无法使用 ProGuard 实例化 AndroidPlatform 类
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【中文标题】无法使用 ProGuard 实例化 AndroidPlatform 类【英文标题】：Failed to instantiate AndroidPlatform class using ProGuard 【发布时间】：2019-11-22 10:51:56 【问题描述】：期待
当根据 android documentation、Crashlytics 和 Proguard 启用 minifyEnabled 和 shrinkResources 时，Android 应用构建的release 版本预计会成功运行。
观察
此问题的代码可以在 Coinverse 的 open-sourced GitHub repository 中找到。
release 版本的应用在从 Google Play 下载后打开后立即崩溃。
如果没有minifyEnabled 和shrinkResources，应用程序在生产环境中会按预期运行，应用程序大小从~4mb 到~10mb。
错误日志表明这是 Firebase 兼容性的问题，并推荐了这篇 *** 帖子。 - What ProGuard configuration do I need for Firebase on Android?
ProGuard 也有类似的问题 - transformClassesAndResourcesWithProguardForRelease FAILED。
错误
总结
启用 Crashlytics。
Crashlytics Core: Failed to execute task
未启用 Crashlytics。
Failed to instantiate AndroidPlatform class using ProGuard
详情
2020-04-19 12:08:48.137 21704-21704/? E/app.coinverse: Unknown bits set in runtime_flags: 0x8000
2020-04-19 12:08:49.684 21704-21704/app.coinverse E/AndroidRuntime: FATAL EXCEPTION: main
Process: app.coinverse, PID: 21704
java.lang.RuntimeException: Unable to create application app.coinverse.App: java.lang.RuntimeException: Failed to instantiate AndroidPlatform class. Using ProGuard? See http://***.com/questions/26273929/what-proguard-configuration-do-i-need-for-firebase-on-android
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6465)
at android.app.ActivityThread.access$1300(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.RuntimeException: Failed to instantiate AndroidPlatform class. Using ProGuard? See http://***.com/questions/26273929/what-proguard-configuration-do-i-need-for-firebase-on-android
at d.b.a.d.a.a(:69)
at d.b.a.a.a(:974)
at app.coinverse.j.a.<init>(:44)
at app.coinverse.j.b.a(:29)
at app.coinverse.j.b.get(:21)
at app.coinverse.j.b.get(:8)
at e.b.b.get(:47)
at app.coinverse.i.d.a(:107)
at app.coinverse.App.onCreate(:18)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1182)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6460)
at android.app.ActivityThread.access$1300(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.NoSuchMethodException: d.b.a.c.a.<init> [class android.content.Context]
at java.lang.Class.getConstructor0(Class.java:2332)
at java.lang.Class.getConstructor(Class.java:1728)
at d.b.a.d.a.a(:62)
at d.b.a.a.a(:974)
at app.coinverse.j.a.<init>(:44)
at app.coinverse.j.b.a(:29)
at app.coinverse.j.b.get(:21)
at app.coinverse.j.b.get(:8)
at e.b.b.get(:47)
at app.coinverse.i.d.a(:107)
at app.coinverse.App.onCreate(:18)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1182)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6460)
at android.app.ActivityThread.access$1300(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
实施
build.gradle (:app)
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'androidx.navigation.safeargs'
apply plugin: 'kotlin-kapt'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.firebase-perf'
apply plugin: 'io.fabric'
apply plugin: 'de.mannodermaus.android-junit5'
android
compileSdkVersion 29
defaultConfig
applicationId "app.coinverse"
minSdkVersion 24
targetSdkVersion 29
versionCode 57
versionName "0.57"
kotlinOptions jvmTarget = '1.8'
javaCompileOptions
annotationProcessorOptions
arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
sourceSets androidTest.assets.srcDirs += files("$projectDir/schemas".toString())
buildTypes
release
minifyEnabled true
shrinkResources true
proguardFiles getDefaultProguardFile(
'proguard-android-optimize.txt'),
'proguard-rules.pro',
'proguard.cfg'
debug
applicationIdSuffix ".staging"
debuggable true
open
initWith debug
applicationIdSuffix ".open"
compileOptions targetCompatibility JavaVersion.VERSION_1_8
dataBinding.enabled = true
testOptions unitTests.includeAndroidResources = true
dependencies
def lifecycle_version = '2.2.0'
def lifecycle_test_version = '2.1.0'
def nav_version = '2.2.1'
def play_services_version = '17.0.0'
def exoplayer_version = '2.11.1'
def room_version = '2.2.5'
def glide_version = '4.11.0'
def mopub_version = '5.12.0'
def junit_version = '5.5.1'
def test_rules_core_version = '1.2.0'
def fragment_version = '1.2.4'
