Warning: file_get_contents(/data/phpspider/zhask/data//catemap/5/flutter/10.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Firebase 使用电话号码保持登录状态_Firebase_Flutter_Authentication - Fatal编程技术网

Firebase 使用电话号码保持登录状态

Firebase 使用电话号码保持登录状态,firebase,flutter,authentication,Firebase,Flutter,Authentication,如何使用电话号码注册并在注销前保持登录状态。我正在使用Flatter,我已经可以用电话号码注册用户,但当应用程序重新打开时,它会从登录页面开始 我们的想法是在注册后,甚至在应用程序关闭后保持登录状态。而且我也不能做循环指示器来显示应用程序正在加载(如果你也教我怎么做,我会很高兴的) 这是我的密码 import 'package:country_code_picker/country_code_picker.dart'; import 'package:firebase_auth/firebase

如何使用电话号码注册并在注销前保持登录状态。我正在使用Flatter,我已经可以用电话号码注册用户,但当应用程序重新打开时,它会从登录页面开始

我们的想法是在注册后,甚至在应用程序关闭后保持登录状态。而且我也不能做循环指示器来显示应用程序正在加载(如果你也教我怎么做,我会很高兴的)

这是我的密码

import 'package:country_code_picker/country_code_picker.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';

import 'BottomBarPages/home.dart';

class SignIn extends StatefulWidget {
  @override
  _SignInState createState() => _SignInState();
}

class _SignInState extends State<SignIn> {
  TextEditingController phoneController = new TextEditingController();
  String phoneNumber = "";

  bool shower = false;
  String smsCode;
  String verificationCode;

  void _onCountryChange(CountryCode countryCode) {
    this.phoneNumber = countryCode.toString();
    print("New Country selected: " + countryCode.toString());
  }

  void check() {
    final myPhone = this.phoneNumber + phoneController.text;
    print("Full Text: " + myPhone);
  }
  Future<void> man() async{

  }
  Future<void> submit() async {
    final myPhone = this.phoneNumber + phoneController.text;
    final PhoneVerificationCompleted verificationCompleted =
        (AuthCredential credential) {
      setState(() {
        print(credential);
      });
    };
    

    final PhoneVerificationFailed verificationFailed =
        (AuthException exception) {};

    final PhoneCodeSent phoneCodeSent = (String verId, [int forceCodeResend]) {
      this.verificationCode = verId;
      smsCodeDialog(context).then((value) => print("signed"));
    };

    final PhoneCodeAutoRetrievalTimeout autoRetrievalTimeout = (String verId) {
      this.verificationCode = verId;
    };
    await FirebaseAuth.instance.verifyPhoneNumber(
        phoneNumber: myPhone,
        timeout: const Duration(seconds: 5),
        verificationCompleted: verificationCompleted,
        verificationFailed: verificationFailed,
        codeSent: phoneCodeSent,
        codeAutoRetrievalTimeout: autoRetrievalTimeout);
  }

  Future<bool> smsCodeDialog(BuildContext context) {
    return showDialog(
        context: context,
        barrierDismissible: false,
        builder: (BuildContext context) {
          return AlertDialog(
            title: Text(
              'Enter Code',
              style: TextStyle(color: Colors.lightGreen, fontSize: 24),
            ),
            content: TextField(
              keyboardType: TextInputType.number,
              onChanged: (Value) {
                smsCode = Value;
              },
            ),
            contentPadding: EdgeInsets.all(10),
            actions: [
              FlatButton(
                  onPressed: () {
                    FirebaseAuth.instance.currentUser().then((user) {
                      if (user != null) {
                        Navigator.of(context).pop();
                        Navigator.push(context,
                            MaterialPageRoute(builder: (context) => Home()));
                      } else {
                        Navigator.of(context).pop();
                        signIn();
                      }
                    });
                  },
                  child: Text(
                    'Verify',
                    style: TextStyle(fontSize: 20, color: Colors.lightGreen),
                  ))
            ],
          );
        });
    // CircularProgressIndicator(
    //   valueColor: new AlwaysStoppedAnimation<Color>(Colors.lightGreen),
    //   value: 0.25,
    // );

