Ubuntu16.04编译tensorflow官方Android demo

1.下载tensorflow官方代码

git clone --recurse-submodules https://github.com/tensorflow/tensorflow.git

2.下载Android SDK和Android NDK

Android SDK下载：在安装Android Studio时进行选择，

https://developer.android.com/studio/index.html?hl=zh-cn

Android NDK

下载地址：https://developer.android.com/ndk/downloads/older_releases.html

选择NDK r12b进行下载，高版本(r14b)目前编译可能报如下错误

tensorflow/core/kernels/BUILD:4542:1: C++ compilation of rule '//tensorflow/core/kernels:android_tensorflow_kernels'
Failed: clang Failed: error executing command external/androidndk/ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
-gcc-toolchain external/androidndk/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 -fpic -ffunction-sections
... (remaining 73 argument(s) skipped): com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.

3.编辑tensorflow/WORKSPACE文件，取消部分注释后并填入sdk和ndk路径后如下

# Uncomment and update the paths in these entries to build the Android demo.
android_sdk_repository(
    name = "androidsdk",api_level = 26,# Ensure that you have the build_tools_version below installed in the
    # SDK manager as it updates periodically.
    build_tools_version = "25.0.2",# Replace with path to Android SDK on your system
    path = "/home/sc/Android/Sdk",)
#
# Android NDK r12b is recommended (higher may cause issues with Bazel)
android_ndk_repository(
    name="androidndk",path="/home/sc/android-ndk-r12b",#    # This needs to be 14 or higher to compile TensorFlow.
#    # Please specify API level to >= 21 to build for 64-bit
#    # archtectures or the Android NDK will automatically select biggest
#    # API level that it supports without notice.
#    # Note that the NDK version is not the API level.
   api_level=24)

build_tools_version参考Sdk下面build-tools文件夹名称，api_level为SDK对应的Android版本对应数字

好几分钟后，就会有编译成功的提示

Target //tensorflow/examples/android:tensorflow_demo up-to-date:
  bazel-bin/tensorflow/examples/android/tensorflow_demo_deploy.jar
  bazel-bin/tensorflow/examples/android/tensorflow_demo_unsigned.apk
  bazel-bin/tensorflow/examples/android/tensorflow_demo.apk
INFO: Elapsed time: 394.902s,Critical Path: 56.04s

生成的apk文件位于bazel-bin/tensorflow/examples/android/文件夹下

Ubuntu16.04编译tensorflow官方Android demo

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