iboss-mini-ios/IBOSSmini/Report/Inventory/InventoryDetailViewController.m

//
//  InventoryDetailViewController.m
//  IBOSSmini
//
//  Created by apple on 2017/5/16.
//  Copyright © 2017年 elongtian. All rights reserved.
//

#import "InventoryDetailViewController.h"
#import "ImageModel.h"
#import "AlbumPhotoCollectionViewCell.h"

@interface InventoryDetailViewController (){
    UIScrollView *_scrollView;
}
@end

@implementation InventoryDetailViewController
/**
 viewDidLoad函数
 */
- (void)viewDidLoad {
    [super viewDidLoad];
    [self showTitle:@""];
    _detailImgList=[[NSMutableArray alloc]init];
   // [self loadData];
    [self initUI];
   
}

/**
 didReceiveMemoryWarning函数
 */
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning]; 
}
/**
 安全区视图发生变化
 */
-(void)viewSafeAreaInsetsDidChange{
    _scrollView.frame = self.view.safeAreaLayoutGuide.layoutFrame;
    [super viewSafeAreaInsetsDidChange];
}
#pragma mark - 私有函数

-(void)loadData
{
    [self startLoading];
    NSMutableDictionary *dict = [NSMutableDictionary dictionary];
    [dict setObject:@"GetNewInventoryDetailIphone" forKey:@"Action"];
    [dict setObject:[NSString stringWithFormat:@"%@",kkAccountCode]forKey:@"AccountCode"];
    [dict setObject:kkUserCode forKey:@"UserCode"];
    [dict setObject:kkUserPwd forKey:@"UserPassword"];
    [dict setObject:kkSessionKey forKey:@"SessionKey"];
    [dict setObject:_inventoryId forKeyedSubscript:@"InventoryID"];
    _downManager = [[ASIDownManager alloc] init];
    _downManager.delegate = self;
    _downManager.OnImageDown = @selector(onLoadFinish:);
    _downManager.OnImageFail = @selector(onLoadFail:);
    [_downManager postHttpRequest:ServerURL dic:dict path:nil fileName:nil];
}

/**
 隐藏进度条
 */
- (void)cancel {
    [self stopLoading];
}

/**
 加载列表数据成功回调
 
 @param sender <#sender description#>
 */
- (void)onLoadFinish:(ASIDownManager *)sender {
    // 取消进度条
    [self cancel];
    // 服务器返回数据
    RequestResultModel *resultModel = [RequestResultModel dk_modelWithJSON:sender.mWebStr];
    // 服务器返回数据状态值
    int iStatus = resultModel.status;
    // 服务器返回数据消息
    NSString *message = resultModel.message;
    // 服务器返回数据状态值正确
   if (iStatus == 0) {
       NSDictionary * infoDic = (NSDictionary *)resultModel.result;
        if(infoDic != nil)
        {
            NSArray *infoArray=[infoDic objectForKey:@"Table"];
            if(infoArray!=nil&&infoArray.count>0){
                NSDictionary *dic=[infoArray objectAtIndex:0];
                _detailModel  = [InventoryDetailModel dk_modelWithDictionary:dic];
               
                 _canSaleQuantity=_detailModel.canSaleQuantity;
                NSInteger decimalPlaces=[_detailModel.decimalPlaces integerValue];


              if(decimalPlaces!=0)
              {
                   _canSaleQuantity=[NSString stringWithFormat:[NSString stringWithFormat:@"%%.%ldf",(long)decimalPlaces ],[_detailModel.canSaleQuantity doubleValue]];
                }
                
                if(_canSaleQuantity != nil && ![_canSaleQuantity isEqualToString:@""]){
                    if(_detailModel.circulateType!=0){
                        _detailModel.boxPieceFlag = YES;
                        if(_detailModel.package != nil && ![_detailModel.package isEqualToString:@""]){
                            _detailModel.box = [NSString stringWithFormat:@"%ld",(long)floor([_detailModel.canSaleQuantity doubleValue]/[_detailModel.package doubleValue])];
                            _detailModel.piece = [NSString stringWithFormat:@"%ld",(long)floor([_detailModel.canSaleQuantity intValue]%[_detailModel.package intValue])];
                        }else{
                            _detailModel.box = @"0";
                            _detailModel.piece = @"0";
                        }
                    }else{
                        _detailModel.boxPieceFlag = NO;
                    }
                }else{
                    _detailModel.boxPieceFlag = NO;
                }
                
                
              
