yh_liangzhemai/YouHuiProject/YouHui/Classification/Controller/LZMClassifyL...

//
//  LZMClassifyListController.m
//  YouHuiProject
//
//  Created by 小花 on 2018/5/9.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "LZMClassifyListController.h"
#import "LZMGoodCollectionCell.h"
#import "LZMGoodDetailViewController.h"
#import "LZMTypeButtonHeader.h"
#import "LZMGoodDetailViewController.h"
#import "LZMChildFilterView.h"

static NSString *cellID = @"LZMGoodCollectionCell";

#define KHeaderBarHeight 80

@interface LZMClassifyListController ()
<
    UICollectionViewDelegate,
    UICollectionViewDataSource,
    JC_SelectViewDelegate,
    UICollectionViewDelegateFlowLayout
>
{
    NSInteger _page;
    NSInteger _type;
    NSInteger _is_has_coupon;
}
@property (nonatomic, strong) UICollectionView      *collectionView;
@property (nonatomic, strong) NSMutableArray        *goodsArr;
@property (nonatomic, strong) LZMChildFilterView     *filterView;
@end

@implementation LZMClassifyListController
- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self initHUD];
    [self configParam];
    [self configNavigationBar];
    [self configCollectionView];
    [self loadCategoryGoodsList:NO switchButton:nil];
}

#pragma mark - HUD

- (void)initHUD {
    [SVProgressHUD setDefaultStyle:SVProgressHUDStyleCustom];
    [SVProgressHUD setForegroundColor:[UIColor YHColorWithHex:0xff2420]];
    [SVProgressHUD setBackgroundColor:[UIColor YHColorWithHex:0xf5f4f4]];
    [SVProgressHUD show];
}


- (void)configParam {
    _page = 1;
    _type = 1; //默认请求推荐的数据
    _is_has_coupon = 0;
}

- (void)configNavigationBar {
    self.view.backgroundColor = [UIColor whiteColor];
    [self.navigationBar setNavTitle:self.name];
    
    UIButton *leftBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
    [leftBtn setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
    [leftBtn addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
    [self.navigationBar setCustomLeftButtons:@[leftBtn]];
    [self.navigationBar setShowNavigationBarBottomLine:YES];
}

- (void)configCollectionView {
    self.filterView = [[LZMChildFilterView alloc] initWithFrame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, KHeaderBarHeight) withArr:nil];
    self.filterView.delegate = self;
    [self.view addSubview:self.filterView];
    
    
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
    flowLayout.minimumLineSpacing = 5;
    flowLayout.minimumInteritemSpacing = 0;
    flowLayout.headerReferenceSize = CGSizeMake(0, 0);
    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, NavBarHeight+KHeaderBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight) collectionViewLayout:flowLayout];
    [self.collectionView registerClass:[LZMGoodCollectionCell class] forCellWithReuseIdentifier:cellID];
    self.collectionView.backgroundColor = [UIColor YHColorWithHex:0xf6f6f6];
    self.collectionView.showsVerticalScrollIndicator = NO;
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    self.collectionView.mj_footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
        [self loadMoreData];
    }];
    self.collectionView.footRefreshState = MJFooterRefreshStateNormal;
    
    [self.view addSubview: self.collectionView];
    
}

- (void)backAction {
    [self.navigationController popViewControllerAnimated:YES];
}


#pragma mark ----
#pragma mark JC_SelectViewDelegate
//仅显示优惠券
- (void)selectItme:(LZMChildFilterView *)selectView onlyTicketClick:(UIButton *)switchBtn {
    _is_has_coupon = switchBtn.selected ? 0 : 1;
    [self loadCategoryGoodsList:YES switchButton:switchBtn];
}

//上方条件选择
- (void)selectTopButton:(LZMChildFilterView *)selectView withIndex:(NSInteger)index withButtonType:(JCButtonClickType )type1{
    [self.collectionView scrollToTop];
    //价格
    if (index == 2&&type1) {
        switch (type1) {
            case JCButtonClickTypeNormal:
                //正常价格
            {
                NSLog(@"上边按钮的正常价格");
            }
                break;
            case JCButtonClickTypeUp:
                //价格升序排列
            {
                NSLog(@"上边按钮的价格升序排列");
                _type = 3;
            }
                break;
            case JCButtonClickTypeDown:
                //价格降序排列
            {
                NSLog(@"上边按钮的价格降序排列");
                _type = 4;
            }
                break;
            default:
                break;
        }
    }else if (index == 0){//综合
        
        NSLog(@"上边按钮的综合");
        _type = 1;
        
    }else if (index == 1){//销量
        
        NSLog(@"上边按钮的销量");
        _type = 2;
        
