Flutter Firebase 身份驗證與 Google App 崩潰

Question

我正在使用 Flutter 制作“使用 Google 登錄”按鈕，但是當我單擊該按鈕時，應用程序崩潰並退出，盡管我確定 Firebase 已與應用程序正確集成並且 SHA1 正確，並且應用程序與 Firestore 配合良好

這是代碼和錯誤。

錯誤 ：

I/art     (13904): Rejecting re-init on previously-failed class java.lang.Class<com.google.android.gms.auth.api.signin.internal.SignInHubActivity>
I/art     (13904): Rejecting re-init on previously-failed class java.lang.Class<com.google.android.gms.auth.api.signin.internal.SignInHubActivity>
E/flutter (13904): [ERROR:flutter/shell/platform/android/platform_view_android_jni.cc(40)] java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/auth/api/signin/internal/SignInHubActivity;
E/flutter (13904):  at com.google.android.gms.auth.api.signin.internal.zzh.zzc(Unknown Source)
E/flutter (13904):  at com.google.android.gms.auth.api.signin.GoogleSignInClient.getSignInIntent(Unknown Source)
E/flutter (13904):  at io.flutter.plugins.googlesignin.GoogleSignInPlugin$Delegate.signIn(GoogleSignInPlugin.java:291)
E/flutter (13904):  at io.flutter.plugins.googlesignin.GoogleSignInPlugin.onMethodCall(GoogleSignInPlugin.java:77)
E/flutter (13904):  at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:222)
E/flutter (13904):  at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:96)
E/flutter (13904):  at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:643)
E/flutter (13904):  at android.os.MessageQueue.nativePollOnce(Native Method)
E/flutter (13904):  at android.os.MessageQueue.next(MessageQueue.java:331)
E/flutter (13904):  at android.os.Looper.loop(Looper.java:218)
E/flutter (13904):  at android.app.ActivityThread.main(ActivityThread.java:5526)
E/flutter (13904):  at java.lang.reflect.Method.invoke(Native Method)
E/flutter (13904):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
E/flutter (13904):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
E/flutter (13904): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.auth.api.signin.internal.SignInHubActivity" on path: DexPathList[[zip file "/data/app/com.example.tester-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.tester-1/lib/arm, /data/app/com.example.tester-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
E/flutter (13904):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
E/flutter (13904):  at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
E/flutter (13904):  at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
E/flutter (13904):  ... 14 more
E/flutter (13904):  Suppressed: java.lang.NoClassDefFoundError: com.google.android.gms.auth.api.signin.internal.SignInHubActivity
E/flutter (13904):      at dalvik.system.DexFile.defineClassNative(Native Method)
E/flutter (13904):      at dalvik.system.DexFile.defineClass(DexFile.java:226)
E/flutter (13904):      at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
E/flutter (13904):      at dalvik.system.DexPathList.findClass(DexPathList.java:338)
E/flutter (13904):      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
E/flutter (13904):      ... 16 more
E/flutter (13904):  Suppressed: java.lang.ClassNotFoundException: com.google.android.gms.auth.api.signin.internal.SignInHubActivity
E/flutter (13904):      at java.lang.Class.classForName(Native Method)
E/flutter (13904):      at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
E/flutter (13904):      at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
E/flutter (13904):      at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
E/flutter (13904):      ... 15 more
E/flutter (13904):  Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
E/flutter (13904):
F/flutter (13904): [FATAL:flutter/shell/platform/android/platform_view_android_jni.cc(77)] Check failed: CheckException(env).
F/libc    (13904): Fatal signal 6 (SIGABRT), code -6 in tid 13904 (.example.tester)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
UUID: 82d8c901-de47-4729-a4c6-a013707000ca
Build fingerprint: 'Sony/D6503/D6503:6.0.1/23.5.A.1.291/2769308465:user/release-keys'
Revision: '0'
ABI: 'arm'
pid: 13904, tid: 13904, name: .example.tester  >>> com.example.tester <<<
signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
Abort message: '[FATAL:flutter/shell/platform/android/platform_view_android_jni.cc(77)] Check failed: CheckException(env).
'
    r0 00000000  r1 00003650  r2 00000006  r3 b6fe9b7c
    r4 b6fe9b84  r5 b6fe9b34  r6 0000000b  r7 0000010c
    r8 bee23e9c  r9 00000000  sl 00000001  fp b6f7cc11
    ip 00000006  sp bee23d78  lr b6d4ecb1  pc b6d510a0  cpsr 400f0010
backtrace:
    #00 pc 000420a0  /system/lib/libc.so (tgkill+12)
    #01 pc 0003fcad  /system/lib/libc.so (pthread_kill+32)
    #02 pc 0001c463  /system/lib/libc.so (raise+10)
    #03 pc 00019615  /system/lib/libc.so (__libc_android_abort+34)
    #04 pc 00017568  /system/lib/libc.so (abort+4)
    #05 pc 00b0cc63  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #06 pc 00b03411  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #07 pc 00b02107  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #08 pc 00b338ef  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #09 pc 00b0d3c5  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #10 pc 00b107ab  /data/app/com.example.tester-1/lib/arm/libflutter.so (offset 0xafe000)
    #11 pc 00012e03  /system/lib/libutils.so (_ZN7android6Looper9pollInnerEi+530)
    #12 pc 00012ed3  /system/lib/libutils.so (_ZN7android6Looper8pollOnceEiPiS1_PPv+130)
    #13 pc 00082a59  /system/lib/libandroid_runtime.so (_ZN7android18NativeMessageQueue8pollOnceEP7_JNIEnvP8_jobjecti+22)
    #14 pc 72d4655d  /data/dalvik-cache/arm/system@framework@boot.oat (offset 0x1f66000)
Tombstone written to: /data/tombstones/tombstone_08

