相关疑难解决方法(0)

我今天开始使用Gradle,在搜索了一个小时并尝试了SO(例如1)和不同博客(例如2)和文档(例如3)的每个可能答案后,我需要一些帮助.

我的问题很简单:如何执行自定义构建步骤(在我的情况下,使用自定义的Android.mk执行ndk-build)作为常规构建过程的一部分？

build.gradle看起来像这样:

import org.apache.tools.ant.taskdefs.condition.Os

apply plugin: 'com.android.application'

android {
    compileSdkVersion 19
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "myApp.prototype"
        minSdkVersion 16
        targetSdkVersion 19

        testApplicationId "myApp.prototype.test"
        testInstrumentationRunner "android.test.InstrumentationTestRunner"
    }

    sourceSets.main.jni.srcDirs = []

    task ndkBuild(type: Exec, description: 'Compile JNI source via NDK') {
        def rootDir = project.rootDir
        def localProperties = new File(rootDir, "local.properties")
        Properties properties = new Properties()
        localProperties.withInputStream { instr ->
            properties.load(instr)
        }

        def ndkDir = properties.getProperty('ndk.dir')
        println ndkDir

        if (Os.isFamily(Os.FAMILY_WINDOWS)) {
            commandLine "$ndkDir\\ndk-build.cmd",
                    'NDK_PROJECT_PATH=build/intermediates/ndk',
                    'NDK_LIBS_OUT=src/main/jniLibs', …