Flutter app crashes on firebase phone auth in iOS platform - ios

Question

I have implemented Firebase Phone auth in my project,
On android side everything works fine, but for iOS side, when i try to send verification code from my end, app crashes and lost connection.
I have submitted my code below.
main.dart
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return new MaterialApp(
home: new MyHomePage(),
routes: <String, WidgetBuilder> {
'/homepage': (BuildContext context) => MyApp(),
'/landingpage': (BuildContext context) => MyHomePage()
}
);
}
}
class MyHomePage extends StatefulWidget {
#override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
String phoneNo;
String smsCode;
String verificationId;
Future<void> verifyPhone() async {
print("main");
final PhoneCodeAutoRetrievalTimeout autoRetrieve = (String verId) {
print("varification id");
this.verificationId = verId;
};
final PhoneCodeSent smsCodeSent = (String verId, [int forceCodeResend]) {
print("send code dilog");
this.verificationId = verId;
smsCodeDialog(context).then((value) {
print('Signed in');
});
};
final PhoneVerificationCompleted verifiedSuccess = (AuthCredential user){
print('Phone Verification Completed');
};
final PhoneVerificationFailed veriFailed = (AuthException exception) {
print('${exception.message}');
};
await FirebaseAuth.instance.verifyPhoneNumber(
phoneNumber: "[phone]",
codeAutoRetrievalTimeout: autoRetrieve,
codeSent: smsCodeSent,
timeout: const Duration(seconds: 5),
verificationCompleted: verifiedSuccess,
verificationFailed: veriFailed);
}
Future<bool> smsCodeDialog(BuildContext context) {
return showDialog(
context: context,
barrierDismissible: false,
builder: (BuildContext context) {
return new AlertDialog(
title: Text('Enter sms Code'),
content: TextField(
onChanged: (value) {
this.smsCode = value;
},
),
contentPadding: EdgeInsets.all(10.0),
actions: <Widget>[
new FlatButton(
child: Text('Done'),
onPressed: () {
FirebaseAuth.instance.currentUser().then((user) {
if (user != null) {
Navigator.of(context).pop();
Navigator.of(context).pushReplacementNamed('/homepage');
} else {
Navigator.of(context).pop();
signIn();
}
});
},
)
],
);
});
}
signIn(){
final AuthCredential credential = PhoneAuthProvider.getCredential(
verificationId: verificationId,
smsCode: smsCode);
FirebaseAuth.instance.signInWithCredential(credential).then((user){
Navigator.of(context).pushReplacementNamed('/homepage');
}).catchError((e){
print('Auth Credential Error : $e');
});
}
#override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text('PhoneAuth'),
),
body: new Center(
child: Container(
padding: EdgeInsets.all(25.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
TextField(
decoration: InputDecoration(hintText: 'Enter Phone number'),
onChanged: (value) {
this.phoneNo = value;
},
),
SizedBox(height: 10.0),
RaisedButton(
onPressed: verifyPhone,
child: Text('Verify'),
textColor: Colors.white,
elevation: 7.0,
color: Colors.blue)
],
)),
),
);
}
}
this is error while submit the button
Launching lib/main.dart on Dhruvin’s iPhone in debug mode...
Automatically signing iOS for device deployment using specified development team in Xcode project: ******
Running Xcode build...
Xcode build done. 99.4s
Installing and launching...
Syncing files to device Dhruvin’s iPhone...
Lost connection to device.
However i am not able to see stacktrace or log as app lost connection from debugger.

Answer 1

i Solved the Problem,
thank you so much #DevarshRanpura for Helping me,
1) replace
signIn(){
final AuthCredential credential = PhoneAuthProvider.getCredential(
verificationId: verificationId,
smsCode: smsCode);
FirebaseAuth.instance.signInWithCredential(credential).then((user){
Navigator.of(context).pushReplacementNamed('/homepage');
}).catchError((e){
print('Auth Credential Error : $e');
});
}
to this
signIn() async {
final AuthCredential credential = PhoneAuthProvider.getCredential(
verificationId: verificationId,
smsCode: smsCode,
);
final AuthResult authResult = await _auth.signInWithCredential(credential);
final FirebaseUser user = authResult.user;
print('User Id : ' + user.uid);
}
also Define _auth on your dart file
final FirebaseAuth _auth = FirebaseAuth.instance;
2) adding reverse client id in to your project
open your project in xcode
double click on your project name
go to the info tab
In URL Types->URL schemes add the reverse client Id