223 lines
7.7 KiB
C
223 lines
7.7 KiB
C
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// JXCategoryView.h
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// UI系列测试
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//
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// Created by jiaxin on 2018/3/15.
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// Copyright © 2018年 jiaxin. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import "JXCategoryBaseCell.h"
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#import "JXCategoryBaseCellModel.h"
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#import "JXCategoryCollectionView.h"
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#import "JXCategoryViewDefines.h"
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@class JXCategoryBaseView;
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@protocol JXCategoryViewListContainer <NSObject>
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- (void)setDefaultSelectedIndex:(NSInteger)index;
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- (UIScrollView *)contentScrollView;
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- (void)reloadData;
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- (void)didClickSelectedItemAtIndex:(NSInteger)index;
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@end
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@protocol JXCategoryViewDelegate <NSObject>
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@optional
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//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。
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/**
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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。
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@param categoryView categoryView对象
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@param index 选中的index
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*/
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- (void)categoryView:(JXCategoryBaseView *)categoryView didSelectedItemAtIndex:(NSInteger)index;
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/**
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点击选中的情况才会调用该方法
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@param categoryView categoryView对象
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@param index 选中的index
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*/
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- (void)categoryView:(JXCategoryBaseView *)categoryView didClickSelectedItemAtIndex:(NSInteger)index;
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/**
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滚动选中的情况才会调用该方法
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@param categoryView categoryView对象
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@param index 选中的index
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*/
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- (void)categoryView:(JXCategoryBaseView *)categoryView didScrollSelectedItemAtIndex:(NSInteger)index;
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/**
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控制能否点击Item
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@param categoryView categoryView对象
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@param index 准备点击的index
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@return 能否点击
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*/
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- (BOOL)categoryView:(JXCategoryBaseView *)categoryView canClickItemAtIndex:(NSInteger)index;
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/**
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正在滚动中的回调
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@param categoryView categoryView对象
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@param leftIndex 正在滚动中，相对位置处于左边的index
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@param rightIndex 正在滚动中，相对位置处于右边的index
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@param ratio 从左往右计算的百分比
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*/
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- (void)categoryView:(JXCategoryBaseView *)categoryView scrollingFromLeftIndex:(NSInteger)leftIndex toRightIndex:(NSInteger)rightIndex ratio:(CGFloat)ratio;
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@end
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@interface JXCategoryBaseView : UIView
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@property (nonatomic, strong, readonly) JXCategoryCollectionView *collectionView;
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@property (nonatomic, strong) NSArray <JXCategoryBaseCellModel *> *dataSource;
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@property (nonatomic, weak) id<JXCategoryViewDelegate> delegate;
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/**
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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。
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*/
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@property (nonatomic, weak) id<JXCategoryViewListContainer> listContainer;
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/**
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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。
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*/
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@property (nonatomic, strong) UIScrollView *contentScrollView;
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@property (nonatomic, assign) NSInteger defaultSelectedIndex; //修改初始化的时候默认选择的index
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@property (nonatomic, assign, readonly) NSInteger selectedIndex;
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@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
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@property (nonatomic, assign) CGFloat contentEdgeInsetLeft; //整体内容的左边距，默认JXCategoryViewAutomaticDimension（等于cellSpacing）
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@property (nonatomic, assign) CGFloat contentEdgeInsetRight; //整体内容的右边距，默认JXCategoryViewAutomaticDimension（等于cellSpacing）
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@property (nonatomic, assign) CGFloat cellWidth; //默认JXCategoryViewAutomaticDimension
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@property (nonatomic, assign) CGFloat cellWidthIncrement; //cell宽度补偿。默认：0
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@property (nonatomic, assign) CGFloat cellSpacing; //cell之间的间距，默认20
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@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。
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//cell宽度是否缩放
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@property (nonatomic, assign, getter=isCellWidthZoomEnabled) BOOL cellWidthZoomEnabled; //默认为NO
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@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
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@property (nonatomic, assign) CGFloat cellWidthZoomScale; //默认1.2，cellWidthZoomEnabled为YES才生效
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@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）
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@property (nonatomic, assign) NSTimeInterval selectedAnimationDuration; //cell选中动画的时间。默认0.25
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/**
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选中目标index的item
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@param index 目标index
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*/
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- (void)selectItemAtIndex:(NSInteger)index;
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/**
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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。
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*/
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- (void)reloadData;
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/**
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重新配置categoryView但是不需要reload listContainer。特殊情况是该方法。
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*/
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- (void)reloadDataWithoutListContainer;
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/**
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刷新指定的index的cell
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内部会触发`- (void)refreshCellModel:(JXCategoryBaseCellModel *)cellModel index:(NSInteger)index`方法进行cellModel刷新
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@param index 指定cell的index
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*/
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- (void)reloadCellAtIndex:(NSInteger)index;
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@end
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@interface JXCategoryBaseView (UISubclassingBaseHooks)
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/**
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获取目标cell当前的frame，反应当前真实的frame受到cellWidthSelectedZoomScale的影响。
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*/
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- (CGRect)getTargetCellFrame:(NSInteger)targetIndex;
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/**
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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。
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*/
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- (CGRect)getTargetSelectedCellFrame:(NSInteger)targetIndex selectedType:(JXCategoryCellSelectedType)selectedType;
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- (void)initializeData NS_REQUIRES_SUPER;
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- (void)initializeViews NS_REQUIRES_SUPER;
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/**
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reloadData方法调用，重新生成数据源赋值到self.dataSource
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*/
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- (void)refreshDataSource;
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/**
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reloadData方法调用，根据数据源重新刷新状态；
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*/
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- (void)refreshState NS_REQUIRES_SUPER;
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/**
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选中某个item时，刷新将要选中与取消选中的cellModel
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@param selectedCellModel 将要选中的cellModel
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@param unselectedCellModel 取消选中的cellModel
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*/
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- (void)refreshSelectedCellModel:(JXCategoryBaseCellModel *)selectedCellModel unselectedCellModel:(JXCategoryBaseCellModel *)unselectedCellModel NS_REQUIRES_SUPER;
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/**
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关联的contentScrollView的contentOffset发生了改变
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@param contentOffset 偏移量
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*/
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- (void)contentOffsetOfContentScrollViewDidChanged:(CGPoint)contentOffset NS_REQUIRES_SUPER;
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/**
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选中某一个item的时候调用，该方法用于子类重载。
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如果外部要选中某个index，请使用`- (void)selectItemAtIndex:(NSUInteger)index;`
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@param index 选中的index
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@param selectedType JXCategoryCellSelectedType
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@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。
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*/
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- (BOOL)selectCellAtIndex:(NSInteger)index selectedType:(JXCategoryCellSelectedType)selectedType NS_REQUIRES_SUPER;
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/**
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reloadData时，返回每个cell的宽度
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@param index 目标index
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@return cellWidth
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*/
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- (CGFloat)preferredCellWidthAtIndex:(NSInteger)index;
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/**
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返回自定义cell的class
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@return cell class
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*/
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- (Class)preferredCellClass;
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/**
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refreshState时调用，重置cellModel的状态
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@param cellModel 待重置的cellModel
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@param index cellModel在数组中的index
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*/
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- (void)refreshCellModel:(JXCategoryBaseCellModel *)cellModel index:(NSInteger)index NS_REQUIRES_SUPER;
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@end
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