代碼都在 main.dart 中：

import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_sign_in/google_sign_in.dart';
import 'package:provider/provider.dart';
import 'package:tester/locator.dart';
import 'package:tester/ui/views/HomeView.dart';

import 'core/viewmodels/crudModel.dart';

main(List<String> args) {
  setupLocator();
  runApp(TestApp());
}

class TestApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    SystemChrome.setSystemUIOverlayStyle(
      SystemUiOverlayStyle(statusBarColor: Colors.green),
    );
    return MultiProvider(
      providers: [
        ChangeNotifierProvider(
          builder: (_) => locator<CRUDModel>(),
        )
      ],
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        theme: ThemeData(
          accentColor: Colors.green,
          primaryColor: Colors.green,
        ),
        home: GoogleLoginView(),
      ),
    );
  }
}

class GoogleLoginView extends StatelessWidget {
  final GoogleSignIn _googleSignInObject = GoogleSignIn();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        centerTitle: true,
        title: Text('Google Login'),
      ),
      body: Center(
        child: RaisedButton(
          color: Colors.green,
          splashColor: Colors.greenAccent,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(20),
          ),
          onPressed: _googleSignIn,
          child: Text('Google Sign In'),
        ),
      ),
    );
  }

  Future<void> _googleSignIn() async {
    GoogleSignInAccount _googleSignInAccount =
        await _googleSignInObject.signIn().catchError((e) => print(e));
    GoogleSignInAuthentication _googleSignInAuthentication =
        await _googleSignInAccount.authentication.catchError((e) => print(e));
    await FirebaseAuth.instance.signInWithCredential(
      GoogleAuthProvider.getCredential(
        idToken: _googleSignInAuthentication.idToken,
        accessToken: _googleSignInAuthentication.accessToken,
      ),
    ).catchError((e) => print(e));
  }
}

pubspec.yaml :

name: tester
description: A new Flutter project.

# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1

environment:
  sdk: ">=2.1.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2
  provider: ^3.0.0+1
  get_it: ^1.0.3+2
  cloud_firestore: ^0.12.9
  firebase_core: ^0.4.0+8
  google_sign_in: ^4.0.6
  firebase_auth: ^0.14.0+1

dev_dependencies:
  flutter_test:
    sdk: flutter


# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec

# The following section is specific to Flutter.
flutter:

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  assets:
   - res/images/bag.jpg
   - res/images/computer.jpg
   - res/images/dress.jpg
   - res/images/phone.jpg
   - res/images/shoes.jpg

  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.dev/assets-and-images/#resolution-aware.

  # For details regarding adding assets from package dependencies, see
  # https://flutter.dev/assets-and-images/#from-packages

  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.dev/custom-fonts/#from-packages

Answer 1

我遇到了同樣的問題。 升級到 AndroidX 解決了我的問題。
將您的 Flutter 項目升級到 androidx Android Studio 可以節省時間。

腳步：

1. 要將項目升級到 androidx，請在 Android Studio 中打開 flutter 項目中的android文件夾。

2. 從Refactor菜單中選擇Migrade to AndroidX

3. 並應用遷移更改

4. 運行flutter clean build

Answer 2

在應用級build.gradle

 defaultConfig {      

    minSdkVersion 23

}

在項目級別gradle.properties添加

android.useAndroidX=true
android.enableJetifier=true

在build.gradle添加

dependencies {
    classpath 'com.android.tools.build:gradle:3.2.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    classpath 'com.google.gms:google-services:4.2.0'
}

如果您不使用 Kotlin 支持，則可以跳過該 Kotlin 插件 不要忘記運行flutter clean然后flutter pub upgrade

這些更改幫助我防止了我的應用程序崩潰，它也應該對您有所幫助。

Answer 3

我正在使用firebase_auth：^0.14.0+2
google_sign_in: ^4.0.6

應用級gradle：

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation 'com.google.firebase:firebase-core:17.0.1'
}

得到這個錯誤....

E/AndroidRuntime（5431）：引起：java.lang.NullPointerException：嘗試調用虛擬方法'android.view.View androidx.fragment.app.FragmentActivity.dispatchFragmentsOnCreateView（android.view.View，java.lang.String，android .content.Context, android.util.AttributeSet)' 在一個空對象引用上

完成：flutter clean 清理緩存 flutter upgrade flutter pub get