Create Sign-in-with-Google button in Flutter in accordance with the terms

Question

I'd like to add a "Sign in with Google" Button to my Flutter app. This button should be in accordance with the terms of Google.

My problem is, that the button I've create looks really awful.

I used the images which Google provides on their website but I don't know if I'm doing right with the code for the button.

  Widget _createLoginButtonGoogle() {
    return new Expanded(
      child: new Container(
        margin: EdgeInsets.fromLTRB(30.0, 5.0, 30.0, 5.0),
        child: new RaisedButton(
          color: const Color(0xFF4285F4),
          shape: _createButtonBorder(),
          onPressed: () {},
          child: new Row(
            children: <Widget>[
              new Image.asset(
                'res/images/icons/google/btn_google_dark_normal_mdpi.9.png',
                height: 48.0,
              ),
              new Expanded(
                child: _createButtonText('Sign in with Google', Colors.white),
              ),
            ],
          ),
        ),
      ),
    );
  }

What I want is that my button looks like the original Google button

And not like my version

Can anyone tell me how to create the original google button? Is there a better way than creating a RaisedButton ?

Answer 1

I'd like to add a "Sign in with Google" Button to my Flutter app. This button should be in accordance with the terms of Google.

My problem is, that the button I've create looks really awful.

I used the images which Google provides on their website but I don't know if I'm doing right with the code for the button.

  Widget _createLoginButtonGoogle() {
    return new Expanded(
      child: new Container(
        margin: EdgeInsets.fromLTRB(30.0, 5.0, 30.0, 5.0),
        child: new RaisedButton(
          color: const Color(0xFF4285F4),
          shape: _createButtonBorder(),
          onPressed: () {},
          child: new Row(
            children: <Widget>[
              new Image.asset(
                'res/images/icons/google/btn_google_dark_normal_mdpi.9.png',
                height: 48.0,
              ),
              new Expanded(
                child: _createButtonText('Sign in with Google', Colors.white),
              ),
            ],
          ),
        ),
      ),
    );
  }

What I want is that my button looks like the original Google button

And not like my version

Can anyone tell me how to create the original google button? Is there a better way than creating a RaisedButton ?

Answer 2

I'm giving you a general idea, replace Android icon with your Google image using Image.asset(google_image)

InkWell(
  onTap: () {},
  child: Ink(
    color: Color(0xFF397AF3),
    child: Padding(
      padding: EdgeInsets.all(6),
      child: Wrap(
        crossAxisAlignment: WrapCrossAlignment.center,
        children: [
          Icon(Icons.android), // <-- Use 'Image.asset(...)' here
          SizedBox(width: 12),
          Text('Sign in with Google'),
        ],
      ),
    ),
  ),
)

Answer 3

you can use Padding property of raised button also use property of Row widget and mainAxisSize of button. Following code may help you to understand clearly.

 new Container(
      margin: EdgeInsets.fromLTRB(30.0, 5.0, 30.0, 5.0),
      child: new RaisedButton(
        padding: EdgeInsets.only(top: 3.0,bottom: 3.0,left: 3.0),
        color: const Color(0xFF4285F4),
        onPressed: () {},
        child: new Row(
          mainAxisSize: MainAxisSize.min,
          children: <Widget>[
            new Image.asset(
              'res/images/icons/google/btn_google_dark_normal_mdpi.9.png',
              height: 48.0,
            ),
            new Container(
              padding: EdgeInsets.only(left: 10.0,right: 10.0),
                child: new Text("Sign in with Google",style: TextStyle(color: Colors.white,fontWeight: FontWeight.bold),)
            ),
          ],
        )
      ),
    ),

Answer 4

There Is A Pretty Awesome Package Called flutter_signin_button on pub.dev .

You Can Use It It Has Sign In Buttons For

• Email
• Google
• Facebook
• GitHub
• LinkedIn
• Pinterest
• Tumblr
• Twitter
• Apple

With Some Supporting Dark Mode Also With Mini Buttons!

