FXPaging is an iOS libray for doing horizontal paging. All it needs is a view and a delegate to handle page creation. It's fast and memory efficient, and should work seamlessly with any number of pages.
Copy the source files from root directory into your project. For usage example, see the FXPagingDemo project.
Generally, you initialize the FXPagingView:
pagingView.pagingDelegate = delegate;
pagingView.page = 0;then implement the delegate methods:
- (UIView *)pagingView:(FXPagingView *)pagingView viewForPage:(NSInteger)page {
// returns view for a page
}
- (NSInteger)numberOfPagesInPagingView:(FXPagingView *)pagingView {
// number of pages
}- To enable endless scrolling, set
pagingView.endless = YES;. - FXPaging keeps references to current and surrounding (previous / next) page views and releases them once they are no longer visible to the user. When that happens, delegates receive
pagingView:didRemoveViewForPage:message so they can do additional cleanup (like remove reference to that view owner). - Since views are kept only when needed, a subsequent calls to
pagingView:viewForPage:could be made. If you'd like to persist views across pages, make sure that method returns the same view instance for the particular page, and don't do any cleanup inpagingView:didRemoveViewForPage. Beware of memory usage when dealing with large number of pages. - If you change number of pages after the initialization, call
pagingView.reloadPagesto make the change visible. pagingView.reloadPageswill also release and redraw the currently visible page so you might want to call that if you want to provide a different view for a current page.