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[英]How can I convert a Firebase Database Snapshot into an Array List in Swift?
[英]How can I map my Firebase snapshot in Swift 4?
您可以嘗試以下方法:
func fetchExistingChannels()
{
Database.database().reference().child("channels").observe(.value, with: { (snapshot) in
for child in snapshot.children {
let c = child as! DataSnapshot
let dict = c.value as? [String : AnyObject]
self.fetchedChannels.append(dict!["channelName"] as! String)
print(dict!["channelName"] as! String)
}
})
}
嘗試此操作以獲取值channelName
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