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You can use Firebase Authentication to sign in a user by sending an SMS message to the user’s phone. The user signs in using a one-time code contained in the SMS message.
Create a custom layout for register user contact number, user can verify the authentication code.
Then pass the phone number to PhoneAuthProvider.verifyPhoneNumber method to request the Firebase to verify the contact number. For example:
When you call PhoneAuthProvider.verifyPhoneNumber, you must also provide an instance of OnVerificationStateChangedCallbacks, which contains implementations of the callback functions that handle the results of the request. For example:
After the user enters the verification code that Firebase sent to the user’s phone, create a PhoneAuthCredential object, using the verification code to onCodeSent or onCodeAutoRetrievalTimeOut callback.
After user verify it’s authentication code pass the credential instanace of PhoneAuthProvider to signInWithPhoneAuthCredential(credential) method.
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Excellent work, fast, good quality and understood the brief perfectly! Quick responses developing the project and very good cooperation. I suggest to anyone.
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