根据传参出现筛选collectionView

        根据传入的一个字典和视图参数初始化一个collectionView，你只要把你想创建生成的collectionView需要的参数通过一个方法传入，并通过点击事件产生下拉，就可得到collectionView，并能通过点击确定返回你所选的item。

初始化：

self.flowView = [[FlowView alloc]initWithFrame:CGRectMake(0, 0, ScreenWidth, ScreenHeight)];

- (void)setCollectionViewWithModel:(NSDictionary *)model

collectionViewOriginY:(CGFloat)originY

lineCount:(int)lineCount

itemHeight:(CGFloat)itemHeight

itemDistance:(CGFloat)itemDistance

itemCornerRadius:(CGFloat)itemCornerRadius

itemBorderWidth:(CGFloat)itemBorderWidth

itemTextFontSize:(CGFloat)fontSize

itemBorderColor:(UIColor *)itemBorderColor

itemTextColor:(UIColor *)itemTextColor

selectedColor:(UIColor *)itemSelectedColor

unselectedColor:(UIColor *)itemUnselectedColor

headerViewHeight:(CGFloat)headerViewHeight

footerViewHeight:(CGFloat)footerViewHeight

certainBtnHeight:(CGFloat)certainBtnHeight

certainBtnBackgroundColor:(UIColor *)certainBtnBackgroundColor

certainBtnTextLabelColor:(UIColor *)certainBtnTextLabelColor;

点击事件，让flowView下拉展示

- (IBAction)click:(id)sender{

[self.flowView pushDown];

}

通过选择返回的item组成的数组，由数组组成

[self.flowView setReturnSelected:^(NSMutableArray *array) {

NSLog(@"%@",array);

}];

效果图

打印台展示

github地址