[英]Gradle/android: single ndk build for multiple flavors?
i've got a build.gradle file setup with the following (i've obviously excluded parts that shouldn't matter for brevity): 我有一个build.gradle文件设置与以下(我显然排除了为简洁起见无关紧要的部分):
android { defaultConfig { ndk { abiFilters 'armeabi', 'armeabi-v7a', 'x86' } }
productFlavors {
flavor1 { ... }
flavor2 { ... }
flavor3 { ... }
flavor4 { ... }
flavor5 { ... }
}
buildTypes {
debug {
externalNativeBuild { ndkBuild { cFlags '-DDEBUG' } }
...
}
release {
externalNativeBuild { ndkBuild { cFlags '-DRELEASE' } }
...
}
}
externalNativeBuild {
ndkBuild {
path 'jni/Android.mk'
}
}
it works , but it compiles the native code for each flavor+buildType. 它工作 ,但它编译每个flavor + buildType的本机代码。 so not only debug and release, but also flavor1Debug, flavor2Release, etc., which takes forever
所以不仅调试和发布,而且还有flavor1Debug,flavor2Release等,这需要永远
how do i tell gradle to only do the externalNativeBuild for the two build types, and to use those for all the flavors? 我如何告诉gradle只为两种构建类型执行externalNativeBuild,并将它们用于所有类型?
This is true, if you look into the file .externalNativeBuild/ndkBuild/flavor1Debug/armeabi/ndkBuild_build_command.txt
, you will see something similar to mine: 这是真的,如果你查看文件
.externalNativeBuild/ndkBuild/flavor1Debug/armeabi/ndkBuild_build_command.txt
,你会看到类似于我的东西:
Executable : ~/Library/Android/sdk/ndk-bundle/ndk-build
arguments :
NDK_PROJECT_PATH=null
APP_BUILD_SCRIPT=~/proj/jni/Android.mk
APP_ABI=armeabi
NDK_ALL_ABIS=armeabi
NDK_DEBUG=1
APP_PLATFORM=android-21
NDK_OUT=~/app/build/intermediates/ndkBuild/flavor1/debug/obj
NDK_LIBS_OUT=~/app/build/intermediates/ndkBuild/flavor1/debug/lib
APP_SHORT_COMMANDS=false
LOCAL_SHORT_COMMANDS=false
-B
-n
jvmArgs :
and so on for each buildVariant . 等等每个buildVariant 。 What you can do to reduce build time?
你可以做些什么来减少构建时间?
Extract the time-consuming part into a static library (or a set of static libraries), and leave only final link for the integrated ndkBuild
. 将耗时的部分提取到静态库(或一组静态库)中,并仅为集成的
ndkBuild
保留最终链接。 Use these static libraries as $(PREBUILT_STATIC_LIBRARY)
. 将这些静态库用作
$(PREBUILT_STATIC_LIBRARY)
。
Disable the integrated ndkBuild altogether, and set 完全禁用集成的ndkBuild,然后设置
jniLibs.srcDir 'src/main/libs'
The easiest way to disable integrated ndkBuild is by pointing 禁用集成ndkBuild的最简单方法是通过指向
jni.srcDirs = []
But you can also keep Android Studio indexing of your cpp files, but disable the gradle task: 但您也可以保留Android Studio索引cpp文件,但禁用gradle任务:
tasks.all { task -> if (task.name.startsWith('compile') && task.name.endsWith('Ndk')) { task.enabled = false } }
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