                _code=_detailModel.code;
                _onlyCode=_detailModel.onlyCode;
                _goodName=_detailModel.goodName;
                _brandName=_detailModel.brandName;
                _colorNumber=_detailModel.colorNumber;
                _specification= _detailModel.specification;
                _gradeName=_detailModel.gradeName;
                _wareHouseName=_detailModel.wareHouseName;
                _positionNumber=_detailModel.positionNumber;
                _box=_detailModel.box;
                _piece=_detailModel.piece;
               
                _inventoryQuantity= _detailModel.inventoryQuantity;
                _price= _detailModel.price;
               
                _boxPieceFlag=_detailModel.boxPieceFlag;
                
                _varietyName=_detailModel.varietyName;
                _package=_detailModel.package;
               if(_detailModel.photo!=nil&&_detailModel.photo.length>0)
               {
                   ImageModel *imgModel=[ImageModel new];
                   imgModel.imageName=_detailModel.photo;
                   [_detailImgList addObject:imgModel];
               }
                [self initUI];
            }
        }


        }
   
    // 服务器返回数据状态值异常
    // 服务器返回数据状态值异常
   else if(iStatus==ActionResultStatusAuthError
           ||iStatus==ActionResultStatusNoLogin
           ||iStatus==ActionResultStatusLogined ||iStatus == ActionResultStatusLoginedInvalid){
        [self showReLoginDialog:message];
    }


}
/**
 初始化ui
 */
- (void)initUI { ;
    self.navigationItem.title=@"库存商品明细";
    self.view.backgroundColor  = LineBackgroundColor;
    
    CGFloat heightRow = 30;
    CGFloat lblx = 10;
    CGFloat lbly = 3;
    CGFloat lblwidth = 70;
    CGFloat lblheight = 25;
    
    CGFloat valuex = 80;
    CGFloat valuey = 3;
    CGFloat valueheight = 25;
    
     _scrollView=[UIScrollView new];
    _scrollView.frame=self.view.bounds;
    
    [self.view addSubview:_scrollView];
    
    UIView *vTitle = [UIView new];
    [_scrollView addSubview:vTitle];
    vTitle.backgroundColor = [UIColor whiteColor];

    
    //商品编码==================
    UIView *vcode = [UIView new];
    vcode.frame=CGRectMake(0, CGRectGetMaxY(vTitle.frame), Screen_Width, heightRow);
    [vTitle addSubview:vcode];
    UILabel *lblcode=[UILabel new];
    lblcode.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblcode.text=@"商品编码：";
    lblcode.textColor = [UIColor blackColor];
    lblcode.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vcode addSubview:lblcode];
    UILabel *code = [UILabel new];
    code.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    code.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    code.text = self.code;
    [vcode addSubview:code];
    
    
    //唯一编码==================
    UIView *vonlyCode = [UIView new];
    vonlyCode.frame=CGRectMake(0, CGRectGetMaxY(vcode.frame), Screen_Width, heightRow);
    [vTitle addSubview:vonlyCode];
    UILabel *lblonlyCode=[UILabel new];
    lblonlyCode.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblonlyCode.text=@"唯一编码：";
    lblonlyCode.textColor = [UIColor blackColor];
    lblonlyCode.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vonlyCode addSubview:lblonlyCode];
    UILabel *onlyCode = [UILabel new];
    onlyCode.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    onlyCode.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    onlyCode.text = self.onlyCode;
    [vonlyCode addSubview:onlyCode];
    
    //==================
    UIView *vgoodName = [UIView new];
    vgoodName.frame=CGRectMake(0, CGRectGetMaxY(vonlyCode.frame), Screen_Width, heightRow);
    [vTitle addSubview:vgoodName];
    UILabel *lblgoodName=[UILabel new];
    lblgoodName.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblgoodName.text=@"商品名称：";
    lblgoodName.textColor = [UIColor blackColor];
    lblgoodName.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vgoodName addSubview:lblgoodName];
    UILabel *goodName = [UILabel new];
    goodName.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    goodName.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    goodName.text = self.goodName;
    [vgoodName addSubview:goodName];
    
    // 品牌==================
    UIView *vbrandName = [UIView new];
    vbrandName.frame=CGRectMake(0, CGRectGetMaxY(vgoodName.frame), Screen_Width, heightRow);
    [vTitle addSubview:vbrandName];
    UILabel *lblbrandName=[UILabel new];
    lblbrandName.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblbrandName.text=@"品        牌：";
    lblbrandName.textColor = [UIColor blackColor];
    lblbrandName.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vbrandName addSubview:lblbrandName];
    UILabel *brandName = [UILabel new];
    brandName.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    brandName.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    brandName.text = self.brandName;
    [vbrandName addSubview:brandName];

