Api 取回信物邮递员飞_Api_Flutter_Dart_Postman_Bearer Token

Api 取回信物邮递员飞

api flutter dart postman

Api 取回信物邮递员飞,api,flutter,dart,postman,bearer-token,Api,Flutter,Dart,Postman,Bearer Token,我在我的Flatter项目上创建了一个简单的登录功能，只需输入一封电子邮件和一个密码即可。现在我想添加postman的令牌承载功能，这样即使应用程序已经关闭，用户仍然可以登录。我想问的是，如何将令牌承载值放入共享首选项函数中这是我的登录码 login() async { final response = await http.post( "https://api.batulima.com//v1_ships/login_app", body: {"em

我在我的Flatter项目上创建了一个简单的登录功能，只需输入一封电子邮件和一个密码即可。现在我想添加postman的令牌承载功能，这样即使应用程序已经关闭，用户仍然可以登录。我想问的是，如何将令牌承载值放入共享首选项函数中

这是我的登录码

login() async {
final response = await http.post(
  "https://api.batulima.com//v1_ships/login_app",
  body: {"email": email, "password": password},
);
final data = jsonDecode(response.body);
String status = data['status'];
String message = data['message'];
if (status == "success") {
  Navigator.of(context).pushReplacement(PageRouteBuilder(
      pageBuilder: (_, __, ___) => new bottomNavBar(),
      transitionDuration: Duration(milliseconds: 600),
      transitionsBuilder:
          (_, Animation<double> animation, __, Widget child) {
        return Opacity(
          opacity: animation.value,
          child: child,
        );
      }));
  print(message);
} else {
  print(message);
 }
}

我应该添加什么才能从apikey检索值

下面是我在main.dart中创建的getpref。如果为null，则从初始屏幕开始，直到登录页面。如果apikey已经保存，它将进入底部导航栏页面

Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
SharedPreferences prefs = await SharedPreferences.getInstance();
var apikey = prefs.getString('apikey');
print(apikey);
runApp(MaterialApp(
  debugShowCheckedModeBanner: false,
  home: apikey == null ? splash() : bottomNavBar()));
}

Future main（）异步{
WidgetsFlutterBinding.ensureInitialized（）；
SharedReferences prefs=等待SharedReferences.getInstance（）；
var apikey=prefs.getString（'apikey'）；
打印（apikey）；
runApp（材料应用程序）(
debugShowCheckedModeBanner:false，
home:apikey==null？splash（）：bottomNavBar（））；
}

您可以复制粘贴运行下面的完整代码
要在JSON中检索apikey的值，您可以执行

data['data']['apikey']

代码片段

String apiKey = data['data']['apikey'];
print("apiKey $apiKey");

SharedPreferences prefs = await SharedPreferences.getInstance();   
await prefs.setString('apiKey', apiKey);

String getedApiKey = await prefs.getString('apiKey');
print(getedApiKey);

输出

I/flutter (22942): apiKey ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==
I/flutter (22942): ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==
I/flutter (22942): login successfully

完整代码

import 'dart:convert';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  login() async {
    /*final response = await http.post(
      "https://api.batulima.com//v1_ships/login_app",
      body: {"email": email, "password": password},
    );*/
    String jsonString = '''
    {
"status": "success",
"data": {
    "apikey": "ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==",
    "id_user": 49,
    "id_role": "8",
    "name_role": "Ship Owner",
    "email": "afriansyahm86@gmail.com",
    "phone": "082258785595",
    "saldo": "0",
    "photo": "https://batulimee.com/foto_user/avatar.png"
},
"message": "login successfully "
}
    ''';
    final response = http.Response(jsonString, 200);

    final data = jsonDecode(response.body);
    String status = data['status'];
    String message = data['message'];
    String apiKey = data['data']['apikey'];
    print("apiKey $apiKey");

    SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString('apiKey', apiKey);

    String getedApiKey = await prefs.getString('apiKey');
    print(getedApiKey);

    if (status == "success") {
      /* Navigator.of(context).pushReplacement(PageRouteBuilder(
          pageBuilder: (_, __, ___) => new bottomNavBar(),
          transitionDuration: Duration(milliseconds: 600),
          transitionsBuilder:
              (_, Animation<double> animation, __, Widget child) {
            return Opacity(
              opacity: animation.value,
              child: child,
            );
          }));*/
      print(message);
    } else {
      print(message);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: login,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

