SwiftProject/MvpGoods/推荐/controller/YMListViewCo...

//
//  YMListViewController.swift
//  MvpGoods
//
//  Created by 小花 on 2019/4/17.
//  Copyright © 2019 MVP. All rights reserved.
//

import UIKit
import ObjectMapper
import MJRefresh
class YMListViewController: YMBaseViewController {

    var KGoodsCell = "KGoodsCell"
    
    var page = 1
    var id: Int!
    var name: String?
    var collectionView: UICollectionView?
    var dataArr = [YMMainGoodModel]()
    
    var requestType: Int?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = UIColor.white
        self.title = name
        self.view.makeLoading(offY: navBarHeight)
        configCollectionView()
        loadGoodsData()
        
    }
    
    func loadGoodsData() {
        
        //为1时加载大分类下数据
        if self.requestType == 1 {
            let url = BASE_URL + "/api/v2/goods/stockTopCategoryList"
            let para: [String: Any] = ["page":self.page,
                                       "category_id":self.id ?? 0,
                                       "sort":1,
                                       "is_has_coupon":1,
                                       "stype":"0"]
            
            NetWorkTool.postRequest(url: url, param: para, success: { (json) in
                let items = json["rst"]?["data"]["list"].arrayObject
                
                for item in items ?? [] {
                    let model = Mapper<YMMainGoodModel>().map(JSON: item as! [String : Any])
                    self.dataArr.append(model ?? YMMainGoodModel())
                }
                self.view.dismissLoading()
                self.view.addSubview(self.collectionView!)
                self.collectionView?.reloadData()
                self.collectionView?.mj_footer.endRefreshing()
            }) { (error) in
                
            }
        }else {
            let url = BASE_URL + "/api/v2/goods/stocklistByCategoryId"
            let para: [String: Any] = ["page":self.page,
                                       "category_id":self.id,
                                       "sort":1,
                                       "is_has_coupon":1,
                                       "stype":"0"]
            
            NetWorkTool.postRequest(url: url, param: para, success: { (json) in
                let items = json["rst"]?["data"].arrayObject
                
                for item in items ?? [] {
                    let model = Mapper<YMMainGoodModel>().map(JSON: item as! [String : Any])
                    self.dataArr.append(model ?? YMMainGoodModel())
                }
                self.view.addSubview(self.collectionView!)
                self.view.dismissLoading()
                self.collectionView?.reloadData()
                self.collectionView?.mj_footer.endRefreshing()
            }) { (error) in
                self.view.dismissLoading()
            }
        }
        
    }
    
    
    
    

    func configCollectionView() {
        let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: SCREENW, height: SCREENH-navHeight), collectionViewLayout:UICollectionViewFlowLayout())
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.backgroundColor = UIColor.gloadGrayColor()
        collectionView.showsVerticalScrollIndicator = false
    
        collectionView.register(YMMainGoodCollectionCell.self, forCellWithReuseIdentifier: KGoodsCell)
        
        self.collectionView = collectionView
        
        let footer = MJRefreshAutoNormalFooter()
        footer.setRefreshingTarget(self, refreshingAction: #selector(self.loadMoreData))
        collectionView.mj_footer = footer
       
    }
    @objc func loadMoreData() {
        self.page+=1
        loadGoodsData()
    }
    
    

}

extension YMListViewController: UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.dataArr.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: KGoodsCell, for: indexPath) as! YMMainGoodCollectionCell
        cell.model = self.dataArr[indexPath.row]
        
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return CGSize(width: SCREEN_WIDTH, height: fitSize(x: 135))
    }
    
    //最小 item 间距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
        
        return 0;
    }
    
    //最小行间距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
        
        return 5;
        
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let detail = YMDetailViewController()
        detail.goodModel = self.dataArr[indexPath.row]
        self.navigationController?.pushViewController(detail, animated: true)
    }
    
}