    
    //色号==================
    UIView *vcolorNumber = [UIView new];
    vcolorNumber.frame=CGRectMake(0, CGRectGetMaxY(vbrandName.frame), Screen_Width, heightRow);
    [vTitle addSubview:vcolorNumber];
    UILabel *lblcolorNumber=[UILabel new];
    lblcolorNumber.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblcolorNumber.text=@"色        号：";
    lblcolorNumber.textColor = [UIColor blackColor];
    lblcolorNumber.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vcolorNumber addSubview:lblcolorNumber];
    UILabel *colorNumber = [UILabel new];
    colorNumber.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    colorNumber.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    colorNumber.text = self.colorNumber;
    [vcolorNumber addSubview:colorNumber];
    
    //规格==================
    UIView *vspecification = [UIView new];
    vspecification.frame=CGRectMake(0, CGRectGetMaxY(vcolorNumber.frame), Screen_Width, heightRow);
    [vTitle addSubview:vspecification];
    UILabel *lblspecification=[UILabel new];
    lblspecification.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblspecification.text=@"规        格：";
    lblspecification.textColor = [UIColor blackColor];
    lblspecification.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vspecification addSubview:lblspecification];
    UILabel *specification = [UILabel new];
    specification.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    specification.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    specification.text = self.specification;
    [vspecification addSubview:specification];
    
    //==================
    UIView *vgradeName = [UIView new];
    vgradeName.frame=CGRectMake(0, CGRectGetMaxY(vspecification.frame), Screen_Width, heightRow);
    [vTitle addSubview:vgradeName];
    UILabel *lblgradeName=[UILabel new];
    lblgradeName.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblgradeName.text=@"等        级：";
    lblgradeName.textColor = [UIColor blackColor];
    lblgradeName.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vgradeName addSubview:lblgradeName];
    UILabel *gradeName = [UILabel new];
    gradeName.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    gradeName.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    gradeName.text = self.gradeName;
    [vgradeName addSubview:gradeName];
    
    //==================
    UIView *vwareHouseName = [UIView new];
    vwareHouseName.frame=CGRectMake(0, CGRectGetMaxY(vgradeName.frame), Screen_Width, heightRow);
    [vTitle addSubview:vwareHouseName];
    UILabel *lblwareHouseName=[UILabel new];
    lblwareHouseName.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblwareHouseName.text=@"库        区：";
    lblwareHouseName.textColor = [UIColor blackColor];
    lblwareHouseName.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vwareHouseName addSubview:lblwareHouseName];
    UILabel *wareHouseName = [UILabel new];
    wareHouseName.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    wareHouseName.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    wareHouseName.text = self.wareHouseName;
    [vwareHouseName addSubview:wareHouseName];

    //==================
    UIView *vpositionNumber = [UIView new];
    vpositionNumber.frame=CGRectMake(0, CGRectGetMaxY(vwareHouseName.frame), Screen_Width, heightRow);
    [vTitle addSubview:vpositionNumber];
    UILabel *lblpositionNumber=[UILabel new];
    lblpositionNumber.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblpositionNumber.text=@"仓        位：";
    lblpositionNumber.textColor = [UIColor blackColor];
    lblpositionNumber.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vpositionNumber addSubview:lblpositionNumber];
    UILabel *positionNumber = [UILabel new];
    positionNumber.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    positionNumber.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    positionNumber.text = self.positionNumber;
    [vpositionNumber addSubview:positionNumber];
    
    
    //==================
    UIView *vPackage = [UIView new];
    vPackage.frame=CGRectMake(0, CGRectGetMaxY(vpositionNumber.frame), Screen_Width, heightRow);
    [vTitle addSubview:vPackage];
    UILabel *lblPackage=[UILabel new];
    lblPackage.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblPackage.text=@"包        装：";
    lblPackage.textColor = [UIColor blackColor];
    lblPackage.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vPackage addSubview:lblPackage];
    UILabel *package = [UILabel new];
    package.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    package.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    package.text = _package;
    [vPackage addSubview:package];
    
    CGFloat height = CGRectGetMaxY(vPackage.frame);
    
    if(_boxPieceFlag){
        UIView *vBox = [UIView new];
        vBox.frame=CGRectMake(0, height, Screen_Width, heightRow);
        [vTitle addSubview:vBox];
        
        UILabel *titleBox = [[UILabel alloc] init];
        titleBox.text = @"可  售  箱:";
        titleBox.frame = CGRectMake(lblx, lbly, lblwidth, lblheight);
        titleBox.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        [vBox addSubview:titleBox];
        
