- (void)viewDidLoad
{
    [super viewDidLoad];


    mainScrollView = [[UIScrollView alloc] initWithFrame:self.view.bounds];

    [self.view addSubview:mainScrollView];


    pullArray  = [NSMutableArray array];

    [HttpRequset requsetForCurrentPage:1 completon:^(NSDictionary *responseDic) {
        NSLog
 
(@"responseDic===%@",responseDic);


        NSDictionary * data = responseDic[@"data"];

        NSArray * items = data[@"items"];

        for (int i = 0; i < items.count; i ++)
        {
            PullModel * model = [[PullModel alloc] initWithJsonDic:items[i]];

            [pullArray addObject:model];

        }

        [self
 
 loadPullView];

    }];
}

-(void)loadPullView
{
    //一維陣列  分別代表左右兩列
    float colHeight[2] = {0.0,0.0};

    for (PullModel * model in pullArray)
    {
        float height = [model.height floatValue];
        float width = [model.width floatValue];

      //  NSLog(@"height=====%f,width====%f",height,width);
 


        //重新計算圖片寬高
        height =height * 150/width;

        width = 150;

        int index = colHeight[0] <= colHeight[1] ? 0 : 1;

        float x = index == 0 ? 0:160;

        float y = colHeight[index];

        UIImageView * showImageView = [[UIImageView alloc] initWithFrame:CGRectMake(x, y, width, height)];
        [showImageView sd_setImageWithURL:[NSURL URLWithString:model.picUrl]];

        NSLog(@"model.url==%@",model.picUrl);
        [mainScrollView addSubview:showImageView];

        colHeight[index] += height + 20;
    }


    float height = colHeight[0] <= colHeight[1] ? colHeight[1]:colHeight[0];

    [mainScrollView setContentSize:CGSizeMake(320, height)];
}