Gradle android 为不同的处理器架构构建 [英] Gradle android build for different processor architectures

问题描述

我想使用 Gradle 为 4 个不同的 Android CPU 处理器架构(armeabi armeabi-v7a x86 mips)构建 4 个单独的 apk.

I want to build 4 separate apks for 4 different Android CPU processor architectures (armeabi armeabi-v7a x86 mips) using Gradle.

我在 libs 文件夹中有为 4 个 CPU 架构构建的原生 OpenCV 库.

I have native OpenCV libraries built for 4 CPU architectures in the libs folder.

libs
    -armeabi
    -armeabi-v7a
    -x86
    -mips

我希望每个 apk 只包含对应正确 CPU 架构的 OpenCV 库.

I want to each apk only contains the OpenCV library corresponding to the correct CPU architecture.

当前构建脚本如下:

apply plugin: 'android'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':workspace:OpenCV4Android:sdk:java')
}

android {
    compileSdkVersion 11
    buildToolsVersion "18.1.0"

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

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')

        flavorGroups "abi", "version"
        productFlavors {
            x86 {
                flavorGroup "abi"
            }
            arm {
                flavorGroup "abi"
            }
            mips {
                flavorGroup "abi"
            }
        }

    }
}

有人可以帮我解决这个问题吗?

Can someone help me to resolve this please?

干杯，

推荐答案

从 Android Gradle 插件版本 13 开始，您现在可以使用新的拆分"机制生成单独的 APK.你可以阅读它这里.

As of Android Gradle Plugin version 13 you can now generate seperate APK's using the new "split" mechanism. You can read about it here.

放置 .so 文件的默认文件结构是:

The default file structure for placing your .so files is:

src
-main
  -jniLibs
    -armeabi
      -arm.so
    -armeabi-v7a
      -armv7.so
    -x86
      -x86.so
    -mips
      -mips.so

请注意，.so 文件的名称并不重要，只要它具有 .so 扩展名.

Note that the name of the .so file is unimportant as long as it has the .so extension.

然后在你的 Gradle 构建文件中:

Then in your Gradle build file:

android {
...
splits {
abi {
  enable true
  reset()
  include 'x86', 'armeabi-v7a', 'mips', 'armeabi'
  universalApk false
  }
 }
}

和

// map for the version code
ext.versionCodes = ['armeabi-v7a':1, mips:2, x86:3]

import com.android.build.OutputFile

android.applicationVariants.all { variant ->
    // assign different version code for each output
    variant.outputs.each { output ->
        output.versionCodeOverride =
            project.ext.versionCodes.get(output.getFilter(OutputFile.ABI)) * 1000000 + android.defaultConfig.versionCode
    }
}

请注意，上面 ext.versionCodes 中的版本代码在很大程度上是无关紧要的，这是为每个 ABI 类型添加唯一的偏移量，因此版本代码不会冲突.

Note that the version codes above in ext.versionCodes are largely irrelevant, this is here to add a unique offset for each ABI type so version codes do not clash.

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