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- //
- // JXCategoryView.h
- // UI系列测试
- //
- // Created by jiaxin on 2018/3/15.
- // Copyright © 2018年 jiaxin. All rights reserved.
- //
- #import <UIKit/UIKit.h>
- #import "JXCategoryBaseCell.h"
- #import "JXCategoryBaseCellModel.h"
- #import "JXCategoryCollectionView.h"
- #import "JXCategoryViewDefines.h"
- @class JXCategoryBaseView;
- @protocol JXCategoryViewListContainer <NSObject>
- - (void)setDefaultSelectedIndex:(NSInteger)index;
- - (UIScrollView *)contentScrollView;
- - (void)reloadData;
- - (void)didClickSelectedItemAtIndex:(NSInteger)index;
- @end
- @protocol JXCategoryViewDelegate <NSObject>
- @optional
- //为什么会把选中代理分为三个,因为有时候只关心点击选中的,有时候只关心滚动选中的,有时候只关心选中。所以具体情况,使用对应方法。
- /**
- 点击选中或者滚动选中都会调用该方法。适用于只关心选中事件,不关心具体是点击还是滚动选中的。
- @param categoryView categoryView对象
- @param index 选中的index
- */
- - (void)categoryView:(JXCategoryBaseView *)categoryView didSelectedItemAtIndex:(NSInteger)index;
- /**
- 点击选中的情况才会调用该方法
- @param categoryView categoryView对象
- @param index 选中的index
- */
- - (void)categoryView:(JXCategoryBaseView *)categoryView didClickSelectedItemAtIndex:(NSInteger)index;
- /**
- 滚动选中的情况才会调用该方法
- @param categoryView categoryView对象
- @param index 选中的index
- */
- - (void)categoryView:(JXCategoryBaseView *)categoryView didScrollSelectedItemAtIndex:(NSInteger)index;
- /**
- 控制能否点击Item
- @param categoryView categoryView对象
- @param index 准备点击的index
- @return 能否点击
- */
- - (BOOL)categoryView:(JXCategoryBaseView *)categoryView canClickItemAtIndex:(NSInteger)index;
- /**
- 正在滚动中的回调
- @param categoryView categoryView对象
- @param leftIndex 正在滚动中,相对位置处于左边的index
- @param rightIndex 正在滚动中,相对位置处于右边的index
- @param ratio 从左往右计算的百分比
- */
- - (void)categoryView:(JXCategoryBaseView *)categoryView scrollingFromLeftIndex:(NSInteger)leftIndex toRightIndex:(NSInteger)rightIndex ratio:(CGFloat)ratio;
- @end
- @interface JXCategoryBaseView : UIView
- @property (nonatomic, strong, readonly) JXCategoryCollectionView *collectionView;
- @property (nonatomic, strong) NSArray <JXCategoryBaseCellModel *> *dataSource;
- @property (nonatomic, weak) id<JXCategoryViewDelegate> delegate;
- /**
- 高封装度的列表容器,使用该类可以让列表拥有完成的生命周期、自动同步defaultSelectedIndex、自动调用reloadData。
- */
- @property (nonatomic, weak) id<JXCategoryViewListContainer> listContainer;
- /**
- 推荐使用封装度更高的listContainer属性。如果使用contentScrollView请参考`LoadDataListCustomViewController`使用示例。
- */
- @property (nonatomic, strong) UIScrollView *contentScrollView;
- @property (nonatomic, assign) NSInteger defaultSelectedIndex; //修改初始化的时候默认选择的index
- @property (nonatomic, assign, readonly) NSInteger selectedIndex;
- @property (nonatomic, assign, getter=isContentScrollViewClickTransitionAnimationEnabled) BOOL contentScrollViewClickTransitionAnimationEnabled; //点击cell进行contentScrollView切换时是否需要动画。默认为YES
- @property (nonatomic, assign) CGFloat contentEdgeInsetLeft; //整体内容的左边距,默认JXCategoryViewAutomaticDimension(等于cellSpacing)
- @property (nonatomic, assign) CGFloat contentEdgeInsetRight; //整体内容的右边距,默认JXCategoryViewAutomaticDimension(等于cellSpacing)
- @property (nonatomic, assign) CGFloat cellWidth; //默认JXCategoryViewAutomaticDimension
- @property (nonatomic, assign) CGFloat cellWidthIncrement; //cell宽度补偿。默认:0
- @property (nonatomic, assign) CGFloat cellSpacing; //cell之间的间距,默认20