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.google.dagger:dagger:2.27'
kapt 'com.google.dagger:dagger-compiler:2.27'
implementation "androidx.fragment:fragment-ktx:$fragment_version"
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
implementation "androidx.room:room-runtime:$room_version"
kapt "androidx.room:room-compiler:$room_version"
implementation "androidx.room:room-ktx:$room_version"
implementation "androidx.paging:paging-runtime-ktx:2.1.2"
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.1.1'
implementation "com.google.android.gms:play-services-auth:18.0.0"
implementation "com.google.android.gms:play-services-location:$play_services_version"
implementation 'com.firebase:firebase-client-android:2.5.2'
implementation 'com.google.firebase:firebase-analytics:17.3.0'
implementation 'com.crashlytics.sdk.android:crashlytics:2.10.1'
implementation 'com.google.firebase:firebase-perf:19.0.5'
implementation 'com.google.firebase:firebase-firestore-ktx:21.4.0'
implementation 'com.google.firebase:firebase-functions:19.0.2'
implementation 'com.google.firebase:firebase-auth:19.3.0'
implementation 'com.firebaseui:firebase-ui-firestore:4.2.0'
implementation 'com.firebaseui:firebase-ui-auth:4.2.1'
implementation 'com.google.firebase:firebase-storage:19.1.1'
implementation 'com.google.firebase:firebase-inappmessaging-display:19.0.4'
implementation 'com.google.firebase:firebase-config:19.1.3'
implementation 'com.jjoe64:graphview:4.2.2'
implementation "com.google.android.exoplayer:exoplayer-core:$exoplayer_version"
implementation "com.google.android.exoplayer:exoplayer-ui:$exoplayer_version"
implementation files('libs/YouTubeAndroidPlayerApi.jar')
implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
implementation "com.github.bumptech.glide:glide:$glide_version"
kapt "com.github.bumptech.glide:compiler:$glide_version"
implementation("com.mopub:mopub-sdk-native-static:$mopub_version") transitive = true
implementation("com.mopub:mopub-sdk-native-video:$mopub_version") transitive = true
implementation 'com.facebook.android:audience-network-sdk:5.8.0'
implementation 'com.mopub.mediation:facebookaudiencenetwork:5.8.0.0'
implementation 'com.flurry.android:ads:12.3.0'
implementation 'com.flurry.android:analytics:12.3.0'
implementation 'com.mopub.mediation:flurry:12.0.3.1'
// Testing
// Local Unit
testImplementation "org.junit.jupiter:junit-jupiter-api:$junit_version"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junit_version"
testImplementation "org.junit.jupiter:junit-jupiter-params:$junit_version"
testImplementation "io.mockk:mockk:1.9.3"
testImplementation 'org.assertj:assertj-core:3.13.2'
debugImplementation "androidx.fragment:fragment-testing:$fragment_version"
testImplementation "androidx.arch.core:core-testing:$lifecycle_test_version"
testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.3.2"
// AndroidX - JVM
testImplementation "androidx.test:core-ktx:1.2.0"
testImplementation "androidx.test.ext:junit-ktx:1.1.1"
testImplementation "androidx.test:rules:$test_rules_core_version"
testImplementation "androidx.test:core:$test_rules_core_version"
build.gradle (android)
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript
ext.kotlin_version = '1.3.71'
repositories
google()
jcenter()
mavenCentral()
maven url 'https://maven.google.com'
maven url 'https://maven.fabric.io/public'
dependencies
classpath 'com.android.tools.build:gradle:3.6.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.google.gms:google-services:4.3.3'
classpath 'com.google.firebase:perf-plugin:1.3.1'
classpath 'io.fabric.tools:gradle:1.31.2'
classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0"
classpath "de.mannodermaus.gradle.plugins:android-junit5:1.5.1.0"
allprojects
repositories
google()
jcenter()
maven url 'https://maven.google.com/'
maven url "https://s3.amazonaws.com/moat-sdk-builds"
task clean(type: Delete)
delete rootProject.buildDir
App.kt
应用的发行版在尝试初始化 FirebaseHelper.kt 类时崩溃。
class App : Application()
val component = DaggerComponent.builder()
.utilsModule(UtilsModule(this))
.build()
override fun onCreate()
super.onCreate()
// Here is where the crash occurs.