        UILabel *lBox = [[UILabel alloc] init];
        lBox.frame = CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
        lBox.text =_box;
        lBox.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        [vBox addSubview:lBox];
    
        
        UIView *vPiece = [UIView new];
        vPiece.frame=CGRectMake(0, CGRectGetMaxY(vBox.frame), Screen_Width, heightRow);
        [vTitle addSubview:vPiece];
        
        UILabel *titlepic = [[UILabel alloc] init];
        titlepic.text = @"可  售  片:";
        titlepic.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        titlepic.frame = CGRectMake(lblx, lbly, lblwidth, lblheight);;
        [vPiece addSubview:titlepic];
        
        UILabel *lpic = [[UILabel alloc] init];
        lpic.frame =  CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
        lpic.text = _piece;
        lpic.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        [vPiece addSubview:lpic];
         height = CGRectGetMaxY(vPiece.frame);
    }
    
   
    UIView *vcanSaleQuantity = [UIView new];
    vcanSaleQuantity.frame=CGRectMake(0,height, Screen_Width, heightRow);
    [vTitle addSubview:vcanSaleQuantity];
    UILabel *lblcanSaleQuantity=[UILabel new];
    lblcanSaleQuantity.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblcanSaleQuantity.text=@"可  售  量：";
    lblcanSaleQuantity.textColor = [UIColor blackColor];
    lblcanSaleQuantity.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vcanSaleQuantity addSubview:lblcanSaleQuantity];
    UILabel *canSaleQuantity = [UILabel new];
    canSaleQuantity.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    canSaleQuantity.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    canSaleQuantity.text = self.canSaleQuantity;
    [vcanSaleQuantity addSubview:canSaleQuantity];
    
    UIView *vinventoryQuantity = [UIView new];
    vinventoryQuantity.frame=CGRectMake(0, CGRectGetMaxY(vcanSaleQuantity.frame), Screen_Width, heightRow);
    [vTitle addSubview:vinventoryQuantity];
    UILabel *lblinventoryQuantity=[UILabel new];
    lblinventoryQuantity.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblinventoryQuantity.text=@"结  存  量：";
    lblinventoryQuantity.textColor = [UIColor blackColor];
    lblinventoryQuantity.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vinventoryQuantity addSubview:lblinventoryQuantity];
    UILabel *inventoryQuantity = [UILabel new];
    inventoryQuantity.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    inventoryQuantity.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    inventoryQuantity.text = self.inventoryQuantity;
    [vinventoryQuantity addSubview:inventoryQuantity];
 
    UIView *vVariety = [UIView new];
    vVariety.frame=CGRectMake(0, CGRectGetMaxY(vinventoryQuantity.frame), Screen_Width, heightRow);
    [vTitle addSubview:vVariety];
    UILabel *lblVariety=[UILabel new];
    lblVariety.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
    lblVariety.text=@"品        种：";
    lblVariety.textColor = [UIColor blackColor];
    lblVariety.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    [vVariety addSubview:lblVariety];
    UILabel *variety = [UILabel new];
    variety.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
    variety.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
    variety.text = _varietyName;
    [vVariety addSubview:variety];
    //  // 20201026 jiang修改
    if (self.price!=nil) {
        UIView *vprice = [UIView new];
        vprice.frame=CGRectMake(0, CGRectGetMaxY(vVariety.frame), Screen_Width, heightRow);
        [vTitle addSubview:vprice];
        UILabel *lblprice=[UILabel new];
        lblprice.frame=CGRectMake(lblx, lbly, lblwidth, lblheight);
        lblprice.text=@"标        价：";
        lblprice.textColor = [UIColor blackColor];
        lblprice.font =  [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        [vprice addSubview:lblprice];
        UILabel *price = [UILabel new];
        price.frame=CGRectMake(valuex, valuey, Screen_Width - valuex - lblx, valueheight);
        price.font = [UIFont systemFontOfSize: LabelAndTextFontOfSize];
        price.text = self.price;
        [vprice addSubview:price];
         vTitle.frame=CGRectMake(10, 10, Screen_Width-20, CGRectGetMaxY(vprice.frame) );
    }else{
         vTitle.frame=CGRectMake(10, 10, Screen_Width-20, CGRectGetMaxY(vVariety.frame) );
    }
     
    if(_detailImgList!=nil&&_detailImgList.count>0)
    {
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
    flowLayout.itemSize = CGSizeMake(85, 85);
    flowLayout.minimumInteritemSpacing = 5;
    flowLayout.minimumLineSpacing = 10;
    
    flowLayout.scrollDirection = UICollectionViewScrollDirectionVertical;
    flowLayout.sectionInset = UIEdgeInsetsMake(7, 20, 0, 20);
    self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(20,CGRectGetMaxY(vVariety.frame), self.view.bounds.size.width-40, [self getPhotoCollectionViewHeightWithPhotos:_detailImgList]) collectionViewLayout:flowLayout];
    
    self.collectionView.dataSource=self;
    self.collectionView.delegate=self;
    self.collectionView.scrollEnabled=NO;
    self.collectionView.backgroundColor=[UIColor whiteColor];
    [self.collectionView registerClass:[AlbumPhotoCollectionViewCell class] forCellWithReuseIdentifier:@"PhotoCollectionViewCellIdentifier"];
    
