scrollview +重用阴影缩放

// // SBPageFlowView.h // SBFlowView // // Created by JK.Peng on 13-1-30. // Copyright (c) 2013年 njut. All rights reserved. // /*********************************************************************************** * * Created by JK.Peng on 13-1-30. * * Any comment or suggestion welcome. Referencing this project in your AboutBox/Credits is appreciated. * ***********************************************************************************/ /* *It provides a novel　picture browse. *While this page is shown, the parts of content in the adjacent Pages also can be seen 。 * *Feature: Cycle　Scroll　View * *I refereed the web：https://github.com/kejinlu/PagedFlowView *Here，I want to say thanks to the original author */ #import <UIKit/UIKit.h> typedef enum{ FlowViewOrientationHorizontal = 0, FlowViewOrientationVertical }FlowViewOrientation; typedef enum { PageDirectionPrevious = 0, PageDirectionDown } PageDirectionE; @protocol SBPageFlowViewDataSource; @protocol SBPageFlowViewDelegate; @interface SBPageFlowView : UIView<UIScrollViewDelegate>{ FlowViewOrientation _orientation; UIScrollView *_scrollView; UIImageView *_defaultImageView; //default，when no data，display default image BOOL _needsReload; CGSize _pageSize; //size of page NSInteger _pageCount; //total page count NSInteger _currentPageIndex; NSRange _visibleRange; NSMutableArray *_reusableCells; //UnseedCell NSMutableArray *_inUseCells; //using Cell CGFloat _minimumPageAlpha; //default is 1.0 CGFloat _minimumPageScale; //default is 1.0 id <SBPageFlowViewDataSource> _dataSource; id <SBPageFlowViewDelegate> _delegate; } @property (nonatomic, assign) id <SBPageFlowViewDataSource> dataSource; @property (nonatomic, assign) id <SBPageFlowViewDelegate> delegate; @property (nonatomic, retain) UIImageView *defaultImageView; @property (nonatomic, assign) FlowViewOrientation orientation; @property (nonatomic, assign, readonly) NSInteger currentPageIndex; @property (nonatomic, assign) CGFloat minimumPageAlpha; @property (nonatomic, assign) CGFloat minimumPageScale; - (void)reloadData; - (UIView *)dequeueReusableCell; - (UIView *)cellForItemAtCurrentIndex:(NSInteger)currentIndex; - (void)scrollToNextPage; @end @protocol SBPageFlowViewDelegate<NSObject> - (void)didReloadData:(UIView *)cell cellForPageAtIndex:(NSInteger)index; @optional - (void)didScrollToPage:(NSInteger)pageNumber inFlowView:(SBPageFlowView *)flowView; - (void)didSelectItemAtIndex:(NSInteger)index inFlowView:(SBPageFlowView *)flowView; @end @protocol SBPageFlowViewDataSource <NSObject> // Return the number of views. - (NSInteger)numberOfPagesInFlowView:(SBPageFlowView *)flowView; - (CGSize)sizeForPageInFlowView:(SBPageFlowView *)flowView; // Reusable cells - (UIView *)flowView:(SBPageFlowView *)flowView cellForPageAtIndex:(NSInteger)index; @end