仿照京东APP、互海通APP的侧滑搜索，感兴趣的可以参考下思路
###更新选中的cell和Header的代理方法 @protocol YiceSlidelipPickerMenuDataSource @required
- (NSInteger)menu:(YiceSlidelipPickerMenu *)menu numberOfRowsInSection:(NSInteger)section;
- (NSInteger)numberOfSectionsInMenu:(YiceSlidelipPickerMenu *)menu;
- (YiceSlidelipPickCommonModel *)menu:(YiceSlidelipPickerMenu *)menu titleForSection:(NSInteger)section; @optional
- (YiceSlidelipPickCommonModel *)menu:(YiceSlidelipPickerMenu *)menu titleForRowAtIndexPath:(NSIndexPath *)indexPath;
@end
@protocol YiceSlidelipPickerMenuDelegate
@optional
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(void)menu:(YiceSlidelipPickerMenu *)menu didSelectRowAtIndexPath:(NSIndexPath *)indexPath;//单选选中
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(void)menu:(YiceSlidelipPickerMenu *)menu didDeselectRowAtIndexPath:(NSIndexPath *)indexPath;//单选取消选中
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(void)menu:(YiceSlidelipPickerMenu *)menu clickHeaderAtIndexPath:(NSIndexPath *)indexPath;//点击header(选中全部或取消全部)
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(void)reloadDataWithMenu:(YiceSlidelipPickerMenu *)menu;
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(void)menu:(YiceSlidelipPickerMenu *)menu didSelectRowsAtIndexPaths:(NSArray<NSIndexPath >)indexPaths;//多选,这里不做延伸了，有兴趣的朋友自己拓展
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(void)menu:(YiceSlidelipPickerMenu )menu submmitSelectedIndexPaths:(NSArray<NSIndexPath>*)indexpaths; @end
###代理方法的实现参照我的demo
###代理方法的调用 1、header的标题 header.mainTitle.text = ((YiceSlidelipPickCommonModel*)[self.datasource menu:self titleForSection:indexPath.section]).text;
2.cell的内容 cell.contentString = ((YiceSlidelipPickCommonModel*)[self.datasource menu:self titleForRowAtIndexPath:indexPath]).text;