#change pd model to tflite
 bazel-bin/tensorflow/contrib/lite/toco/toco    --input_file=model.pb    --input_format=TENSORFLOW_GRAPHDEF  --output_format=TFLITE   --output_file=/tmp/mobile.tflite --inference_type=FLOAT   --inference_input_type=FLOAT --input_arrays=input   --output_arrays=Reshape --input_shapes=1,224,224,3

#build apk
bazel build -c opt  --cxxopt='--std=c++11' //tensorflow/examples/tensorflow-android-speech-kws/android:tensorflow_demo