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February 21, 2017 22:46
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Firebase database connected? Swift class
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var connectedRef: FIRDatabaseReference! { | |
return FIRDatabase.database().reference().child(".info/connected") | |
} | |
class FIRConnection { | |
static let sharedInstance = FIRConnection() | |
var handle: UInt? | |
var isConnected = false | |
class func startMonitoring() { | |
sharedInstance.handle = connectedRef.observe(.value, with: { (snapshot) in | |
guard let connected = snapshot.value as? Bool else { | |
print("FIRConnection: Error occurred") | |
return | |
} | |
if connected { | |
print("FIRConnection: Connected") | |
sharedInstance.isConnected = true | |
} else { | |
print("FIRConnection: Not connected") | |
sharedInstance.isConnected = false | |
} | |
}) | |
} | |
class func stopMonitoring() { | |
if let handle = sharedInstance.handle { | |
connectedRef.removeObserver(withHandle: handle) | |
} | |
} | |
class func connected() -> Bool { | |
return sharedInstance.isConnected | |
} | |
} |
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