First Add It To Your pubspec.yaml

dependencies:
  ...
  flutter_signin_button:

then import it into your file:

import 'package:flutter_signin_button/flutter_signin_button.dart';

and use the buttons like this:

SignInButton(
  Buttons.Google,
  onPressed: () {},
)

Here Is A Preview Of All The Buttons:

Answer 5

use this one

      child: InkWell(
        onTap: () {},
        child: Container(
          height: 50,
          width: CustomWidth(context) - 100,
          color: Colors.blueAccent,
          child: Row(
            children: [
              Container(
                margin: EdgeInsets.symmetric(horizontal: 3),
                height: 45,
                width: 50,
                decoration: BoxDecoration(
                    color: Colors.white,
                    image: DecorationImage(
                        image: NetworkImage("https://cdn-icons-png.flaticon.com/512/2991/2991148.png"))),
              ),
              SizedBox(
                width: 10,
              ),
              DefaultTextView(
                text: "SignUp With Google",
                color: AppColors.whiteColor,
                fontweight: FontWeight.bold,
              )
            ],
          ),
        ),
      ),

Answer 6

 ElevatedButton(
                style: ElevatedButton.styleFrom(
                  primary: Colors.white,
                  onPrimary: Colors.black,
                ),
                onPressed: () {
                  googleLogin();
                },
                child: Padding(
                  padding: const EdgeInsets.fromLTRB(0, 8, 0, 8),
                  child: Row(
                    mainAxisSize: MainAxisSize.min,
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: const [
                      Image(
                        image: AssetImage("assets/google_logo.png"),
                        height: 18.0,
                        width: 24,
                      ),
                      Padding(
                        padding: EdgeInsets.only(left: 24, right: 8),
                        child: Text(
                          'Sign in with Google',
                          style: TextStyle(
                            fontSize: 20,
                            color: Colors.black54,
                            fontWeight: FontWeight.w600,
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
              ),

for more you can change the Text font to Roboto Medium and make the size 14x, based on the branding rulehttps://developers.google.com/identity/branding-guidelines#font

Answer 7

You can use this class and just need to pass function and add google icon in your assets/images folder and change the icon name in code, and you are good to go.

 import 'package:flutter/material.dart';
    import 'package:social_app/constants/colors.dart';
    
    class GoogleSignInButton extends StatefulWidget {
      final function;
      final String buttonText;
    
      const GoogleSignInButton(
          {super.key, required this.function, required this.buttonText});
    
      @override
      State<StatefulWidget> createState() => GoogleSignInButtonState();
    }
    
    class GoogleSignInButtonState extends State<GoogleSignInButton> {
      bool isButtonClicked = false;
    
      @override
      Widget build(BuildContext context) {
        return Container(
          height: 50,
          width: double.infinity,
          child: ElevatedButton(
            onPressed: isButtonClicked
                ? () {}
                : () async {
                    setState(() {
                      isButtonClicked = true;
                    });
                    await widget.function();
                    setState(() {
                      isButtonClicked = false;
                    });
                  },
            style: ButtonStyle(
              padding: MaterialStateProperty.all<EdgeInsets>(EdgeInsets.zero),
              shape: isButtonClicked
                  ? MaterialStateProperty.all<CircleBorder>(CircleBorder())
                  : MaterialStateProperty.all<RoundedRectangleBorder>(
                      RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(5.0),
                    )),
              backgroundColor: MaterialStateProperty.all<Color>(mainColor),
            ),
            child: isButtonClicked
                ? Container(
                    height: 25,
                    width: 25,
                    child: CircularProgressIndicator(
                      color: Colors.white,
                    ),
                  )
                : Container(
                    padding: EdgeInsets.all(5),
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.start,
                      crossAxisAlignment: CrossAxisAlignment.center,
                      children: [
                        Container(
                          decoration: BoxDecoration(
                            borderRadius: BorderRadius.all(Radius.circular(3)),
                            color: Colors.white,
                          ),
                          padding: EdgeInsets.all(5),
                          child: Image.asset("assets/images/google_icon.png"),
                        ),
                        SizedBox(
                          width: 30,
                        ),
                        Text(
                          "Sign in with google",
                          style: TextStyle(fontSize: 20),
                        )
                      ],
                    ),
                  ),
          ),
        );
      }
    }

Answer 8

For google logo image on white background and raised button with blue background:

Container(
          margin: EdgeInsets.fromLTRB(30.0, 5.0, 30.0, 5.0),
          child: new RaisedButton(
              padding: EdgeInsets.all(1.0),
              color: const Color(0xff4285F4),
              onPressed: () async {
                _signInWithGoogle();
              },
              child: new Row(
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Container(
                    padding: EdgeInsets.all(8.0),
                    decoration: BoxDecoration(
                      color: Colors.white,
                    ),
                    child: Image.asset(
                      Images.googleLogo,
                      height: 18.0,
                    ),
                  ),
                  Container(
                      padding: EdgeInsets.only(left: 10.0, right: 10.0),
                      child: new Text(
                        "Sign in with Google",
                        style: TextStyle(
                            color: Colors.white, fontWeight: FontWeight.bold),
                      )),
                ],
              )),
        ),