Android Firebase 身份验证不起作用

Question

对于我的 Android 应用程序，我尝试使用 Firebase 进行身份验证和数据存储。现在，我坚持身份验证。当我的应用程序加载时，错误堆栈跟踪出现在 Android Studio 控制台中。

W/GooglePlayServicesUtil: Cannot find Google Play services package name.

android.content.pm.PackageManager$NameNotFoundException: com.google.android.gms

at android.app.ApplicationPackageManager.getPackageInfo(ApplicationPackageManager.java:137)

at com.google.android.gms.internal.zzrt.getPackageInfo(Unknown Source)

at com.google.android.gms.common.zze.zzby(Unknown Source)

at com.google.android.gms.common.zze.zzbx(Unknown Source)

at com.google.android.gms.common.zze.zzbs(Unknown Source)

at com.google.android.gms.common.zze.isGooglePlayServicesAvailable(Unknown Source)

at com.google.android.gms.common.zzc.isGooglePlayServicesAvailable(Unknown Source)

at com.google.android.gms.common.GoogleApiAvailability.isGooglePlayServicesAvailable(Unknown Source)

at com.google.android.gms.internal.zzqh$zzc.connect(Unknown Source)

at com.google.android.gms.internal.zzqh$zzc.zza(Unknown Source)

at com.google.android.gms.internal.zzqh.zza(Unknown Source)

at com.google.android.gms.internal.zzqh.handleMessage(Unknown Source)

at android.os.Handler.dispatchMessage(Handler.java:98)

at android.os.Looper.loop(Looper.java:148)

at android.os.HandlerThread.run(HandlerThread.java:61)

当我尝试提交我的电子邮件和密码凭据时，会出现以下消息。

07-07 14:19:45.330 7430-7449/com.tech_centric.developmentworkflowfirebase W/DynamiteModule: Local module descriptor class for com.google.firebase.auth not found.

07-07 14:19:45.330 7430-7449/com.tech_centric.developmentworkflowfirebase W/GooglePlayServicesUtil: Google Play Store is missing.

我的项目/build.gradle 看起来像这样:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'
        classpath 'com.google.gms:google-services:3.0.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

我的 project/app/build.gradle 看起来像这样:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.tech_centric.developmentworkflowfirebase"
        minSdkVersion 19
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE-FIREBASE.txt'
        exclude 'META-INF/NOTICE'
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:24.0.0-alpha2'
    compile 'com.android.support:design:24.0.0-alpha2'
    compile 'com.google.firebase:firebase-core:9.2.0'
    compile 'com.google.firebase:firebase-auth:9.2.0'
}

apply plugin: 'com.google.gms.google-services'

为了完成这项工作，我是否缺少某些东西？

Answer 1

• 我不确定您是否已将生成的 google-services.json 文件导入到 app/ 项目的文件夹。如果没有，请点击此链接:https://firebase.google.com/docs/android/setup在“将 Firebase 添加到您的应用程序”部分中。

• 如果它仍然向您显示错误，您可以尝试在 app/的 build.gradle 文件中编辑依赖项 文件夹如下:compile 'com.google.firebase:firebase-core:9.2.0'编译 'com.google.firebase:firebase-auth:9.2.0' 到 compile 'com.google.firebase:firebase-core:9.0.2'编译 'com.google.firebase:firebase-auth:9.0.2'

希望对您有所帮助!