  }

  signIn() {
    AuthCredential phoneAuthCredential = PhoneAuthProvider.getCredential(
        verificationId: verificationCode, smsCode: smsCode);
    FirebaseAuth.instance
        .signInWithCredential(phoneAuthCredential)
        .then((user) => Navigator.push(
            context, MaterialPageRoute(builder: (context) => Home())))
        .catchError((e) => print(e));
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        FocusScopeNode currentFocus = FocusScope.of(context);

        if (!currentFocus.hasPrimaryFocus) {
          currentFocus.unfocus();
        }
      },
      child: Scaffold(
        body: Column(
          //mainAxisAlignment: MainAxisAlignment.start,
          children: [
            Expanded(
              flex: 1,
              child: Container(
                height: MediaQuery.of(context).size.height,
                decoration: BoxDecoration(
                  gradient: LinearGradient(
                    begin: Alignment.topLeft,
                    end: Alignment.bottomRight,
                    stops: [0.1, 0.3, 1.0],
                    colors: [
                      Colors.lightGreen[300],
                      Colors.white,
                      Colors.lightGreen[50]
                    ],
                  ),
                ),
                child: Padding(
                  padding: const EdgeInsets.symmetric(vertical: 15),
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: [
                      SizedBox(
                        height: 150,
                        child: Image.asset('images/phone.png'),
                      ),
                      SizedBox(
                        height: 20,
                      ),
                      Padding(
                        padding: const EdgeInsets.symmetric(horizontal: 20),
                        child: Container(
                          decoration: BoxDecoration(
                              borderRadius: BorderRadius.circular(50),
                              border: Border.all(color: Colors.lightGreen)),
                          width: double.infinity,
                          height: 40,
                          child: Padding(
                            padding: const EdgeInsets.symmetric(horizontal: 30),
                            child: Row(
                             // crossAxisAlignment: CrossAxisAlignment.start,
                              //mainAxisAlignment: MainAxisAlignment.spaceBetween,
                              children: [
                                CountryCodePicker(
                                  dialogTextStyle: TextStyle(fontSize: 20),
                                  onChanged: _onCountryChange,
                                  initialSelection: 'US',
                                  favorite: ['+251', 'ET'],
                                ),
                                Padding(
                                  padding: const EdgeInsets.only(bottom: 10),
                                  child: SizedBox(
                                    width: 150,
                                    child: TextFormField(
                                      controller: phoneController,
                                      keyboardType: TextInputType.phone,
                                      decoration: InputDecoration(
                                        border: InputBorder.none,
                                      ),
                                    ),
                                  ),
                                ),
                              ],
                            ),
                          ),
                        ),
                      ),
                      SizedBox(
                        height: 20,
                      ),
                      MaterialButton(
                        onPressed: submit,
                        minWidth: MediaQuery.of(context).size.width - 80,
