Multidex、Proguard 和 Firebase
Multidex, Proguard and Firebase
当我将 Firebase 身份验证和数据库添加到我的项目时,出现以下问题:
FATAL EXCEPTION: main Process: com.myapp, PID: 4024 java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/lib/arm64, /system/lib64, /system/vendor/lib64]]
于是app就关闭了,我上网查了下可能是Multidex,但是我尝试添加Multidex,出现如下错误:
FATAL EXCEPTION: main Process: com.myapp, PID: java.lang.ClassNotFoundException: Didn't find class ".MyApplication" on path: DexPathList[[zip file "/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/lib/arm64, /system/lib64, /system/vendor/lib64]]
这是我的 gradle 文件:
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
defaultConfig {
applicationId "com.company.myapp"
minSdkVersion 16
targetSdkVersion 29
versionCode 1
versionName "1.0.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile 'com.google.firebase:firebase-auth:+'
compile 'com.google.firebase:firebase-database:+'
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'androidx.multidex:multidex:2.0.0+'
compile 'androidx.appcompat:appcompat:1.0.0'
compile 'androidx.legacy:legacy-support-v4:1.0.0'
compile 'com.google.android.material:material:1.0.0-rc01'
compile 'androidx.cardview:cardview:1.0.0'
}
如某些论坛所述,应用程序必须包含 MyApplication class
public class MyApplication extends Application {
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this); } }
并且在应用程序标签中
android:name="MyApplication"
我试图用 proguard 维护 FirebaseInitProvider class 但它没有用。该应用程序也停止工作了!
我还检查了 dex 文件,FirebaseInitProvider 在 APK 中。
有什么解决办法吗?
将此添加到您的混淆器文件
-keep class com.google.firebase.** { *; }
当我将 Firebase 身份验证和数据库添加到我的项目时,出现以下问题:
FATAL EXCEPTION: main Process: com.myapp, PID: 4024 java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/lib/arm64, /system/lib64, /system/vendor/lib64]]
于是app就关闭了,我上网查了下可能是Multidex,但是我尝试添加Multidex,出现如下错误:
FATAL EXCEPTION: main Process: com.myapp, PID: java.lang.ClassNotFoundException: Didn't find class ".MyApplication" on path: DexPathList[[zip file "/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.myapp-NTr4rdWkzRUXkEy5dItLzQ==/lib/arm64, /system/lib64, /system/vendor/lib64]]
这是我的 gradle 文件:
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
defaultConfig {
applicationId "com.company.myapp"
minSdkVersion 16
targetSdkVersion 29
versionCode 1
versionName "1.0.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile 'com.google.firebase:firebase-auth:+'
compile 'com.google.firebase:firebase-database:+'
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'androidx.multidex:multidex:2.0.0+'
compile 'androidx.appcompat:appcompat:1.0.0'
compile 'androidx.legacy:legacy-support-v4:1.0.0'
compile 'com.google.android.material:material:1.0.0-rc01'
compile 'androidx.cardview:cardview:1.0.0'
}
如某些论坛所述,应用程序必须包含 MyApplication class
public class MyApplication extends Application {
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this); } }
并且在应用程序标签中
android:name="MyApplication"
我试图用 proguard 维护 FirebaseInitProvider class 但它没有用。该应用程序也停止工作了!
我还检查了 dex 文件,FirebaseInitProvider 在 APK 中。
有什么解决办法吗?
将此添加到您的混淆器文件
-keep class com.google.firebase.** { *; }