如何使用与Android Sudio我自己的Andr​​oid.mk文件 [英] How to use my own Android.mk file with Android Sudio

问题描述

我定义了 Android.mk 文件（我传递的编译器的一些标志）内的一些变数，但每次我建立我的项目中， Android.mk 将被覆盖。我假设摇篮负责，而我应该找吗？ 如何使用我自己的Andr​​oid.mk文件？

I am defining some variables within the Android.mk file (I am passing some flags for the compiler), but every time I build my project, the Android.mk is overwritten. I am assuming that Gradle is responsible and that I should be looking there? How do I use my own Android.mk file?

背景资料：

的Ubuntu 64， Android的工作室 1.0.1，JDK7。
我有我的包裹 NDK 版本<一个href=\"https://fuzion24.github.io/android/obfuscation/ndk/llvm/o-llvm/2014/07/27/android-obfuscation-o-llvm-ndk/\"相对=nofollow> O型LLVM NDK 的，正因为如此我编辑>位于 Android.mk 文件app /编译/中间体/ NDK /调试（这是唯一我的项目目录内的 Android.mk 文件）的位置不同，该文档为 O型LLVM 给出了一个例子。

Ubuntu 64bit, Android Studio 1.0.1, JDK7. I have wrapped my NDK version with O-LLVM NDK, and as such am editing the Android.mk file located at app/build/intermediates/ndk/debug (it's the only Android.mk file within my project dir), different to the location that the doc for O-LLVM gives examples of.

此外，没有 Application.mk 文件，所以我再次假设摇篮负责调用编译器？

Also, there is no Application.mk file, so again I am assuming that Gradle is responsible for the calls to the compiler?

任何帮助将大大AP preciated。

Any help would be greatly appreciated.

凯尔

更新信息

的build.gradle - （应用程序）

//The following code until the "----" line is the new build.gradle config file
// that disables automatic Android.mk file generation

import org.apache.tools.ant.taskdefs.condition.Os
apply plugin: 'com.android.application'

android {

    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.md.helloworld"
        minSdkVersion 15
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
        ndk {
            moduleName "MyLib"
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    sourceSets.main {
        jniLibs.srcDir 'src/main/libs' //set libs as .so's location instead of jni
        jni.srcDirs = [] //disable automatic ndk-build call with auto-generated Android.mk file
    }

    // Call regular ndk-build (.cmd) script from the app directory
    task ndkBuild(type: Exec) {
        commandLine 'ndk-build', '-C', file('src/main/').absolutePath
    }

    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn ndkBuild
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
}

/*
//The following code is the original Android.mk file

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.md.helloworld"
        minSdkVersion 15
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
        //The only modified line
        ndk {
            moduleName "MyLib"
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
}
*/

Android.mk

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := helloWorld
LOCAL_SRC_FILES := main.c

LOCAL_LDLIBS := -static

include $(BUILD_EXECUTABLE)

Application.mk

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

APP_ABI := armeabi

NDK_TOOLCHAIN_VERSION := clang3.4-obfuscator

include $(BUILD_EXECUTABLE)

请注意：我不传递任何CFLAGS只是还没有，我想获得一个香草打造一流工作的

Please note: I am not passing any cflags just yet, I am trying to get a Vanilla build working first

推荐答案

是，默认情况下gradle这个Android插件再生和使用自己的 Android.mk 的文件，编译源。

yes, by default the gradle android plugin regenerates and uses its own Android.mk file to compile your sources.

您可以禁用此和使用自己的 Android.mk 的文件，而不是通过设置这里面你的的build.gradle 的配置文​​件：

You can deactivate this and use your own Android.mk file instead, by setting this inside your build.gradle configuration file:

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

    sourceSets.main {
        jniLibs.srcDir 'src/main/libs' //set libs as .so's location instead of jniLibs
        jni.srcDirs = [] //disable automatic ndk-build call with auto-generated Android.mk
    }

    // call regular ndk-build(.cmd) script from app directory
    task ndkBuild(type: Exec) {
        if (Os.isFamily(Os.FAMILY_WINDOWS)) {
            commandLine 'ndk-build.cmd', '-C', file('src/main').absolutePath
        } else {
            commandLine 'ndk-build', '-C', file('src/main').absolutePath
        }
    }

    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn ndkBuild
    }
}

请注意，如果你只需要通过自己的CFLAGS到自动生成的Makefile中，可以设置这些在 CFLAGS属性里面里面<$ C设置$ C>的Andr​​oid NDK {{}}

Note that if you only need to pass your own cflags to the auto-generated Makefile, you can set these inside the cFlags "" property to set inside android { ndk {}}

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