auto navigate to home screen after otp login flutter
class SignUpView extends StatefulWidget {
@override
_SignUpViewState createState() => _SignUpViewState();
}
class _SignUpViewState extends State<SignUpView> {
final formKey = new GlobalKey<FormState>();
String phoneNo, verificationId, smsCode;
bool codeSent = false;
@override
Widget build(BuildContext context) {
return Scaffold(
body: Form(
key: formKey,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Padding(
padding: EdgeInsets.only(left: 25, right: 25),
child: TextFormField(
keyboardType: TextInputType.phone,
decoration: InputDecoration(hintText: "Enter Phone Number"),
onChanged: (val) {
setState(() {
this.phoneNo = val;
});
},
),
),
codeSent ? Padding(
padding: EdgeInsets.only(left: 25, right: 25),
child: TextFormField(
keyboardType: TextInputType.phone,
decoration: InputDecoration(hintText: "Enter OTP"),
onChanged: (val) {
setState(() {
this.smsCode = val;
});
},
),
): Container(),
Padding(
padding: EdgeInsets.only(left: 25, right: 25),
child: RaisedButton(
child: Center(
child: codeSent ? Text("Login") : Text("Login"),
),
onPressed: () {
codeSent? AuthService().signInWithOTP(smsCode, verificationId):verifyPhone(phoneNo);
},
),
),
],
),
),
);
}
Future<void> verifyPhone(phoneNo) async {
final PhoneVerificationCompleted verified = (AuthCredential authResult) {
AuthService().signIn(authResult);
};
final PhoneVerificationFailed verificationFailed = (
AuthException authException) {
print('${authException.message}');
};
final PhoneCodeSent smsSent = (String verId, [int forceResend]) {
this.verificationId = verId;
setState(() {
this.codeSent = true;
});
};
final PhoneCodeAutoRetrievalTimeout autoTimeOut = (String verId) {
this.verificationId = verId;
};
await FirebaseAuth.instance.verifyPhoneNumber(
phoneNumber: phoneNo,
timeout: const Duration(seconds: 5),
verificationCompleted: verified,
verificationFailed: verificationFailed,
codeSent: smsSent,
codeAutoRetrievalTimeout: autoTimeOut);
}
}