component.firebaseHelper()
MoPub.initializeSdk(this, SdkConfiguration.Builder(AD_UNIT_ID).build(), initSdkListener())
private fun initSdkListener() = SdkInitializationListener /* MoPub SDK initialized.*/
FirebaseHelper.kt
@Singleton
class FirebaseHelper @Inject constructor(context: Context)
private val LOG_TAG = FirebaseHelper::class.java.simpleName
init
if (BuildConfig.BUILD_TYPE == open.name)
var openSharedStatus = false
FirebaseApp.getApps(context).map app ->
if (app.name.equals(open.name))
openSharedStatus = true
if (!openSharedStatus)
FirebaseApp.initializeApp(
context,
FirebaseOptions.Builder()
.setApplicationId(APP_ID_OPEN_SHARED)
.setApiKey(APP_API_KEY_OPEN_SHARED)
.setDatabaseUrl(DATABASE_URL_OPEN_SHARED)
.setProjectId(PROJECT_ID_OPEN_SHARED)
.setStorageBucket(STORAGE_BUCKET_OPEN_SHARED)
.build(),
open.name)
Firebase.setAndroidContext(context)
initializeRemoteConfig()
private fun initializeRemoteConfig()
val firebaseRemoteConfig = FirebaseRemoteConfig.getInstance()
firebaseRemoteConfig.setConfigSettingsAsync(FirebaseRemoteConfigSettings.Builder().build())
firebaseRemoteConfig.setDefaultsAsync(R.xml.remote_config_defaults)
val cacheExpiration = 3600L
try
firebaseRemoteConfig.fetch(cacheExpiration)
firebaseRemoteConfig.fetchAndActivate()
catch (exception: FirebaseRemoteConfigException)
Crashlytics.log(Log.ERROR, LOG_TAG, "initializeRemoteConfig: $exception.localizedMessage")
尝试解决方案
1.移除 Crashlytics。
A.删除Crashlytics.log(...)的所有实例
B.移除 build.gradle (:app)
中的 Fabric 插件和 Crashlytics 库// apply plugin: 'io.fabric'
...
// implementation 'com.crashlytics.sdk.android:crashlytics:2.10.1'
C.从 build.gradle (android)
中移除 Fabric repositories
...
// maven url 'https://maven.fabric.io/public'
dependencies
...
// classpath 'io.fabric.tools:gradle:1.28.0'
2。使用 Proguard 处理模型对 Firestore 数据库的序列化/反序列化。
A. Add proguard.cfg rules
# Add this global rule
-keepattributes Signature
-keepclassmembers class app.coinverse.analytics.models.**
*;
-keepclassmembers class app.coinverse.analytics.models.ContentAction.**
*;
-keepclassmembers class app.coinverse.analytics.models.UserAction.**
*;
-keepclassmembers class app.coinverse.analytics.models.UserActionCount.**
*;
-keepclassmembers class app.coinverse.feed.models.**
*;
-keepclassmembers class app.coinverse.feed.models.FeedViewState.**
*;
-keepclassmembers class app.coinverse.feed.models.FeedViewState.Content.**
*;
-keepclassmembers class app.coinverse.feed.models.FeedViewState.ContentToPlay.**
*;
-keepclassmembers class app.coinverse.feed.models.FeedViewState.ContentPlayer.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.ExchangeOrderData.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.ExchangeOrdersDataPoints.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.MaximumPercentPriceDifference.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.Order.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.PercentDifference.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.PriceGraphData.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.PriceGraphXAndYConstraints.**
*;
-keepclassmembers class app.coinverse.priceGraph.models.PricePair.**
*;
-keepclassmembers class app.coinverse.user.models.**
*;
-keepclassmembers class app.coinverse.user.models.User.**
*;
-keepclassmembers class app.coinverse.utils.**
*;
# If Enums are used in the database, use 'ADB Clear App Data and Restart', and then re-run.
-keepclassmembers enum * *;
B.定义模型的no-argument constructors。对于已经在 data class 构造函数中定义了默认值的模型，这不应该是必需的。但是，如果没有明确定义无参数构造函数“users does not define no argument constructor”，则会出现错误。
C.通过annotating enum names with @SerializedName 和adding the Proguard rule above to keep enumerations' members 处理枚举。应该只需要其中一种实现。
3. Add proguard.cfg rules 用于 Firebase。
-keep class com.firebase.** *;
-keep class org.apache.** *;
-keepnames class com.fasterxml.jackson.** *;
-keepnames class javax.servlet.** *;
-keepnames class org.ietf.jgss.** *;
-dontwarn org.w3c.dom.**
-dontwarn org.joda.time.**
-dontwarn org.shaded.apache.**
-dontwarn org.ietf.jgss.**
# Only necessary if you downloaded the SDK jar directly instead of from maven.
-keep class com.shaded.fasterxml.jackson.** *;
4. Add pro-guard-rules-release.txt
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules-release.txt'
testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules-test.txt'
【问题讨论】：
【参考方案1】：我遇到了类似的问题，从 Fabric 完全迁移到 Firebase Crashlytics 为我解决了这个问题：https://firebase.google.com/docs/crashlytics/get-started-new-sdk?platform=android&authuser=0
希望这会有所帮助！
【讨论】：
很有希望听到@Tudor S！我将在实施向 Crashlytics 测试版的迁移后报告，看看它是否能解决问题。 我按照文档安装了 Crashlytics 并确认它在 Firebase 控制台中按预期工作。不幸的是，上面的 Proguard 问题仍然存在。下一步是创建一个基本的示例应用来重现问题，以便向 Android 团队提交问题。以上是关于无法使用 ProGuard 实例化 AndroidPlatform 类的主要内容，如果未能解决你的问题，请参考以下文章
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