An extension of iOS UIScrollView that allows scrolling of multiple pages, like mobile Safari tab viewer.
HGPageScrollView uses a similar methodology to UITableView. It defines both a dataSource and a delegate, which its client can implement. At the very least HGPageScrollView expects its dataSource to provide HGPageViews to display.
Like UITableView, HGPageScrollView provides a way to improve performance by reusing pages. It maintains a queue of pages that the data source has marked for reuse. A page is marked for reuse by assigning a value to its reuseIdentifier.
- iOS 4.3 or later (Sample project was created with Xcode 3.2.6, iOS SDK 4.3 GM Seed)
Import HGPageScrollView folder into your project.
In your ViewController's initialization code, e.g. in viewDidLoad, instantiate HGPageScrollView from its associated NIB file, as follows:
HGPageScrollView *pageScrollView = [[[NSBundle mainBundle] loadNibNamed:@"HGPageScrollView" owner:self options:nil] objectAtIndex:0];
[self.view addSubview:pageScrollView];
Declare your view controller as HGPageScrollViewDataSource and optionally as HGPageScrollViewDelegate implement at the very least the required method in this protocol: pageScrollView:viewForPageAtIndex:
You can extend HGPageView by deriving from it, or as shown in the sample project, define your custom view.xib and set it's top level item to be HGPageView class. Then simply load your view using NSBundle's loadFromNib:owner:options. Make sure to define a reuseIdentifier for your view in order to improve performance.
- Does not support landscape orientation
HGPageScrollView is released under MIT License.
Please report bugs/issues to help improve this code.
Any suggestions and/or code to help improve this source will be much appreciated.
Thanks!