UIDatePicker 自定义，循环滑动控件

// // CycleScrollView.h // DatePickerScroll // // Created by lance on 14/12/8. // Copyright (c) 2014年 Lance. All rights reserved. // #import <UIKit/UIKit.h> @protocol CycleScrollViewDataSource; @protocol CycleScrollViewDelegate; @interface CycleScrollView : UIView <UIScrollViewDelegate> @property (nonatomic, strong, readonly) UIScrollView *scrollView; /** * 当前行 */ @property (nonatomic, assign) NSInteger index; @property (nonatomic, assign) id<CycleScrollViewDelegate> delegate; @property (nonatomic, assign) id<CycleScrollViewDataSource> dataSource; /** * 重新加载数据 */ - (void)reloadData; @end @protocol CycleScrollViewDataSource <NSObject> @required /** * rows 行数 * * @param cycleScrollView CycleScrollView * * @return 行数 */ - (NSInteger)numberOfRowsInCycleScrollView:(CycleScrollView *)cycleScrollView; /** * 行内容 * * @param cycleScrollView CycleScrollView * @param index 行坐标 * * @return UIView */ - (UIView *)cycleScrollView:(CycleScrollView *)cycleScrollView viewForRowAtIndex:(NSInteger)index; @end @protocol CycleScrollViewDelegate <NSObject> @optional /** * 当前选中，回调 * * @param cycleScrollView CycleScrollView * @param index 行坐标 */ - (void)cycleScrollView:(CycleScrollView *)cycleScrollView didSelectedAtIndex:(NSInteger)index; @end