导入'dart:convert'；
导入“package:shared_preferences/shared_preferences.dart”；
进口“包装：颤振/材料.省道”；
将“package:http/http.dart”导入为http；
void main（）{
runApp（MyApp（））；
}
类MyApp扩展了无状态小部件{
@凌驾
小部件构建（构建上下文）{
返回材料PP(
标题：“颤振演示”，
主题：主题数据(
主样本：颜色。蓝色，
视觉密度：视觉密度。自适应平台密度，
),
主页：MyHomePage（标题：“颤振演示主页”），
);
}
}
类MyHomePage扩展StatefulWidget{
MyHomePage（{Key，this.title}）：超级（Key:Key）；
最后的字符串标题；
@凌驾
_MyHomePageState createState（）=>\u MyHomePageState（）；
}
类_MyHomePageState扩展状态{
int _计数器=0；
login（）异步{
/*最终响应=等待http.post(
"https://api.batulima.com//v1_ships/login_app",
正文：{“email”：email，“password”：password}，
);*/
字符串jsonString='''
{
“状态”：“成功”，
“数据”：{
“apikey”：“AK5NEGVDD3H4M0LVEVF2B2 HXWJG3OEZMYULVCWEXTXRQQ21XSMJGWQ=”，
“id_用户”：49，
“id_角色”：“8”，
“名称\角色”：“船东”，
“电子邮件”：afriansyahm86@gmail.com",
“电话”：“08225878595”，
“saldo”：“0”，
“照片”：https://batulimee.com/foto_user/avatar.png"
},
“消息”：“登录成功”
}
''';
最终响应=http.response（jsonString，200）；
最终数据=jsonDecode（response.body）；
字符串状态=数据['status']；
字符串消息=数据['message']；
字符串apiKey=data['data']['apiKey']；
打印（“apiKey$apiKey”）；
SharedReferences prefs=等待SharedReferences.getInstance（）；
等待参数设置字符串（'apiKey'，apiKey）；
String getedApiKey=await prefs.getString（'apiKey'）；
打印（getedApiKey）；
如果（状态=“成功”）{
/*导航器.of（上下文）.pushReplacement（PageRouteBuilder(
页面生成器：（，，，，_）=>新底部导航栏（），
转换持续时间：持续时间（毫秒：600），
转换生成器：
（uu，动画，uu，小部件子项）{
返回不透明度(
不透明度：animation.value，
孩子：孩子，
);
}));*/
打印（信息）；
}否则{
打印（信息）；
}
}
@凌驾
小部件构建（构建上下文）{
返回脚手架(
appBar:appBar(
标题：文本（widget.title），
),
正文：中(
子：列(
mainAxisAlignment:mainAxisAlignment.center，
儿童：[
正文(
“您已经按了这么多次按钮：”，
),
正文(
“$”计数器“，
风格：Theme.of（context）.textTheme.headline4，
),
],
),
),
浮动操作按钮：浮动操作按钮(
onPressed:login，
工具提示：“增量”，
子：图标（Icons.add），
),
);
}
}

您可以复制粘贴运行下面的完整代码
要在JSON中检索apikey的值，您可以执行

data['data']['apikey']

代码片段

String apiKey = data['data']['apikey'];
print("apiKey $apiKey");

SharedPreferences prefs = await SharedPreferences.getInstance();   
await prefs.setString('apiKey', apiKey);

String getedApiKey = await prefs.getString('apiKey');
print(getedApiKey);

输出

I/flutter (22942): apiKey ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==
I/flutter (22942): ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==
I/flutter (22942): login successfully

完整代码

import 'dart:convert';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  login() async {
    /*final response = await http.post(
      "https://api.batulima.com//v1_ships/login_app",
      body: {"email": email, "password": password},
    );*/
    String jsonString = '''
    {
"status": "success",
"data": {
    "apikey": "ak5neGVDd3h4M0lVeVF2b2hXWjg3OEZMYUlvcWExTXRqQ21xSmJGWQ==",
    "id_user": 49,
    "id_role": "8",
    "name_role": "Ship Owner",
    "email": "afriansyahm86@gmail.com",
    "phone": "082258785595",
    "saldo": "0",
    "photo": "https://batulimee.com/foto_user/avatar.png"
},
"message": "login successfully "
}
    ''';
    final response = http.Response(jsonString, 200);

    final data = jsonDecode(response.body);
    String status = data['status'];
    String message = data['message'];
    String apiKey = data['data']['apikey'];
    print("apiKey $apiKey");

    SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString('apiKey', apiKey);

    String getedApiKey = await prefs.getString('apiKey');
    print(getedApiKey);

    if (status == "success") {
      /* Navigator.of(context).pushReplacement(PageRouteBuilder(
          pageBuilder: (_, __, ___) => new bottomNavBar(),
          transitionDuration: Duration(milliseconds: 600),
          transitionsBuilder:
              (_, Animation<double> animation, __, Widget child) {
            return Opacity(
              opacity: animation.value,
              child: child,
            );
          }));*/
      print(message);
    } else {
      print(message);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: login,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

导入'dart:convert'；
导入“package:shared_preferences/shared_preferences.dart”；
进口“包装：颤振/材料.省道”；
将“package:http/http.dart”导入为http；
void main（）{
runApp（MyApp（））；
}
类MyApp扩展了无状态小部件{
@凌驾
小部件构建（构建上下文）{
返回材料PP(
标题：“颤振演示”，
主题：主题数据(
主样本：颜色。蓝色，
视觉密度：视觉密度。自适应平台密度，
),
主页：MyHomePage（标题：“颤振演示主页”），
);
}
}
类MyHomePage扩展StatefulWidget{
MyHomePage（{Key，this.title}）：超级（Key:Key）；
最后的字符串标题；
@凌驾
_MyHomePageState createState（）=>\u MyHomePageState（）；
}
类_MyHomePageState扩展状态{
int _计数器=0；
login（）异步{
/*最终响应=等待http.post(
"https://api.batulima.com//v1_ships/login_app",
正文：{“email”：email，“password”：password}，
);*/
字符串jsonString='''
{
“状态”：“成功”，
“数据”：{
“apikey”：“AK5NEGVDD3H4M0LVEVF2B2 HXWJG3OEZMYULVCWEXTXRQQ21XSMJGWQ=”，
“id_用户”：49，
“id_角色”：“8”，
“名称\角色”：“船东”，
“电子邮件”：afriansyahm86@gmail.com",
“电话”：“08225878595”，
“saldo”：“0”，
“照片”：https://batulimee.com/foto_user/avatar.png"
},
“消息”：“登录成功”
}
''';
最终响应=http.response（jsonString，200）；
最终数据=jsonDecode（response.body）；
字符串状态=数据['status']；
字符串消息=数据['message']；
字符串apiKey=data['data']['apiKey']；
打印（“apiKey$apiKey”）；
SharedReferences prefs=等待