flutter firebase google sign in and how to access from multiple classes












0















I have a working google sign in and sign out learn from the tutorial



but I don't know how to access it from another class.
I want user profile picture from the login screen to home screen.



_googleSignIn.signIn().then((result) {
result.authentication.then((googleKey) {
FirebaseAuth.instance
.signInWithGoogle(
idToken: googleKey.idToken,
accessToken: googleKey.accessToken)
.then((signedInUser) {
print(
'Signed in as ${signedInUser.displayName} ${signedInUser.photoUrl}');
widget.onSignIn();
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
});
});
});


this is my code for sign in I want to access signedInUser.displayName from another class as well as signedInUser.photourl










share|improve this question

























  • You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

    – Frank van Puffelen
    Nov 24 '18 at 1:47
















0















I have a working google sign in and sign out learn from the tutorial



but I don't know how to access it from another class.
I want user profile picture from the login screen to home screen.



_googleSignIn.signIn().then((result) {
result.authentication.then((googleKey) {
FirebaseAuth.instance
.signInWithGoogle(
idToken: googleKey.idToken,
accessToken: googleKey.accessToken)
.then((signedInUser) {
print(
'Signed in as ${signedInUser.displayName} ${signedInUser.photoUrl}');
widget.onSignIn();
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
});
});
});


this is my code for sign in I want to access signedInUser.displayName from another class as well as signedInUser.photourl










share|improve this question

























  • You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

    – Frank van Puffelen
    Nov 24 '18 at 1:47














0












0








0








I have a working google sign in and sign out learn from the tutorial



but I don't know how to access it from another class.
I want user profile picture from the login screen to home screen.



_googleSignIn.signIn().then((result) {
result.authentication.then((googleKey) {
FirebaseAuth.instance
.signInWithGoogle(
idToken: googleKey.idToken,
accessToken: googleKey.accessToken)
.then((signedInUser) {
print(
'Signed in as ${signedInUser.displayName} ${signedInUser.photoUrl}');
widget.onSignIn();
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
});
});
});


this is my code for sign in I want to access signedInUser.displayName from another class as well as signedInUser.photourl










share|improve this question
















I have a working google sign in and sign out learn from the tutorial



but I don't know how to access it from another class.
I want user profile picture from the login screen to home screen.



_googleSignIn.signIn().then((result) {
result.authentication.then((googleKey) {
FirebaseAuth.instance
.signInWithGoogle(
idToken: googleKey.idToken,
accessToken: googleKey.accessToken)
.then((signedInUser) {
print(
'Signed in as ${signedInUser.displayName} ${signedInUser.photoUrl}');
widget.onSignIn();
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
}).catchError((e) {
print(e);
});
});
});


this is my code for sign in I want to access signedInUser.displayName from another class as well as signedInUser.photourl







firebase firebase-authentication flutter






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 24 '18 at 1:30









Frank van Puffelen

229k28375399




229k28375399










asked Nov 24 '18 at 1:22









Abhishek RazyAbhishek Razy

62




62













  • You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

    – Frank van Puffelen
    Nov 24 '18 at 1:47



















  • You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

    – Frank van Puffelen
    Nov 24 '18 at 1:47

















You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

– Frank van Puffelen
Nov 24 '18 at 1:47





You can either ensure the user is signed in from the second class too, attach an auth state listener, or pass the data to the second class with for example shared preferences. For examples of all three, see stackoverflow.com/questions/45353730/…

– Frank van Puffelen
Nov 24 '18 at 1:47












1 Answer
1






active

oldest

votes


















0














One way to pick up the current user in the second class is to use an auth state listener. The simplest way is:



FirebaseAuth.instance.onAuthStateChanged.listen((user) {
print(user);
});


This listen callback will fire whenever the authentication state changes, and you can use it to read properties from the user (or to update the UI to reflect the authentication state).



You can also ensure authentication in the second class (replicating part of what you now do already in the first class), or pass the data using shared preferences. For examples of all three approaches, see Firebase Login with Flutter using onAuthStateChanged.






share|improve this answer

























    Your Answer






    StackExchange.ifUsing("editor", function () {
    StackExchange.using("externalEditor", function () {
    StackExchange.using("snippets", function () {
    StackExchange.snippets.init();
    });
    });
    }, "code-snippets");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "1"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53454393%2fflutter-firebase-google-sign-in-and-how-to-access-from-multiple-classes%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    One way to pick up the current user in the second class is to use an auth state listener. The simplest way is:



    FirebaseAuth.instance.onAuthStateChanged.listen((user) {
    print(user);
    });


    This listen callback will fire whenever the authentication state changes, and you can use it to read properties from the user (or to update the UI to reflect the authentication state).



    You can also ensure authentication in the second class (replicating part of what you now do already in the first class), or pass the data using shared preferences. For examples of all three approaches, see Firebase Login with Flutter using onAuthStateChanged.






    share|improve this answer






























      0














      One way to pick up the current user in the second class is to use an auth state listener. The simplest way is:



      FirebaseAuth.instance.onAuthStateChanged.listen((user) {
      print(user);
      });


      This listen callback will fire whenever the authentication state changes, and you can use it to read properties from the user (or to update the UI to reflect the authentication state).



      You can also ensure authentication in the second class (replicating part of what you now do already in the first class), or pass the data using shared preferences. For examples of all three approaches, see Firebase Login with Flutter using onAuthStateChanged.






      share|improve this answer




























        0












        0








        0







        One way to pick up the current user in the second class is to use an auth state listener. The simplest way is:



        FirebaseAuth.instance.onAuthStateChanged.listen((user) {
        print(user);
        });


        This listen callback will fire whenever the authentication state changes, and you can use it to read properties from the user (or to update the UI to reflect the authentication state).



        You can also ensure authentication in the second class (replicating part of what you now do already in the first class), or pass the data using shared preferences. For examples of all three approaches, see Firebase Login with Flutter using onAuthStateChanged.






        share|improve this answer















        One way to pick up the current user in the second class is to use an auth state listener. The simplest way is:



        FirebaseAuth.instance.onAuthStateChanged.listen((user) {
        print(user);
        });


        This listen callback will fire whenever the authentication state changes, and you can use it to read properties from the user (or to update the UI to reflect the authentication state).



        You can also ensure authentication in the second class (replicating part of what you now do already in the first class), or pass the data using shared preferences. For examples of all three approaches, see Firebase Login with Flutter using onAuthStateChanged.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 24 '18 at 2:05

























        answered Nov 24 '18 at 1:49









        Frank van PuffelenFrank van Puffelen

        229k28375399




        229k28375399






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Stack Overflow!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53454393%2fflutter-firebase-google-sign-in-and-how-to-access-from-multiple-classes%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            Contact image not getting when fetch all contact list from iPhone by CNContact

            count number of partitions of a set with n elements into k subsets

            A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks