我在Android.mk
文件中定义了一些变量(正在为编译器传递一些标志),但是每次构建项目时,Android.mk
都会被覆盖。我假设Gradle
是负责任的,我应该去那里看吗? 如何使用自己的Android.mk文件?
背景信息:Ubuntu
64位,Android Studio
1.0.1,JDK7。
我已经用O-LLVM NDK包裹了NDK
版本,因此正在编辑Android.mk
(这是我的项目目录中唯一的app/build/intermediates/ndk/debug
文件)中的Android.mk
文件,这与O-LLVM
的文档给出示例的位置不同。
另外,没有Application.mk
文件,因此我再次假设Gradle
负责对编译器的调用?
更新信息
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:我尚未传递任何标志,我正在尝试首先使用Vanilla构建
最佳答案
是的,默认情况下,gradle android插件会重新生成并使用其自己的Android.mk文件来编译您的源代码。
您可以通过在build.gradle配置文件中进行设置来停用此功能并使用自己的Android.mk文件:
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,如果只需要将自己的标志传递给自动生成的Makefile,则可以在
cFlags ""
属性中设置这些标志,以在android { ndk {}}
内部设置
关于gradle - 如何在Android Studio中使用我自己的Android.mk文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27833530/