    }else{//筛选
        
        NSLog(@"上边按钮的筛选");
    }
    
    [self loadCategoryGoodsList:YES switchButton:nil];
}




/**
 上拉加载
 */
- (void)loadMoreData {
    _page++;
    [self loadCategoryGoodsList:NO switchButton:nil];
}


/**
 加载下部商品列表
 */
- (void)loadCategoryGoodsList:(BOOL)refresh switchButton:(UIButton *)switchButton{
    
    [SVProgressHUD show];
    NSDictionary *para = @{@"page":@(_page),
                           @"category_id":self.firstCategoryId,
                           @"sort":@(_type),
                           @"sub_category_id":self.cate_id,
                           @"stype":@"0",
                           @"is_has_coupon":@(_is_has_coupon)
                           };
    [LZMHttp post:StocklistByCategoryId params:para success:^(id json) {
        if (refresh) [self.goodsArr removeAllObjects];
        NSArray *list = [NSArray yy_modelArrayWithClass:[LZMChildGoodModel class] json:json[@"data"]];
        [self.goodsArr addObjectsFromArray:list];
        [self.collectionView reloadData];
        self.collectionView.footRefreshState = list.count>0 ? MJFooterRefreshStateLoadMore : MJFooterRefreshStateNoMore;
        [SVProgressHUD dismiss];
        switchButton.selected = !switchButton.selected;
    } failure:^(NSError *error) {
        [self.collectionView.mj_footer endRefreshing];
        [SVProgressHUD dismiss];
        [MBProgressHUD showMessage:@"加载失败"];
        
        
    }];
}

- (void)noMoreDataWithArray:(NSArray *)array {
    if (array.count > 0) {
        self.collectionView.footRefreshState = MJFooterRefreshStateNoMore;
    }else {
        self.collectionView.footRefreshState = MJFooterRefreshStateLoadMore;
    }
}



#pragma mark - scrollView
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    //scrollView已经有拖拽手势，直接拿到scrollView的拖拽手势
    UIPanGestureRecognizer *pan = scrollView.panGestureRecognizer;
    //获取到拖拽的速度 >0 向下拖动 <0 向上拖动
    CGFloat velocity = [pan velocityInView:scrollView].y;
    if (velocity <- 10) {
        //向上拖动，隐藏导航栏
        if (self.navigationBar.y == -NavBarHeight) {
            return;
        }
        [UIView animateWithDuration:0.15 animations:^{
            self.navigationBar.y = -NavBarHeight;
            self.filterView.y = KStatusBarHeight;
            self.collectionView.y = KStatusBarHeight + KHeaderBarHeight;
        }];
        
    }else if (velocity > 10) {
        //向下拖动，显示导航栏
        if (self.navigationBar.y == 0) {
            return;
        }
        [UIView animateWithDuration:0.15 animations:^{
            self.navigationBar.y = 0;
            self.filterView.y = NavBarHeight;
            self.collectionView.y = NavBarHeight + KHeaderBarHeight;
        }];
        
        
    }else if(velocity == 0){
        //停止拖拽
    }
}



#pragma mark ============ UICollectionView Delegate &&  DataSource ==========
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return self.goodsArr.count;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    LZMChildGoodModel *model = self.goodsArr[indexPath.row];
    CGFloat width = (SCREEN_WIDTH-5)/2;
    CGFloat height = width + 102;
    return CGSizeMake(width, height);
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
    return CGSizeMake(0, 0);
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
    return CGSizeMake(0, 0);
}


- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    LZMGoodCollectionCell *cell = [self.collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
    LZMChildGoodModel *model = self.goodsArr[indexPath.row];
    cell.model = model;
    return cell;
}


- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    
    LZMChildGoodModel *model = self.goodsArr[indexPath.row];
    LZMEventModel *evevtModel = [[LZMEventModel alloc] initWithOrigin:model.origin category_id:self.cate_id source:ListClassifyAction];
    
    //详情
    LZMGoodDetailViewController *detailVC = [[LZMGoodDetailViewController alloc] init];
    DetailRequestModel *requestModel = [[DetailRequestModel alloc] initWithChildModel:model];
    detailVC.requestModel = requestModel;
    if (self.isOtherPage) {
        LZMEventModel *evevtModel = [[LZMEventModel alloc] initWithOrigin:model.origin category_id:self.cate_id source:HomeClassifyAction];
        detailVC.eventModel = evevtModel;
    }else {
        LZMEventModel *evevtModel = [[LZMEventModel alloc] initWithOrigin:model.origin category_id:self.cate_id source:ListClassifyAction];
        detailVC.eventModel = evevtModel;
    }
    [self.navigationController pushViewController:detailVC animated:YES];
}


#pragma mark -------------
- (NSMutableArray *)goodsArr {
    if (!_goodsArr) {
        _goodsArr = [NSMutableArray array];
    }
    return _goodsArr;
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

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@end