如何从firebase获取子节点? Firebase结构在这里:
我需要为上面的每个孩子准备一个孩子“照片”。然后添加到collectionView每个孩子“照片”。
我的firebase结构:
{
"Студии" : {
"Бабулька" : {
"Photo" : {
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/city3.jpg?alt=media&token=12a87c0c-ade1-43f9-b76b-ecdaa86cf185"
},
"address" : "Сатурн",
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/city3.jpg?alt=media&token=12a87c0c-ade1-43f9-b76b-ecdaa86cf185",
"image1" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/city3.jpg?alt=media&token=12a87c0c-ade1-43f9-b76b-ecdaa86cf185",
"name" : "Карапулька"
},
"Дубаи" : {
"Photo" : {
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/city1.jpg?alt=media&token=c442fd8f-4cc4-4e30-8242-975aaf5427dc"
},
"address" : "Тутушка",
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/city1.jpg?alt=media&token=c442fd8f-4cc4-4e30-8242-975aaf5427dc",
"name" : "Дубаи"
},
"Лондон" : {
"Photo" : {
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/oko1.jpg?alt=media&token=fedea2cb-93b1-496c-9392-0b95f4ada7b5"
},
"address" : "Бейкер стрит",
"image" : "https://firebasestorage.googleapis.com/v0/b/test2-29e4b.appspot.com/o/oko1.jpg?alt=media&token=fedea2cb-93b1-496c-9392-0b95f4ada7b5",
"name" : "Лондон"
}
}
}
感谢您的帮助。
答案 0 :(得分:0)
要获取所需数据,请迭代主父节点的所有子注释。假设以下结构
posts
post_0
Photo
image: "https://www....."
post_1
Photo
image: "https://www....."
以及获取图片网址的代码......
let ref = self.ref.child("posts")
ref.observeSingleEvent(of: .value, with: { snapshot in
for child in snapshot.children {
let snap = child as! DataSnapshot
let imageSnap = snap.childSnapshot(forPath: "Photo")
let dict = imageSnap.value as! [String: Any]
let url = dict["image"] as! String
print(url)
}
})