Firebase与模拟器连接，但未在真实设备iOS中连接

Question

I am developing a app which has the connection with Firebase DB. This is one part of my code,

let ref1 = Database.database().reference()
ref1.child("UserId").child("\(user_id)").setValue(["name": "\(name)"])

And this one is working fine in simulator(updating value in firebase DB), but not in real device. I have tried some solutions from this site, still I can't get the output.

Is anyone there to help me?

Answer 1

This could be because you are not authenticated on your device or any other reasons. In order to debug it, I suggest you to add a completion block for your setValue which is going to be called whenever the write has been committed to the database. If the call was unsuccessful for any reasons, you can get the error object and take a look at the error.

yourRef.setValue(["name": "\(name)"]) { (error, dbRef) in
   if (error != nil) {
     //catch the error here 
     print("Data could not be saved.")
   } else {
      print("Data saved successfully!")
  }
}

Answer 2

At last, the issue was the real device's date and time. The date and time was incorrect in my device. So, the connection with firebase DB failed. Now, it's fixed. Thanks for you suggestions!!