fanli_zhihong/YouHuiProject/YouHui/Mine/ViewController/LFWSimilarGo...

//
//  LFWSimilarGoodsController.m
//  YouHuiProject
//
//  Created by 小花 on 2018/2/2.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "LFWSimilarGoodsController.h"
#import "LFWGoodCollectionCell.h"
#import "LFWGoodDetailViewController.h"

static NSString *cellID = @"LFWGoodCollectionCell";
@interface LFWSimilarGoodsController ()<UICollectionViewDelegate,UICollectionViewDataSource>
{
  
}
@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, strong) NSMutableArray *goodsArr;

@end

@implementation LFWSimilarGoodsController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self configNavigationBar];
    [self configCollectionView];
    [self loadCategoryGoodsList];
}



- (void)configNavigationBar {
    self.view.backgroundColor = [UIColor whiteColor];
    [self.navigationBar setNavTitle:@"相似推荐"];
    self.navigationBar.showNavigationBarBottomLine = YES;
    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 {
    
    
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
    CGFloat width = (SCREEN_WIDTH-5)/2;
    CGFloat height = width + 102;
    flowLayout.itemSize = CGSizeMake(width, height);
    flowLayout.minimumLineSpacing = 5;
    flowLayout.minimumInteritemSpacing = 0;
    flowLayout.headerReferenceSize = CGSizeMake(0, 0);
    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight) collectionViewLayout:flowLayout];
    [self.collectionView registerClass:[LFWGoodCollectionCell class] forCellWithReuseIdentifier:cellID];
    self.collectionView.backgroundColor = [UIColor YHColorWithHex:0xf6f6f6];
    self.collectionView.showsVerticalScrollIndicator = NO;
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    
    [self.view addSubview: self.collectionView];
    
}

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



/**
 加载下部商品列表
 */
- (void)loadCategoryGoodsList {
    NSDictionary *para = @{@"goods_id":self.goods_id};
    [LFWHttp post:SimilarGoods params:para success:^(id json) {
       
        NSArray *list = [NSArray yy_modelArrayWithClass:[LFWChildGoodModel class] json:json];
        [self.goodsArr addObjectsFromArray:list];
        [self.collectionView reloadData];
        if (self.goodsArr.count == 0) {
            [SVProgressHUD showInfoWithStatus:@"暂无数据~"];
        }
        
    } failure:^(NSError *error) {
        [SVProgressHUD showInfoWithStatus:@"暂无数据~"];
    }];
}





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

- (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
{
    LFWGoodCollectionCell *cell = [self.collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
    LFWChildGoodModel *model = self.goodsArr[indexPath.row];
    cell.model = model;
    return cell;
}




- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    LFWChildGoodModel *model = self.goodsArr[indexPath.row];
    //详情
    LFWGoodDetailViewController *detailVC = [[LFWGoodDetailViewController alloc] init];
    detailVC.goods_id = model.goods_id;
    [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