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UIScrollView with 3 images

/ Published in: Objective C
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1. This example is to make a horizontal image slider with 3 images for iPad.
2. To fix the orientation to horizontal only, modify project-Info.plist -supported interface orientations
3. The scrollView is added to view in code, there is no need to visually create a scrollView in the UIBuilder interface.

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  1. //
  2. //  SimpleScrollViewViewController.h
  3. //  SimpleScrollView
  4. //
  5. //  Created by Terrence Tee on 3/28/11.
  6. //  Copyright 2011 __MyCompanyName__. All rights reserved.
  7. //
  8.  
  9. #import <UIKit/UIKit.h>
  10.  
  11. @interface SimpleScrollViewViewController : UIViewController {
  12. 	IBOutlet UIScrollView *scrollView;
  13. }
  14.  
  15. @property (nonatomic, retain) IBOutlet UIScrollView *scrollView;
  16.  
  17. @end
  18.  
  19.  
  20. //
  21. //  SimpleScrollViewViewController.m
  22. //  SimpleScrollView
  23. //
  24. //  Created by Terrence Tee on 3/28/11.
  25. //  Copyright 2011 __MyCompanyName__. All rights reserved.
  26. //
  27.  
  28. #import "SimpleScrollViewViewController.h"
  29.  
  30. @implementation SimpleScrollViewViewController
  31.  
  32. @synthesize scrollView;
  33.  
  34. /*
  35. // The designated initializer. Override to perform setup that is required before the view is loaded.
  36. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
  37.     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
  38.     if (self) {
  39.         // Custom initialization
  40.     }
  41.     return self;
  42. }
  43. */
  44.  
  45. /*
  46. // Implement loadView to create a view hierarchy programmatically, without using a nib.
  47. - (void)loadView {
  48. }
  49. */
  50.  
  51.  
  52.  
  53. // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
  54. - (void)viewDidLoad {
  55.     [super viewDidLoad];
  56.  
  57. 	// Create a UIImage to hold Info.png
  58.     UIImage *image1 = [UIImage imageNamed:@"WELCOME.PNG"];
  59.     UIImage *image2 = [UIImage imageNamed:@"SLIDER.PNG"];	
  60. 	UIImage *image3 = [UIImage imageNamed:@"RESULT_BLUE.PNG"];	
  61.  
  62. 	NSArray *images = [[NSArray alloc] initWithObjects:image1,image2,image3,nil];
  63.     object
  64. 	// Now create a UIScrollView to hold the UIImageViews
  65.     scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0,0,1024,768)];
  66.  
  67. 	scrollView.pagingEnabled = YES;
  68.  
  69. 	[scrollView setIndicatorStyle:UIScrollViewIndicatorStyleWhite];
  70.  
  71.     int numberOfViews = 3;
  72. 	for (int i = 0; i < numberOfViews; i++) {
  73. 		CGFloat xOrigin = i * 1024;
  74. 		UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin,0,1024,768)]; 
  75. 		[imageView setImage:[images objectAtIndex:i]];
  76. 		[scrollView addSubview:imageView];
  77. 		[imageView release];
  78. 	}
  79.  
  80.     // Set the contentSize equal to the size of the UIImageView
  81.     // scrollView.contentSize = imageView.scrollview.size;
  82. 	scrollView.contentSize = CGSizeMake(numberOfViews * 1024, 768);
  83.  
  84.  
  85. 	// Finally, add the UIScrollView to the controller's view
  86.     [self.view addSubview:scrollView];	
  87. }
  88.  
  89. @end

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