如何为使用NDK和SDK构建的Android项目设置Travis CI

我已经搜索了很多地方,甚至在Travis CI文档页面,但我找不到问题的解决方案。问题是- 我已经在Travis CI上建立了一个Android项目,效果很好。现在,我需要为我的项目编译一些本机文件 .在我的本地机器中,设置工作正常 SDK 和 NDK 已安装。当我按下密码时,Travis抱怨 NDK公司 .所以,我想知道如何设置 NDK公司 为了特拉维斯。我关注以下链接---

https://github.com/googlesamples/android-ndk/blob/master/.travis.yml

Travis: how to know android sdk/ndk path?

https://github.com/travis-ci/travis-ci/issues/5395

但以上都不起作用。我的 travis.yml 文件位于下面--

# which language/platform is used
language: android
# JDK version
jdk:
- oraclejdk8

# root permission required?
sudo: required
dist: precise

# Environment variables
env:
  global:
  - BRANCH_NAME=$TRAVIS_BRANCH

# android components required to build code
android:
  components:
  - tools
  - platform-tools
  - build-tools-25.0.3
  - android-24
  - extra-android-m2repository
  - extra-google-m2repository
  - extra-google-google_play_services

# clean up old stuff before we get started
before_cache:
- rm -f $HOME/.gradle/caches/modules-2/modules-2.lock

# cache directories to use
cache:
  directories:
  - "$HOME/.gradle/caches/"
  - "$HOME/.gradle/wrapper/"

# Configurations to set up Android NDK
before_install:
    - rm -fr $HOME/android-ndk-r16b
    - curl -L http://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip -O
    - unzip -oq android-ndk-r16b-linux-x86_64.zip
    - rm android-ndk-r16b-linux-x86_64.zip
    - export ANDROID_NDK_HOME=$HOME/android-ndk-r16b
    - export PATH=$PATH:${ANDROID_NDK_HOME}

# Build script - which configs and creates the builds
script: "./my_script.sh"

通过此设置,Travis CI可以识别 NDK公司 但在运行我的构建脚本时,它无法找到它。下面是我的Travis构建日志--

android.install
Installing Android dependencies
creating directory /home/travis/.gradle/caches
adding /home/travis/.gradle/wrapper to cache
creating directory /home/travis/.gradle/wrapper
$ java -Xmx32m -version
java version "1.8.0_111"
Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)
$ javac -J-Xmx32m -version
javac 1.8.0_111
before_install.1
$ rm -fr $HOME/android-ndk-r16b
before_install.2
$ curl -L http://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip -O
before_install.3
$ unzip -oq android-ndk-r16b-linux-x86_64.zip
before_install.4
$ rm android-ndk-r16b-linux-x86_64.zip
before_install.5
$ export ANDROID_NDK_HOME=$HOME/android-ndk-r16b
before_install.6
$ export PATH=$PATH:${ANDROID_NDK_HOME}
$ ./build_cc_app.sh
To honour the JVM settings for this build a new JVM will be forked. Please consider using the daemon: https://docs.gradle.org/3.3/userguide/gradle_daemon.html.
Daemon will be stopped at the end of the build stopping after processing
Parallel execution with configuration on demand is an incubating feature.
NDK is missing a "platforms" directory.
If you are using NDK, verify the ndk.dir is set to a valid NDK directory.  It is currently set to /home/travis/android-ndk-r16b.
If you are not using NDK, unset the NDK variable from ANDROID_NDK_HOME or local.properties to remove this warning.
NDK is missing a "platforms" directory.
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ':client'.
> NDK not configured. /home/travis/android-ndk-r16b
  Download it with SDK manager.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 29.479 secs