Scroll Lazy Image Load for iOS

Create a controller that implements ScrollLazyloadViewController.

In addition, the following classes must be implemented:

1. Model class named ClsImgs
2. UIView class named LazyloadView
3. NSObject class named ImageDownloader

Implement ImageLazyLoadDelegate and create the properties included in ScrollLazyloadViewController.h :

@interface ScrollLazyloadViewController : UIViewController 

Modify objClsImgs.strURL in -(void)loadScrollImages to point to your images.

-(void)loadScrollImages function will add all objects of ClsImgs to Array and then It will set UIScrollView using -(void)setImageScrollView function.

In -(void)setImageScrollView, you can edit width and height of LazyLoadView using xPos += 68; and [scrollView setContentSize:CGSizeMake(xPos, 62)]; where 68 and 62 is width and height respectively.

For this you should have to change in your LazyLoadView.xib file accordingly in width or height.

ImageDownloader.h/m are used to download image using NSURLConnection. where we are passing objClsImgs.strURL for NSURLRequest in NSURLConnection.

- (void)loadImages checks for each image, if it is downloaded or pending.

If Images are not downloaded then It will call - (void)startIconDownload:(ClsImgs *)pClsImages forImgTag:(NSInteger)pImgTag.

After images are downloaded, - (void)appImageDidLoad:(NSInteger)pImgTag is called - use that for post load operations.