如何保护类免遭MINIFY_ENABLED删除? [英] How to protect classes from being removed by MINIFY_ENABLED?

问题描述

我在我的项目中使用FirebaseFirestore.当我处于调试模式时，即我将minifyEnabled设置为FALSE，该应用程序运行得很好，但是当我构建一个签名的.apk时，它无法按我的预期工作，即，它不会从Firebase Firestore加载数据.

I am using FirebaseFirestore in my project. When i am in debug mode, that is I set the minifyEnabled to FALSE, the app runs just fine, but when I build a signed .apk it doesn't work as I expect, i.e it doesn't load data from firebase Firestore.

我曾尝试在测试过程中将minifyEnabled启用为true，但是除非您生成发行版，否则实际上不会收缩项目.

I have tried enabling minifyEnabled to true while testing, but that won't actually shrink project unless you're generating a release.

我应该写哪些KEEP语句来排除FIREBASE FIRESTORE和Glide类的缺点?

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'

implementation 'com.google.firebase:firebase-core:16.0.9'
implementation 'com.google.firebase:firebase-firestore:19.0.0'
implementation 'com.google.firebase:firebase-ads:17.2.0'

testImplementation 'junit:junit:4.12'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.android.support:design:28.0.0'
//glide library
implementation 'com.github.bumptech.glide:glide:4.9.0' }

proguard-rules.pro

# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}

# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

我的proguard配置

buildTypes {
        release {
            minifyEnabled true
            shrinkResources false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),


                    'proguard-rules.pro'
        }
    }

proguard-android-optimize.txt-3.4.1

# This is a configuration file for ProGuard.
# http://proguard.sourceforge.net/index.html#manual/usage.html
#
# Starting with version 2.2 of the Android plugin for Gradle, this file is distributed together with
# the plugin and unpacked at build-time. The files in $ANDROID_HOME are no longer maintained and
# will be ignored by new version of the Android plugin for Gradle.

# Optimizations: If you don't want to optimize, use the proguard-android.txt configuration file
# instead of this one, which turns off the optimization flags.
# Adding optimization introduces certain risks, since for example not all optimizations performed by
# ProGuard works on all versions of Dalvik.  The following flags turn off various optimizations
# known to have issues, but the list may not be complete or up to date. (The "arithmetic"
# optimization can be used if you are only targeting Android 2.0 or later.)  Make sure you test
# thoroughly if you go this route.
-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
-optimizationpasses 5
-allowaccessmodification

-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose

# Preserve some attributes that may be required for reflection.
-keepattributes *Annotation*,Signature,InnerClasses,EnclosingMethod

-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService
-keep public class com.google.android.vending.licensing.ILicensingService
-dontnote com.android.vending.licensing.ILicensingService
-dontnote com.google.vending.licensing.ILicensingService
-dontnote com.google.android.vending.licensing.ILicensingService

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
    native <methods>;
}

# Keep setters in Views so that animations can still work.
-keepclassmembers public class * extends android.view.View {
    void set*(***);
    *** get*();
}

# We want to keep methods in Activity that could be used in the XML attribute onClick.
-keepclassmembers class * extends android.app.Activity {
    public void *(android.view.View);
}

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keepclassmembers class * implements android.os.Parcelable {
    public static final ** CREATOR;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}

# Preserve annotated Javascript interface methods.
-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}

# The support libraries contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version. We know about them, and they are safe.
-dontnote android.support.**
-dontnote androidx.**
-dontwarn android.support.**
-dontwarn androidx.**

# This class is deprecated, but remains for backward compatibility.
-dontwarn android.util.FloatMath

# Understand the @Keep support annotation.
-keep class android.support.annotation.Keep
-keep class androidx.annotation.Keep

-keep @android.support.annotation.Keep class * {*;}
-keep @androidx.annotation.Keep class * {*;}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <methods>;
}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <methods>;
}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <fields>;
}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <fields>;
}

-keepclasseswithmembers class * {
    @android.support.annotation.Keep <init>(...);
}

-keepclasseswithmembers class * {
    @androidx.annotation.Keep <init>(...);
}

# These classes are duplicated between android.jar and org.apache.http.legacy.jar.
-dontnote org.apache.http.**
-dontnote android.net.http.**

# These classes are duplicated between android.jar and core-lambda-stubs.jar.
-dontnote java.lang.invoke.**

推荐答案

解决方案: ProGuard重命名几乎每个类.并将其重命名为我的模型类(pojo)，我将其用于封装Firestore的数据，而在我的案例中，firestore只识别了该名称"Upload".

SOLUTION: the ProGuard renames almost every class. And it renamed my model class (pojo), that which i used for encapsulating data for the Firestore, and firestore only recognized that name in my case "Upload".

，但是当proguard重命名它时，它将"Upload"类命名为"j" 并且，firestore SDK无法识别"j".

but when the proguard renamed it, it named the "Upload" class as " j " and, the firestore SDK didn't recognize "j".

就是问题所在.

我添加了 带有"Upload"类的"@Keep"注释和我的问题已解决.

i added "@Keep" annotation with "Upload" class and my problem was solved.

@Keep
public class Upload{
.....
.....
}

这篇关于如何保护类免遭MINIFY_ENABLED删除?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！