01 基本配置

安裝studio 最新版本。重點關注
android sdk/ndk

set NDK_ROOT=D:\install\Android\AndroidSDK\ndk-bundle

%NDK_ROOT%\bin加入PATH環境變數。

關注一下自己下載的build_tools版本

D:\install\Android\AndroidSDK\build-tools\28.0.2
D:\install\Android\AndroidSDK\build-tools\28.0.3

tensorflow程式碼下載 ，android版本的demo在examples\android裡面,切換到當期相對穩定tag下。

git clone --recurse-submodules https://github.com/tensorflow/tensorflow.git
git checkout -b b1.11.0-rc2 v1.11.0-rc2

02 修改基本資訊

使用android studio 開啟 \tensorflow\tensorflow\examples\android 專案。
做些簡單修改。

專案sdk/ndk基本配置，修改檔案 tensorflow\WORKSPACE

把bazel修改為自己本地安裝的版本。本地安裝的是0.17.2
check_bazel_version_at_least("0.15.0") ==> check_bazel_version_at_least("0.17.2")

api_level、build_tools_version、sdk的path，ndk的path一定要根據自己的實際情況設定。如下。

# Uncomment and update the paths in these entries to build the Android demo.
android_sdk_repository(
     name = "androidsdk",
     api_level = 28,
     # Ensure that you have the build_tools_version below installed in the
     # SDK manager as it updates periodically.
     build_tools_version = "28.0.3",
     # Replace with path to Android SDK on your system
     # path = "/Users/baishixian/Library/Android/sdk",
	 path = "D:/install/Android/AndroidSDK",
 )
#
android_ndk_repository(
    name="androidndk",
    # path="/Users/baishixian/Library/Android/sdk/android-ndk-r14b",
	path= "D:/install/Android/AndroidSDK/ndk-bundle",
    # 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=28)
 

修改生成apk名稱,tensorflow_demo ==> zdx_demo。

android_binary(
    #name = "tensorflow_demo", # 修改專案名稱
    name = "zdx_demo",

更換圖示資源

tensorflow\tensorflow\examples\android\res\drawable-hdpi\ic_launcher.png
tensorflow\tensorflow\examples\android\res\drawable-mdpi\ic_launcher.png
tensorflow\tensorflow\examples\android\res\drawable-xhdpi\ic_launcher.png
tensorflow\tensorflow\examples\android\res\drawable-xxhdpi\ic_launcher.png

修改字串資源

tensorflow\tensorflow\examples\android\res\values\base-strings.xml
TensorFlow Demo ==> Zdx Demo
TF Classify ⇒ Zdx Classify
TF Stylize  ⇒ Zdx Stylize
TF Speech ⇒ Zdx Speech

03 編譯

在tensorflow目錄下執行如下命令:

bazel build -c opt //tensorflow/examples/android:zdx_demo

如果前面沒有修改apk，這裡就還使用tensorflow_demo

bazel build -c opt //tensorflow/examples/android:tensorflow_demo

編譯完成後，根據提示找到自己的目標檔案。
本例中生成目標檔案如下：

C:/users/soft/_bazel_soft/qe65roea/execroot/org_tensorflow/bazel-out/x64_windows-opt/bin/tensorflow/examples/android/zdx_demo.apk

傳送到android手機後模擬器即可。