Question

我在开发期间成功构建了应用程序的调试版，尽管伴随着以下警告：

"W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable.

当我执行fullRelease构建时，我遇到以下错误：

Error:Execution failed for task   ':app:transformClassesAndResourcesWithProguardForFullRelease'.
> java.io.IOException: Can't write  [/PATH_TO_APP/app/build/intermediates/transforms/proguard/full/release/jar s/3/1f/main.jar] (Can't read  [/PATH_TO_APP/app/build/intermediates/exploded- aar/com.android.support/support- fragment/24.2.1/jars/classes.jar(;;;;;;**.class)] (Duplicate zip entry  [android/support/v4/app/r.class ==  classes.jar:android/support/v4/app/Fragment$1.class]))

我正在整合支持库，以便在Android 6.0+中使用AppCompat权限。以下是我的build.gradle文件。

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion '24.0.3'
    useLibrary 'org.apache.http.legacy'
ext {
    supportLibVersion = '24.2.1'
}

lintOptions {
    abortOnError false
}

defaultConfig {
    applicationId "com.whatever.appname"
    testApplicationId 'com.whatever.appname'
    versionCode 8
    minSdkVersion 9
    targetSdkVersion 24
}

buildTypes {
    debug {
        debuggable true
        minifyEnabled false
        signingConfig signingConfigs.debug
    }
    release {
        debuggable false
        minifyEnabled true
        shrinkResources true
        proguardFile 'PATH_TO_PROGUARD/proguard-project.txt'
    }
}

signingConfigs {
    release {
        keyPassword 'PASSWORD'
        storePassword 'PASSWORD'
        keyAlias 'ALIAS'
        storeFile file('PATH_TO_KEYSTORE/keystore_file')
    }
    debug {
        keyAlias 'KEY_ALIAS'
        keyPassword 'PASSWORD'
        storePassword 'PASSWORD'
        storeFile file('PATH_TO_DEBUG_KEYSTORE/debug.keystore')
    }
}
productFlavors {
    full {
        versionName '10.6.0'
        applicationId 'com.whatever.appname'
        testApplicationId 'APP_TEST_ID'
        versionCode 8
        proguardFile '/PATH_TO_PROGUARD/proguard-project.txt'
        signingConfig signingConfigs.release
        targetSdkVersion 24
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7
}

packagingOptions {
    exclude 'META-INF/DEPENDENCIES.txt'
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/NOTICE.txt'
    exclude 'META-INF/NOTICE'
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/DEPENDENCIES'
    exclude 'META-INF/notice.txt'
    exclude 'META-INF/license.txt'
    exclude 'META-INF/dependencies.txt'
    exclude 'META-INF/LGPL2.1'
}
dependencies {
    compile 'ch.acra:acra:4.7.0'
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:support-compat:24.2.1'
    compile 'com.android.support:support-core-utils:24.2.1'
    compile 'com.android.support:support-core-ui:24.2.1'
    compile 'com.android.support:design:24.2.1'
    compile 'com.android.support:support-annotations:24.2.1'
    compile fileTree(include: ['*.jar'], dir: 'libs')
}

在我的proguard-project.txt文件中，由于使用了一些已弃用的类，我的应用程序的一些相关和特定条目是：

-keep class org.apache.http.** { *; }
-dontwarn org.apache.commons.**
-dontwarn org.apache.http.**
-dontwarn android.net.http.AndroidHttpClient
-dontwarn com.google.android.gms.**
-dontwarn com.android.volley.toolbox.**
-ignorewarnings

对于那些好奇的人，当我从构建中完全删除proguard进程并执行应用程序清理，然后是fullRelease构建时，我遇到的错误是不同的：

Error:Error converting bytecode to dex:
Cause: com.android.dex.DexException: Multiple dex files define     Landroid/support/graphics/drawable/AnimatedVectorDrawableCompat$1;

和

Error:Execution failed for task  ':app:transformClassesWithDexForFullRelease'.
> com.android.build.api.transform.TransformException:   com.android.ide.common.process.ProcessException:    java.util.concurrent.ExecutionException:    java.lang.UnsupportedOperationException

任何人都可以了解我遇到的错误，并可能建议一个解决方法吗？当然，我最好将proguard流程纳入构建过程。

更新：此外，当从命令行运行任何gradle任务时，我遇到了错误：

problem occurred evaluating project ':app'.
> java.lang.UnsupportedClassVersionError:   com/android/build/gradle/AppPlugin : Unsupported major.minor version 52.0

让我相信AppCompat或Support库中的某个地方正在使用Java 8语言功能，而我正在编译Java 7。

Answer 1

不确定配偶，但如果我是你，我试着看看这个

compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.android.support:support-compat:24.2.1'

也许appcompact和支持紧凑并没有完全顺利。尝试删除appcompact并使用支持（或反之亦然）

希望有所帮助

Answer 2

我的问题的解决方案是一个配置解决方案，它支持文档Use Java 8 Language Features中描述的Java 8语言功能。

我采取的解决问题的确切步骤是：将以下内容添加到build.gradle defaultConfig部分。

import sys
import tweepy
import json

consumer_key = 'XXXX'
consumer_secret = 'XXXX'
access_key = 'XXXX'
access_secret = 'XXXX'

auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_key, access_secret)
api = tweepy.API(auth)
file = open('today.txt', 'a')

class CustomStreamListener(tweepy.StreamListener):
    def on_status(self, status):
        print (status.text)

    def on_data(self, data):
        json_data = json.loads(data)
        file.write(str(json_data))

    def on_error(self, status_code):
        print >> sys.stderr, 'Encountered error with status code:', status_code
        return True # Don't kill the stream

    def on_timeout(self):
        print >> sys.stderr, 'Timeout...'
        return True # Don't kill the stream

sapi = tweepy.streaming.Stream(auth, CustomStreamListener())
sapi.filter(track=['twitter'])

将以下内容添加到build.gradle buildTypes，debug＆amp;分别发布：

jackOptions {
    enabled true
}

将build.gradle sourceCompatability和targetCompatability Java版本从VERSION_1_7更改为以下

debug{
    shrinkResources false
}
release {
    shrinkResources false
}

执行这些更改后，我执行了clean和Build，并且能够成功构建应用程序。

使用支持库失败构建的Android build.gradle

2 个答案: