成功登录后，我无法导航回我的应用程序。
软件包：https://pub.dev/documentation/agent_dart/latest/
我正在尝试运行的示例项目：https://github.com/AstroxNetwork/agent_dart_examples/tree/main/auth_counter
中间页面存储库：https://github.com/krpeacock/auth-client-demo
登录后我无法自动导航回应用程序。当我手动导航时，它显示以下错误。
Got error: PlatformException(CANCELED, User canceled login, null, null)我正在使用 ngrok 与我的应用程序连接。
我的 main.dart 👇
import 'package:agent_dart/agent_dart.dart';
import 'package:agent_dart_auth/agent_dart_auth.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:uni_links/uni_links.dart';
import 'dart:async';
// import Counter class with canister call
import 'counter.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
bool _loading = false;
String? _error;
String? _status;
// setup state class variable;
Counter? counter;
Identity? _identity;
StreamSubscription? _sub;
@override
void initState() {
super.initState();
initCounter();
initUniLinks();
}
@override
void dispose() {
_sub?.cancel();
super.dispose();
}
void initUniLinks() async {
// Attach a listener to the links stream
_sub = linkStream.listen((String? link) {
if (link != null) {
// Handle the deep link, e.g., parse and use its data
print("Deep link: $link");
// You can add your navigation logic here
}
}, onError: (err) {
// Handle errors
print("Failed to handle deep link: $err");
});
// Handle initial link if the app was opened with a deep link
try {
String? initialLink = await getInitialLink();
if (initialLink != null) {
print("Initial deep link: $initialLink");
// You can add your navigation logic here
}
} catch (e) {
// Handle errors
print("Failed to handle initial deep link: $e");
}
}
Future<void> initCounter({Identity? identity}) async {
// initialize counter, change canister id here
counter = Counter(
canisterId: 'bkyz2-fmaaa-aaaaa-qaaaq-cai',
url: 'https://abde-2401-4900-1c35-870c-ccd1-a875-346-c71b.ngrok-free.app');
// set agent when other paramater comes in like new Identity
await counter?.setAgent(newIdentity: identity);
isAnon();
await getValue();
}
void isAnon() {
if (_identity == null || _identity!.getPrincipal().isAnonymous()) {
setState(() {
_status = 'You have not logined';
});
} else {
setState(() {
_status = 'Login principal is :${_identity!.getPrincipal().toText()}';
});
}
}
// get value from canister
Future<void> getValue() async {
var counterValue = await counter?.getValue();
setState(() {
_error = null;
_counter = counterValue ?? _counter;
_loading = false;
});
}
// increment counter
Future<void> _incrementCounter() async {
setState(() {
_loading = true;
});
try {
await counter?.increment();
await getValue();
} catch (e) {
setState(() {
_error = e.toString();
_loading = false;
});
}
}
Future<void> authenticate() async {
try {
var authClient = WebAuthProvider(
scheme: "identity",
path: 'auth',
authUri:
Uri.parse('https://1de7-2401-4900-1c35-870c-ccd1-a875-346-c71b.ngrok-free.app'),
useLocalPage: true);
await authClient.login(
// AuthClientLoginOptions()..canisterId = "rdmx6-jaaaa-aaaaa-aaadq-cai"
);
// var loginResult = await authClient.isAuthenticated();
_identity = authClient.getIdentity();
await counter?.setAgent(newIdentity: _identity);
isAnon();
} on PlatformException catch (e) {
setState(() {
_status = 'Got error: $e';
});
}
}
@override
Widget build(BuildContext context) {
var logginButton =
(_identity == null || _identity!.getPrincipal().isAnonymous())
? MaterialButton(
onPressed: () async {
await authenticate();
},
child: Text('Login Button'),
)
: SizedBox.shrink();
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
_status ?? '',
),
Text(
_error ?? 'The canister counter is now:',
),
Text(
_loading ? 'loading...' : '$_counter',
style: Theme.of(context).textTheme.headline4,
),
logginButton
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
中页应用登录页面👇
import { ActorSubclass } from "@dfinity/agent";
import { AuthClient } from "@dfinity/auth-client";
import { html, render } from "lit-html";
import { renderIndex } from ".";
import { _SERVICE } from "../../../declarations/whoami/whoami.did";
const content = () => html`<div class="container">
<style>
#whoami {
border: 1px solid #1a1a1a;
margin-bottom: 1rem;
}
</style>
<h1>Internet Identity Client</h1>
<h2>You are authenticated!</h2>
<p>To see how a canister views you, click this button!</p>
<button type="button" id="whoamiButton" class="primary">Who am I?</button>
<input type="text" readonly id="whoami" placeholder="your Identity" />
<button id="logout">log out</button>
<button id="redirectToApp">Back to App</button>
</div>`;
export const renderLoggedIn = (
actor: ActorSubclass<_SERVICE>,
authClient: AuthClient
) => {
render(content(), document.getElementById("pageContent") as HTMLElement);
(document.getElementById("whoamiButton") as HTMLButtonElement).onclick =
async () => {
try {
const response = await actor.whoami();
(document.getElementById("whoami") as HTMLInputElement).value =
response.toString();
} catch (error) {
console.error(error);
}
};
(document.getElementById("logout") as HTMLButtonElement).onclick =
async () => {
await authClient.logout();
renderIndex(authClient);
};
(document.getElementById("redirectToApp") as HTMLButtonElement).onclick =
() => {
window.location.href = 'myapp://callback';
};
};
AndroidManifest.XML
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.auth_counter">
<application
android:label="auth_counter"
android:icon="@mipmap/ic_launcher">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize"
android:exported="true">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="@drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="myapp" android:host="callback"/>
</intent-filter>
</activity>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
我尝试在主网和本地使用互联网身份，但没有任何效果。
检查了包装代码，一切似乎都很好。
我感觉我失去了一些东西。
如果有人可以帮助我，那将是一个很大的帮助:)
@somya-sahu 这方面运气好吗？你成功了吗？