    [vTitle addSubview:self.collectionView];
    vTitle.frame=CGRectMake(10,10,Screen_Width-20,CGRectGetMaxY(self.collectionView.frame)+10);
    }
    
    
    vTitle.layer.cornerRadius = CornerRadius;
    _scrollView.contentSize = CGSizeMake(self.view.frame.size.width, CGRectGetMaxY(vTitle.frame)+rectStatusHeight+rectNavHeight);
}

#pragma mark - UICollectionView回调函数
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    return _detailImgList.count;
}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    
    static NSString *PhotoCollectionViewCellIdentifier=@"PhotoCollectionViewCellIdentifier";
    AlbumPhotoCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:PhotoCollectionViewCellIdentifier forIndexPath:indexPath];
    NSArray *followInfoarray=_detailImgList;
    cell.indexPath = indexPath;
    ImageModel *image1 = [followInfoarray objectAtIndex:indexPath.row];
    NSString *imagepath=[image1 imageName];
    if(imagepath!=nil&&[imagepath length]>0){
        NSData *decodedImageData   = [[NSData alloc] initWithBase64Encoding:imagepath];
        
        UIImage *_decodedImage = [UIImage imageWithData:decodedImageData];
        [cell.photoImageView setImage:_decodedImage];
    }
    
    return cell;
};

/**
 定义每个UICollectionView 的大小
 
 @param collectionView <#collectionView description#>
 @param collectionViewLayout <#collectionViewLayout description#>
 @param indexPath <#indexPath description#>
 @return <#return value description#>
 */
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return CGSizeMake(85, 85);
}

/**
 定义每个UICollectionView 的 margin
 
 @param collectionView <#collectionView description#>
 @param collectionViewLayout <#collectionViewLayout description#>
 @param section <#section description#>
 @return <#return value description#>
 */
-(UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
    return UIEdgeInsetsMake(5, 5, 5, 5);
}

#pragma mark --UICollectionViewDelegate
/**
 UICollectionView被选中时调用的方法
 
 @param collectionView <#collectionView description#>
 @param indexPath <#indexPath description#>
 */
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    [self showImageViewerAtIndexPath:indexPath];
}

/**
 返回这个UICollectionView是否可以被选择
 
 @param collectionView <#collectionView description#>
 @param indexPath <#indexPath description#>
 @return <#return value description#>
 */
-(BOOL)collectionView:(UICollectionView *)collectionView shouldSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}

#pragma mark - 私有函数
/**
 选择图片
 
 @param indexPath <#indexPath description#>
 */
- (void)showImageViewerAtIndexPath:(NSIndexPath *)indexPath {
    AlbumPhotoCollectionViewCell *cell = (AlbumPhotoCollectionViewCell *)[self.collectionView cellForItemAtIndexPath:indexPath];
    
    NSMutableArray *imageViews = [NSMutableArray array];
    NSArray *visibleCell = [self.collectionView visibleCells];
    
    NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:@"indexPath" ascending:YES];
    
    visibleCell = [visibleCell sortedArrayUsingDescriptors:[NSArray arrayWithObject:sort]];
    
    [visibleCell enumerateObjectsUsingBlock:^(AlbumPhotoCollectionViewCell *cell, NSUInteger idx, BOOL *stop) {
        [imageViews addObject:[[cell.contentView subviews] lastObject]];
    }];
    
    XHImageViewer *imageViewer = [[XHImageViewer alloc] init];
    [imageViewer showWithImageViews:imageViews selectedView:[[cell.contentView subviews] lastObject]];
}


/**
 图片高度
 
 @param photos <#photos description#>
 @return <#return value description#>
 */
- (CGFloat)getPhotoCollectionViewHeightWithPhotos:(NSArray *)photos {
    // 上下间隔已经在frame上做了
    NSInteger row = (photos.count / 3 + (photos.count % 3 ? 1 : 0));
    return (row *85 + (row *5));
}

@end