android - aar 库中的 google_play_services_version 值出错

Question

我有依赖于该库的库和项目。库作为 aar 文件存储在我的私有(private) maven 存储库中。图书馆有不同的依赖关系，其中之一是谷歌地图。所以我在 build.gradle 文件中指定了它，并将 lib manifest 中的元数据标记设置为

<meta-data 
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />

当我尝试编译我的项目时出现错误

No resource found that matches the given name (at 'value' with value '@integer/google_play_services_version')

这是一个常见错误，但我从未见过我用 aar 文件描述的问题。

我的 lib build.gradle 文件

apply plugin: 'com.android.library'
apply plugin: 'com.jfrog.artifactory'
apply plugin: 'maven-publish'

def packageName = 'com.myapplib'
def libraryVersion = '1.0.3'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"
    publishNonDefault true

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 21
    }

    buildTypes {

        def BOOLEAN = "boolean"
        def TRUE = "true"
        def FALSE = "false"
        def LOG_HTTP_REQUESTS = "LOG_HTTP_REQUESTS"
        def LOG_IMAGES_REQUESTS = "LOG_IMAGES_REQUESTS"
        def REPORT_CRASHES = "REPORT_CRASHES"
        def TRACK_GTM = "TRACK_GTM"

        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
            buildConfigField  BOOLEAN, LOG_IMAGES_REQUESTS, FALSE
            buildConfigField  BOOLEAN, LOG_HTTP_REQUESTS, FALSE
            buildConfigField  BOOLEAN, TRACK_GTM, TRUE
            buildConfigField  BOOLEAN, LOG_ERRORS_WITH_GTM, TRUE
            buildConfigField  BOOLEAN, REPORT_CRASHES, TRUE
        }
        debug {
            ext.enableCrashlytics = false
            buildConfigField  BOOLEAN, LOG_IMAGES_REQUESTS, TRUE
            buildConfigField  BOOLEAN, LOG_HTTP_REQUESTS, TRUE
            buildConfigField  BOOLEAN, TRACK_GTM, FALSE
            buildConfigField  BOOLEAN, LOG_ERRORS_WITH_GTM, FALSE
            buildConfigField  BOOLEAN, REPORT_CRASHES, FALSE
        }
    }    
}

dependencies {
    compile 'org.apache.commons:commons-lang3:3.1'
    compile('com.crashlytics.sdk.android:crashlytics:2.3.2@aar') {
        transitive = true;
    }
    compile 'com.android.support:support-v4:22.1.+'
    //Explicitly specified maps version
    compile('com.google.android.gms:play-services-maps:7.5.0@aar') {
        transitive = true;
    }
}

publishing {
    publications {
        aar(MavenPublication) {
            groupId packageName
            version = libraryVersion
            artifactId project.getName()

            // Tell maven to prepare the generated "*.aar" file for publishing
            artifact("$buildDir/outputs/aar/${project.getName()}-release.aar")
        }
    }
}

artifactory {
    contextUrl = 'http://myapp.com/artifactory'
    publish {
        repository {
            // The Artifactory repository key to publish to
            repoKey = 'libs-release-local'

            username = "admin"
            password = "password"
        }
        defaults {
            // Tell the Artifactory Plugin which artifacts should be published to Artifactory.
            publications('aar')
            publishArtifacts = true

            // Properties to be attached to the published artifacts.
            properties = ['qa.level': 'basic', 'dev.team': 'core']
            // Publish generated POM files to Artifactory (true by default)
            publishPom = true
        }
    }
}

lib list

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.myapplib"
android:versionCode="4"
android:versionName="1.0.3">

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="21" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<application
    android:name="com.myapplib.app.MyApplication"
    android:allowBackup="true"
    android:icon="@drawable/ic_logo"
    android:theme="@style/AppTheme" >
    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />
    <activity
        android:name="com.myapplib.gui.LaunchActivity"
        android:label="@string/app_name" >
    </activity>
    <activity
        android:name="com.myapplib.gui.LandingPageActivity"
        android:noHistory="true"
        android:label="@string/app_name" >
    </activity>
    <activity
        android:name="com.myapplib.gui.PreferenceActivity"
        android:noHistory="true"
        android:label="@string/app_name" >
    </activity>
</application>
</manifest>

我的项目 list

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.myapp"
android:versionCode="8"
android:versionName="1.0.7">

<application
    android:name="com.myapp.app.MyApplication"
    android:allowBackup="true"
    android:icon="@drawable/app_logo"
    android:label="@string/app_name"
    android:largeHeap="true"
    android:theme="@style/AppTheme"
    tools:replace="icon">
    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="@string/google_api_key" />

    <meta-data
        android:name="com.crashlytics.ApiKey"
        android:value="${crashlytics-api-key}" />
</application>

</manifest>

我的应用程序 build.gradle

apply plugin: 'com.android.application'

apply plugin: 'io.fabric'

android {
    compileSdkVersion 15
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "com.myapp"
        minSdkVersion 15
        targetSdkVersion 22
    }
}

dependencies {
    compile(group: 'com.myapplib', name: 'myapplib', version: '1.0.3', ext: 'aar')    
}

所以主要逻辑在库中。项目只是有一些风格变化。正如我在 aar 文件中看到的那样，有 R.txt 文件，其中包含库中的所有值和参数，还有行

int integer google_play_services_version 0x7f080002

但无论如何每次我编译项目时都会出错。我该如何解决这个问题？
一个最简单和糟糕的解决方案是在我的库中硬编码这个值，但我认为这很糟糕。

另一个大问题是为什么我需要在我的 list 值中指定仅在该库中使用的库？为什么不在内部使用它并让开发没有这个问题

Answer 1

我认为这不尊重播放资源，因为您对 aar 没有短暂的依赖。您正在使用仅 Artifact 表示法 ( see Section 52.4.1.2 ) 导入自己的 aar。如果您希望依赖项具有传递性，则必须明确将它们设置为如此(就像您在库构建文件中所做的那样。

dependencies {
    compile(group: 'com.myapplib', name: 'myapplib', version: '1.0.3', ext: 'aar')  {
        transitive = true;
    }
}