macos - Android Studio 中无法识别路径变量(无法识别 ndk-build 命令)

Question

我有一个 Android Studio 项目，它无法识别为 ndk-build 设置的 PATH 变量。

如果我运行 ndk-build从终端我得到:

stpns-MacBook-Pro:~ stepanboltalin$ ndk-build
  Android NDK: Could not find application project directory !    
  Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.    
  /usr/local/Cellar/android-ndk/r10b/build/core/build-local.mk:148: *** Android NDK: Aborting    .  Stop.

但是，如果我尝试在 Android Studio 中编译项目，则会在“ndk-build”命令行中出现错误(以下是 build.gradle 的摘录:

task ndkBuild(type: Exec) {

 # some stuff... 

    if (ant.properties.os == 'windows') {
        commandLine 'ndk-build.cmd'
    } else {
        commandLine 'ndk-build'
    }


}

现在，如果我添加绝对路径，一切正常:

task ndkBuild(type: Exec) {

 # some stuff... 

    if (ant.properties.os == 'windows') {
        commandLine 'ndk-build.cmd'
    } else {
        commandLine '/usr/local/opt/ndk-build'
    }


}

虽然问题似乎已经解决，但像这样的 build.gradle 对于开发来说并不是最佳选择。我怎样才能解决这个问题？

Answer 1

您可以在根项目的 local.properties 文件中添加 NDK 的路径:

ndk.dir=/opt/android/ndk

然后像这样替换 ndk-build 的调用:

def localProperties = new Properties()
localProperties.load(project.rootProject.file('local.properties').newDataInputStream())
def ndkDir = localProperties.getProperty('ndk.dir')
def ndkBuildPrefix = ndkDir != null ? ndkDir + '/' : '';

if (ant.properties.os == 'windows') {
    commandLine ndkBuildPrefix + 'ndk-build.cmd'
} else {
    commandLine ndkBuildPrefix + 'ndk-build'
}