Firebase Swift 3 Get List of Child in a Array

Firebase Swift 3 get list of child in a array

Try this:-

ref.child("").observe(.childAdded, with: { (snapshot) in

    var newItems = [FIRDataSnapshot]() 

    for item in snapshot.children {
        newItems.append(item as! FIRDataSnapshot)
    }

})

how can i get array from child and save in struct from firebase in swift

Solved! Thanks so much all. I could find the solution

struct User {

 let fullname: String
 let location: String
 let uid: String

 
 // i finally create a simple array
 var tripList: [Int]

    
 init(uid: String, dictionary: [String: Any]) {
    
    self.uid = uid
    self.fullname = dictionary["fullname"] as? String ?? ""
    self.location = dictionary["location"] as? String ?? ""
    
    var arrayTripsAux = [Int]()
    if let a_trips = dictionary["a_trips"] as? [String: [String:Int]]{
        
        for t in a_trips.values{
            arrayTripsAux.append(t["id"] ?? 0)
        }
        
    } else {
        arrayTripsAux.append(0)
    }
    
    // return childs in array
    self.tripList = arrayTripsAux
    

    
 }

Find Firebase Child from Array Values - xcode 8 / swift 3

Here's how you'd get started, once you have your parsed data you can use different methods to filter it which you can look up through different stackoverflow questions answered in the past.

let dbRef = FIRDatabase.database().reference.child("friends")
dbRef.observeSingleEvent(of: .value, with: { snapshot in
    if let data = snapshot.value as? [String: [String: String]] {
        for user in data {
            // You'll now have a dictionary with neatly formatted values you can filter
        }
    }
})

Firebase - retrieve all child keys and child values into separate arrays in Swift

Snapshots have two properties.

snapshot.key
snapshot.value

When using an observer with .value. all of the key: value children are returned in the snapshot. They can be iterated over to capture each key: value pair like this.

ref.observeSingleEvent(of: .value, with: { (snapshot) in
    for child in snapshot.children {
        let snap = child as! DataSnapshot
        let key = snap.key
        let value = snap.value
        print("key = \(key)  value = \(value!)")
    }
})

Keep in mind that the value property could be a string, number, array or another dictionary (snapshot). In the original question it's a String.

Get children of child nodes from firebase (swift 3)

try this:-

   func loadImages (){
    Database.database().reference(withPath: 
   "Студии").child("Дубаи").observe(.value, with: { (snapShot) in
        if snapShot.exists() {
            let array:NSArray = snapShot.children.allObjects as NSArray

            for child in array {
                let snap = child as! DataSnapshot
                if snap.value is NSDictionary {
                    let data:NSDictionary = snap.value as! NSDictionary
                    if let dict = data.value(forKey: "Images") {
                        let dictImage:NSDictionary = dict as! 
        NSDictionary
                        if let image  = dictImage["image1"] {
                            print(image)
                        }
                    }
                }

               // newImage1.append(url2)

            }
        }
    })
}

firebase child values as string in array to populate a picker swift 3

You need to reload the pickerView components to change it with new dataSource array.

let dbRef1 = FIRDatabase.database().reference().child("Live Scoring Male")

dbRef1.observe(.childAdded, with: { snapshot in

    if let dic = snapshot.value as? [String:Any], let name = dic["name"] as? String { 
        self.compArray.append(name) 
        print("\(name)")

        //Reload the pickerView components
        self.pickerView.reloadAllComponents()

        //Or you can reload the pickerView's specific component
        self.pickerView.reloadComponent(0)
    }
}) 

Retrieving an array of children in Firebase using Swift

You could do something like:

var ref = Firebase(url: "https://<yourApp>.firebaseio.com/restaurants/")

ref.observeEventType(.Value, withBlock: {
    snapshot in
    var restaurantNames = [String]()
    for restaurant in snapshot.children {
        restaurantNames.append(restaurant.key)
    }
    print(restaurantNames)
})

restaurantNames will have the array you asked for. You are still receiving the complete restaurant objects from firebase, but just using their keys(names).

Receiving a Firebase snapshot from a child with an array SWIFT

Try This

var post = [String]()
ref.observe(.value, with: { (snapshot) in
            for item in snapshot.children{
                self.post.append((item as AnyObject).key)
        }
    })

Then you print "post" and you will get ["170802120618", "170802101427"]

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