1, scrollView2;

const CGFloat kScrollObjHeight = 199.0;

const CGFloat kScrollObjWidth = 280.0;

const NSUInteger kNumImages = 5;

- (void)layoutScrollImages

{

UIImageView *view = nil;

NSArray *subviews = [scrollView1 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

[scrollView1 setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [scrollView1 bounds].size.height)];

}

- (void)viewDidLoad

{

self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor];

// 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

[scrollView1 setBackgroundColor:[UIColor blackColor]];

[scrollView1 setCanCancelContentTouches:NO];

scrollView1.indicatorStyle = UIScrollViewIndicatorStyleWhite;

scrollView1.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview

scrollView1.scrollEnabled = YES;

// pagingEnabled property default is NO, if set the scroller will stop or snap at each photo

// if you want free-flowing scroll, don't set this property.

scrollView1.pagingEnabled = YES;

// load all the images from our bundle and add them to the scroll view

NSUInteger i;

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

{

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

UIImage *image = [UIImage imageNamed:imageName];

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

// setup each frame to a default height and width, it will be properly placed when we call "updateScrollList"

CGRect rect = imageView.frame;

rect.size.height = kScrollObjHeight;

rect.size.width = kScrollObjWidth;

imageView.frame = rect;

imageView.tag = i; // tag our images for later use when we place them in serial fashion

[scrollView1 addSubview:imageView];

[imageView release];

}

[self layoutScrollImages]; // now place the photos in serial layout within the scrollview

// 2. setup the scrollview for one image and add it to the view controller

//

[scrollView2 setBackgroundColor:[UIColor blackColor]];

[scrollView2 setCanCancelContentTouches:NO];

scrollView2.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview

scrollView2.indicatorStyle = UIScrollViewIndicatorStyleWhite;

UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image0.jpg"]];

[scrollView2 addSubview:imageView];

[scrollView2 setContentSize:CGSizeMake(imageView.frame.size.width, imageView.frame.size.height)];

[scrollView2 setScrollEnabled:YES];

[imageView release];

}

- (void)dealloc

{

[scrollView1 release];

[scrollView2 release];

[super dealloc];

}

- (void)didReceiveMemoryWarning

{

// invoke super's implementation to do the Right Thing, but also release the input controller since we can do that

// In practice this is unlikely to be used in this application, and it would be of little benefit,

// but the principle is the important thing.

//

[super didReceiveMemoryWarning];

}