Android - Proguard 重复 zip 条目错误 - Android 支持库

Question

我正在尝试在使用 android 库项目的 android 应用程序 中使用 Proguard。 我的核心 android 项目依赖于两个 android 库项目。核心和库项目依赖于 android 支持库（在我的例子中：android-support-v4.jar）。 当我尝试使用 ProGuard 对其进行混淆时，我总是会收到以下错误（如果在 Gradle 脚本中禁用了 Proguarg，则编译工作正常。）：

:MYANDROIDPROJECT:proguardDemoRelease FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':MYANDROIDPROJECT:proguardDemoRelease'.
> java.io.IOException: Can't write [MYANDROIDPROJECT_PATH\build\intermediates\classes-proguard\demo\release\classes.jar] (Can't read [MYANDROIDPROJECT_PATH\build\intermediates\exploded-aar\com.android.support\support-v4\21.0.3\classes.jar(;;;;;;!META-INF/MANIFEST.MF)] (Duplicate zip entry [classes.jar:android/support/v4/graphics/drawable/DrawableCompat$HoneycombDrawableImpl.class]))

我的核心项目的 Gradle 构建脚本：

buildscript {
    repositories {
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.2+'
    }
}

apply plugin: 'android'

android {
    buildToolsVersion "19.1.0"
    compileSdkVersion 19

    lintOptions {
        abortOnError false
    }

    signingConfigs {
        localks {
            storeFile file("keystore/keystore")
            storePassword "xx"
            keyAlias "xx"
            keyPassword "xx"
        }
    }

    buildTypes {
        debug {
            debuggable true
            runProguard false       
            zipAlign true
            signingConfig signingConfigs.localks
        }

        release {
            debuggable false   
            zipAlign true
            proguardFile 'proguard.txt'
            runProguard true        
            signingConfig signingConfigs.localks
        }
    }

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 19
        ndk{
            moduleName "S3DClient"
            abiFilter "armeabi-v7a"
            stl "gnustl_static"
        }
    }

    sourceSets {
        main {
            manifest.srcFile 'src/main/AndroidManifest.xml'
            java.srcDirs = ['src/main/java']
            resources.srcDirs = ['src/main/java']
            aidl.srcDirs = ['src/main/java']
            renderscript.srcDirs = ['src/main/java']
            res.srcDirs = ['src/main/res']
            assets.srcDirs = ['src/main/assets']
            jni.srcDirs = []
        }
        paid {
            manifest.srcFile 'src/paid/AndroidManifest.xml'
            java.srcDirs = ['src/paid/java']
            res.srcDirs = ['src/paid/res']

            jni.srcDirs = []
        }
        demo {
            manifest.srcFile 'src/demo/AndroidManifest.xml'
            java.srcDirs = ['src/demo/java']
            res.srcDirs = ['src/demo/res']

            jni.srcDirs = []
        }
    }

    productFlavors {
        paid {
            applicationId = "hu.myprojectpackage1"
        }
        demo {
            applicationId = "hu.myprojectpackage2"
        }
    }
}

dependencies {
    compile files('src/main/libs/sqliteassethelper-2.0.1.jar',
                  'src/main/libs/S3DXAndroidTools.jar',
                  'src/main/libs/roboguice-2.0.jar',
                  'src/main/libs/open-javageom.jar',
                  'src/main/libs/openawt.geom.jar',
                  'src/main/libs/libGoogleAnalyticsServices.jar',
                  'src/main/libs/javax.inject-1.jar',
                  'src/main/libs/guice-3.0-no_aop.jar',
                  'src/main/libs/commons-lang3-3.1.jar',
                  'src/main/libs/bugsense-3.6.jar')
    compile fileTree(dir: "$buildDir/native-libs", include: '*.jar')

    compile 'com.android.support:support-v4:21.0.+'

    compile project(":lib/SlidingLayer")

    compile project(':lib/BlutoothCommunicationHandler') 
    paidCompile project(':lib/Licencing')
}

其中一个库项目的 Gradle 构建脚本：

apply plugin: 'android-library'

buildscript {
    repositories {
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.2+'
    }
}
dependencies {
   compile "com.android.support:support-v4:19.0.+"
}

android {
    buildToolsVersion "19.1.0"
    compileSdkVersion 19

    defaultConfig {
        minSdkVersion 4
        targetSdkVersion 18
    }
    dexOptions {
        preDexLibraries = false
    }

    lintOptions {
        abortOnError false
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            res.srcDirs = ['res']
        }
    }
}

ProGuard 配置的（相关部分）是：

-libraryjars src/main/libs/android-support-v4.jar

-keep class android.** { *; }
-keep class android.support** { *; }

-dontnote
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*

-dontwarn org.openawt.**
-dontwarn android.support.**

-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose

-assumenosideeffects class android.util.Log {
    public static *** e(...);
    public static *** w(...);
    public static *** wtf(...);
    public static *** d(...);
    public static *** v(...);
}
-keepattributes Signature
-keepattributes *Annotation*

Answer 1

主项目build.gradle:

花一些时间来转换这些本地 jar：

dependencies {
    compile files('src/main/libs/sqliteassethelper-2.0.1.jar',
                  'src/main/libs/S3DXAndroidTools.jar',
                  'src/main/libs/roboguice-2.0.jar',
                  'src/main/libs/open-javageom.jar',
                  'src/main/libs/openawt.geom.jar',
                  'src/main/libs/libGoogleAnalyticsServices.jar',
                  'src/main/libs/javax.inject-1.jar',
                  'src/main/libs/guice-3.0-no_aop.jar',
                  'src/main/libs/commons-lang3-3.1.jar',
                  'src/main/libs/bugsense-3.6.jar')
    compile fileTree(dir: "$buildDir/native-libs", include: '*.jar')

    compile 'com.android.support:support-v4:21.0.+'

    compile project(":lib/SlidingLayer")

    compile project(':lib/BlutoothCommunicationHandler') 
    paidCompile project(':lib/Licencing')
}

到可以轻松管理的 Maven 依赖项（我尝试为您找到其中的大部分！）：

dependencies {
    // compile fileTree(dir: 'libs', include: '*.jar') // all others
    compile 'com.readystatesoftware.sqliteasset:sqliteassethelper:2.0.1'
    compile file('src/main/libs/S3DXAndroidTools.jar')
    compile 'org.roboguice:roboguice:2.0' // latest is 3.0.1
    compile 'com.google.android.gms:play-services:6.1.71' // latest is 6.8.57 (issues)
    compile 'org.apache.commons:commons-lang3:3.3.2'
    compile 'com.bugsense.trace:bugsense:3.6'
    compile fileTree(dir: "$buildDir/native-libs", include: '*.jar')
    compile 'com.android.support:support-v4:21.0.3'
    compile project(":lib/SlidingLayer")
    compile project(':lib/BlutoothCommunicationHandler') 
    paidCompile project(':lib/Licencing')
}

之后，你应该可以使用android.packagingOptions：

    packagingOptions {
        exclude '.readme'
        exclude 'LICENSE.txt'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LGPL2.1'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/README.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/services/javax.annotation.processing.Processor'
    }

图书馆项目build.gradle

您的库项目需要更改为：

dependencies {
   compile "com.android.support:support-v4:19.0.+"
}

到：

dependencies {
   compile 'com.android.support:support-v4:21.0.3'
}

您的主要问题是您有两个不同的com.android.support:support-v4，一个在您的库项目中，一个在您的主项目中。