質問編集履歴
1
情報修正
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@@ -30,9 +30,9 @@
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ref.child("users").setValue(["userCoordinate": userCoordinate])
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print("位置情報を保存しました")
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}
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-
//Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional valueのエラー
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@IBAction func othersLocation(_ sender: Any)
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{
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+
//Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional valueのエラー
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ref.child("userLatitude").child(user!).observeSingleEvent(of: .value, with: { (snapshot) in
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let value = snapshot.value as? NSDictionary
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let otherUserLatitude = value?["userLatitude"] as? String
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