- @property (nonatomic, assign, getter=isAverageCellSpacingEnabled) BOOL averageCellSpacingEnabled; //当collectionView.contentSize.width小于JXCategoryBaseView的宽度,是否将cellSpacing均分。默认为YES。
- //cell宽度是否缩放
- @property (nonatomic, assign, getter=isCellWidthZoomEnabled) BOOL cellWidthZoomEnabled; //默认为NO
- @property (nonatomic, assign, getter=isCellWidthZoomScrollGradientEnabled) BOOL cellWidthZoomScrollGradientEnabled; //手势滚动过程中,是否需要更新cell的宽度。默认为YES
- @property (nonatomic, assign) CGFloat cellWidthZoomScale; //默认1.2,cellWidthZoomEnabled为YES才生效
- @property (nonatomic, assign, getter=isSelectedAnimationEnabled) BOOL selectedAnimationEnabled; //是否开启点击或代码选中动画。默认为NO。自定义的cell选中动画需要自己实现。(仅点击或调用selectItemAtIndex选中才有效,滚动选中无效)
- @property (nonatomic, assign) NSTimeInterval selectedAnimationDuration; //cell选中动画的时间。默认0.25
- /**
- 选中目标index的item
- @param index 目标index
- */
- - (void)selectItemAtIndex:(NSInteger)index;
- /**
- 初始化的时候无需调用。比如页面初始化之后,根据网络接口异步回调回来数据,重新配置categoryView,需要调用该方法进行刷新。
- */
- - (void)reloadData;
- /**
- 重新配置categoryView但是不需要reload listContainer。特殊情况是该方法。
- */
- - (void)reloadDataWithoutListContainer;
- /**
- 刷新指定的index的cell
- 内部会触发`- (void)refreshCellModel:(JXCategoryBaseCellModel *)cellModel index:(NSInteger)index`方法进行cellModel刷新
- @param index 指定cell的index
- */
- - (void)reloadCellAtIndex:(NSInteger)index;
- @end
- @interface JXCategoryBaseView (UISubclassingBaseHooks)
- /**
- 获取目标cell当前的frame,反应当前真实的frame受到cellWidthSelectedZoomScale的影响。
- */
- - (CGRect)getTargetCellFrame:(NSInteger)targetIndex;
- /**
- 获取目标cell的选中时的frame,其他cell的状态都当做普通状态处理。
- */
- - (CGRect)getTargetSelectedCellFrame:(NSInteger)targetIndex selectedType:(JXCategoryCellSelectedType)selectedType;
- - (void)initializeData NS_REQUIRES_SUPER;
- - (void)initializeViews NS_REQUIRES_SUPER;
- /**
- reloadData方法调用,重新生成数据源赋值到self.dataSource
- */
- - (void)refreshDataSource;
- /**
- reloadData方法调用,根据数据源重新刷新状态;
- */
- - (void)refreshState NS_REQUIRES_SUPER;
- /**
- 选中某个item时,刷新将要选中与取消选中的cellModel
- @param selectedCellModel 将要选中的cellModel
- @param unselectedCellModel 取消选中的cellModel
- */
- - (void)refreshSelectedCellModel:(JXCategoryBaseCellModel *)selectedCellModel unselectedCellModel:(JXCategoryBaseCellModel *)unselectedCellModel NS_REQUIRES_SUPER;
- /**
- 关联的contentScrollView的contentOffset发生了改变
- @param contentOffset 偏移量
- */
- - (void)contentOffsetOfContentScrollViewDidChanged:(CGPoint)contentOffset NS_REQUIRES_SUPER;
- /**
- 选中某一个item的时候调用,该方法用于子类重载。
- 如果外部要选中某个index,请使用`- (void)selectItemAtIndex:(NSUInteger)index;`
- @param index 选中的index
- @param selectedType JXCategoryCellSelectedType
- @return 返回值为NO,表示触发内部某些判断(点击了同一个cell),子类无需后续操作。
- */
- - (BOOL)selectCellAtIndex:(NSInteger)index selectedType:(JXCategoryCellSelectedType)selectedType NS_REQUIRES_SUPER;
- /**
- reloadData时,返回每个cell的宽度
- @param index 目标index
- @return cellWidth
- */
- - (CGFloat)preferredCellWidthAtIndex:(NSInteger)index;
- /**
- 返回自定义cell的class
- @return cell class
- */
- - (Class)preferredCellClass;
- /**
- refreshState时调用,重置cellModel的状态
- @param cellModel 待重置的cellModel
- @param index cellModel在数组中的index
- */
- - (void)refreshCellModel:(JXCategoryBaseCellModel *)cellModel index:(NSInteger)index NS_REQUIRES_SUPER;
- @end
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