                        height: 45,
                        shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(20)),
                        color: Colors.lightGreen,
                        splashColor: Colors.green,
                        child: Text(
                          "Confirm",
                          style: TextStyle(color: Colors.white, fontSize: 18),
                        ),
                      ),
                      Padding(
                        padding:
                            EdgeInsets.symmetric(vertical: 14, horizontal: 64),
                        child: Text(
                          "you'll receive a 6 digit code click Confirm to verify",
                          textAlign: TextAlign.center,
                          style: TextStyle(
                            fontSize: 22,
                            color: Colors.lightGreen,
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}
import'程序包:country\u code\u picker/country\u code\u picker.dart';
导入“包:firebase_auth/firebase_auth.dart”;
进口“包装:颤振/材料.省道”;
导入'BottomBarPages/home.dart';
类签名扩展StatefulWidget{
@凌驾
_SignInState createState()=>\u SignInState();
}
类_SignInState扩展状态{
TextEditingController电话控制器=新的TextEditingController();
字符串phoneNumber=“”;
布尔阵雨=假;
字符串smsCode;
字符串验证码;
void\u onCountryChange(国家代码国家代码){
this.phoneNumber=countryCode.toString();
打印(“选择的新国家:+countryCode.toString());
}
无效检查(){
final myPhone=this.phoneNumber+phoneController.text;
打印(“全文:+myPhone”);
}
未来人()异步{
}
Future submit()异步{
final myPhone=this.phoneNumber+phoneController.text;
最终电话验证已完成验证已完成=
(认证凭证){
设置状态(){
打印(凭证);
});
};
最终电话验证失败验证失败=
(授权例外){};
final PhoneCodeSent PhoneCodeSent=(字符串verId,[int-forceCodeResend]){
this.verificationCode=verId;
smsCodeDialog(上下文)。然后((值)=>打印(“签名”);
};
最终PhoneCodeAutoRetrievalTimeout autoRetrievalTimeout=(字符串verId){
this.verificationCode=verId;
};
等待FirebaseAuth.instance.verifyPhoneNumber(
电话号码:myPhone,
超时:常量持续时间(秒数:5),
验证完成:验证完成,
验证失败:验证失败,
codeSent:phoneCodeSent,
codeAutoRetrievalTimeout:autoRetrievalTimeout);
}
未来smsCodeDialog(构建上下文){
返回显示对话框(
上下文:上下文,
禁止:错误,
生成器:(BuildContext上下文){
返回警报对话框(
标题:正文(
“输入代码”,
样式:TextStyle(颜色:Colors.lightGreen,字体大小:24),
),
内容:TextField(
键盘类型:TextInputType.number,
一旦更改:(值){
smsCode=值;
},
),
contentPadding:EdgeInsets.all(10),
行动:[
扁平按钮(
已按下:(){
FirebaseAuth.instance.currentUser().then((用户){
如果(用户!=null){
Navigator.of(context.pop();
Navigator.push(上下文,
MaterialPackageRoute(生成器:(上下文)=>Home());
}否则{
Navigator.of(context.pop();
签名();
}
});
},
子:文本(
“核实”,
样式:TextStyle(字体大小:20,颜色:Colors.浅绿色),
))
],
);
});
//循环压缩机指示器(
//valueColor:new AlwaysStoppedAnimation(颜色:浅绿色),
//数值:0.25,
// );
}
签名(){
AuthCredential phoneAuthCredential=PhoneAuthProvider.getCredential(
验证ID:verificationCode,smsCode:smsCode);
FirebaseAuth.instance
.signInWithCredential(phoneAuthCredential)
.然后((用户)=>Navigator.push(
上下文,MaterialPage路由(生成器:(上下文)=>Home())
.catchError((e)=>打印(e));
}
@凌驾
小部件构建(构建上下文){
返回手势检测器(
onTap:(){
FocusScopeNode currentFocus=FocusScope.of(上下文);
如果(!currentFocus.hasPrimaryFocus){
currentFocus.unfocus();
}
},
孩子:脚手架(
正文:专栏(
//mainAxisAlignment:mainAxisAlignment.start,
儿童:[
扩大(
弹性:1,
子:容器(
高度:MediaQuery.of(context).size.height,
装饰:盒子装饰(
梯度:线性梯度(
开始:Alignment.topLeft,
结束:对齐。右下角,
停止:[0.1,0.3,1.0],
颜色:[
颜色。浅绿色[300],
颜色,白色,
颜色。浅绿色[50]
],
),
),
孩子:填充(
填充:常量边集。对称(垂直:15),
子:列(
mainAxisAlignment:mainAxisAlignment.center,
儿童:[
大小盒子(
身高:150,
子项:Image.asset('images/phone.png'),
),
大小盒子(
身高:20,
),
填充物(
填充:常量边集。对称(水平:20),
子:容器(
装饰:盒子装饰(
边界半径:边界半径。圆形(50),
边框:边框。全部(颜色:Colors.lightGreen)),
宽度:double.infinity,
高度:
User user = FirebaseAuth.instance.currentUser;
  @override
  void initState() {
    super.initState();
    getUser();
  }

  getUser() {
    User firebaseUser = FirebaseAuth.instance.currentUser;
    if (firebaseUser != null)
      WidgetsBinding.instance.addPostFrameCallback((_) =>
          Navigator.pushReplacement(
              context, MaterialPageRoute(builder: (context) => HomePage()))); 
  }