Question

我正在使用tabman作为布局的标签。在我的情况下，有4个标签，每个标签包含2到3个图像。我在UICollectionView显示图片。

我的JSON：

"PhotoList": [
    {
        "ID": 0,
        "DaySeq": 1,
        "ImgPath": "Images\\1.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 1,
        "ImgPath": "Images\\2.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 2,
        "ImgPath": "Images\\3.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 2,
        "ImgPath": "Images\\4.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 3,
        "ImgPath": "Images\\.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 4,
        "ImgPath": "Images\\6.jpg"
    },
    {
        "ID": 0,
        "DaySeq": 5,
        "ImgPath": "Images\\7.jpg"
    }
]

我想在标签1中有一个UICollectionView，我想只显示那些有'DaySeq'1的图像。就像在其他标签中一样，我希望图像带有'DaySeq'2。

我在代码中尝试的是什么：

 override func viewDidLoad() {
    super.viewDidLoad()
    Alamofire.request("http://bestapp.in/api/Package/GetItineraryByPackageID/2").responseJSON(completionHandler: { (responseData) in

        if ((responseData.result.value) != nil) {

            let swiftyJSONVar = JSON(responseData.result.value!)
            if let resData = swiftyJSONVar["DayDescrList"].arrayObject,
            let resImg = swiftyJSONVar["PhotoList"].arrayObject
            {

            self.arrRes = resData as! [[String:AnyObject]]
            self.arrImg = resImg as! [[String:AnyObject]]

            self.dataSource = self
            self.bar.location = .top
            }
        }
    })
}
func viewControllers(forPageboyViewController pageboyViewController: PageboyViewController) -> [UIViewController]? {
    let storyboard = UIStoryboard(name:"Main",bundle:Bundle.main)

    var viewControllers = [UIViewController] ()
    var tabBarItems : [TabmanBar.Item] = []

    for j in 0 ..< self.arrImg.count {
        for var k in 0 ..< j {
        k += 1
        if k == self.arrImg[j]["DaySeq"] as! Int {
            let vc = storyboard.instantiateViewController(withIdentifier: "childvc") as! childvc
            vc.imgURL = self.arrImg[j]["ImgPath"] as! String
            print(self.arrImg[j]["ImgPath"] as! String)
            self.array.append(self.arrImg[j]["ImgPath"] as! String)
        }

       print(array)
    }

    }
    print(array)
    let vc = storyboard.instantiateViewController(withIdentifier: "childvc") as! childvc
    vc.array = array
    self.bar.items = tabBarItems
    return viewControllers

}

Answer 1

创建模型示例：

class ImagesModel {
  var id: Int?
  var path: String?
  var daySeq: Int?

  func parseWith(json: JSON){
     self.id = json["ID"].intValue
     self.path = json["ImgPath"].intValue
     self.daySeq = json["DaySeq"].intValue
  }
}

在您的班级中创建ImagesModel数组：
```
var imagesModelArray = [ImagesModel]()
```

只需将数组解析为此模型示例：

let photosListArray = json["PhotoList"].arrayValue
for objects in photosListArray{
   let model = ImagesModel()
   model.parseWith(json: objects)
   self.imagesModelArray.append(model)
}

之后在集合View numberOfItems方法中，你需要根据那个标签对数据进行排序。

func collectionView(_ collectionView: UICollectionView, 
     numberOfItemsInSection section: Int) -> Int {
     if tab == 0{
         return self.imagesModelArray.filter({$0.daySeq == 0})
     }else if tab == 1{
         return self.imagesModelArray.filter({$0.daySeq == 1})
     }
     ///MORE CONDITIONS
     //At the End
     return 0
}

之后在cellForItem中生成这些类型的过滤数组，并从这些过滤后的数组中获取图像。

享受斯威夫特。

也许它有帮助。如有任何疑问请发表评论

从JSON数组到UICollectionView的多个映像

1 个答案: