阵列结果存储在firebase数据库中并显示在集合视图中

Question

是否可以将数组结果（包含图像URL和食物名称）存储到firebase数据库中，然后从firebase数据库中检索并显示在集合视图中？如果是，如何实现？

由于无法在集合视图中显示图像URL和食物名称，因此我尝试使用其他解决方案来解决此问题。

Answer 1

根据您的要求，尝试进行此操作以将数据插入Firebase中。这只是参考代码。

func temp() {
        var arrTemp : [[String : Any]] = [[String : Any]]()

        for index in 0...3 {
            print("index :: \(index)")
            let dictTemp = [ "foodName" : "Abcd","imgUrl" : "https://"] as [String : Any]
            arrTemp.append(dictTemp)
        }

        let dictDetails  = [
            "uniqueId" : UUID().uuidString,
            "arrList" : arrTemp] as [String : Any]

        print("dictDetails :: \(dictDetails)")

        self.insertDateInFirebase(dictDetails) { (success) in
            print(success)
        }
    }

    func insertDateInFirebase(_ dictRecipeInfo : [String : Any], completionHandler:@escaping DBcompletionHandler) {
        if let currentUser = Auth.auth().currentUser {

            Database.database().reference().child("TableName").child(currentUser.uid).child(dictRecipeInfo["uniqueId"] as! String).setValue(dictRecipeInfo) {
                (error:Error?, ref:DatabaseReference) in

                if let error = error {
                    print("Error :: \(error.localizedDescription)")
                    completionHandler(false)
                }
                else {
                    completionHandler(true)
                }
            }
        }
        else {
            completionHandler(false)
        }
    }

要从Firebase检索数据：

func retrieveData() {
         if let currentUser = Auth.auth().currentUser {
             let dataBaseRefExeRoutine = Database.database().reference().child("TableName").child(currentUser.uid)

             dataBaseRefExeRoutine.observeSingleEvent(of: .value, with:{ (snapshot) in

                 for snap in snapshot.children {
                     let objSnap = snap as! DataSnapshot

                    var arrMeals = [[String : Any]]()

                    //get meal item array (array with key 0,1 etc..)
                    if let arrMealItems1 = objSnap.childSnapshot(forPath: "uniqueId").value as? NSArray {
                        for obj in arrMealItems1 {
                            if let dict = obj as? [String:Any] {
                                arrMeals.append(dict)
                            }
                        }
                    }
                 }
             }) { (error) in
                 print("Error :: \(error.localizedDescription)")
             }
         }
     }