protected void onCreate()

in HelloWorldApp/app/src/main/java/org/pytorch/helloworld/MainActivity.java [29:76]
30 lines of code
4 McCabe index (conditional complexity)

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Bitmap bitmap = null;
    Module module = null;
    try {
      // creating bitmap from packaged into app android asset 'image.jpg',
      // app/src/main/assets/image.jpg
      bitmap = BitmapFactory.decodeStream(getAssets().open("image.jpg"));
      // loading serialized torchscript module from packaged into app android asset model.pt,
      // app/src/model/assets/model.pt
      module = LiteModuleLoader.load(assetFilePath(this, "model.pt"));
    } catch (IOException e) {
      Log.e("PytorchHelloWorld", "Error reading assets", e);
      finish();
    }

    // showing image on UI
    ImageView imageView = findViewById(R.id.image);
    imageView.setImageBitmap(bitmap);

    // preparing input tensor
    final Tensor inputTensor = TensorImageUtils.bitmapToFloat32Tensor(bitmap,
        TensorImageUtils.TORCHVISION_NORM_MEAN_RGB, TensorImageUtils.TORCHVISION_NORM_STD_RGB, MemoryFormat.CHANNELS_LAST);

    // running the model
    final Tensor outputTensor = module.forward(IValue.from(inputTensor)).toTensor();

    // getting tensor content as java array of floats
    final float[] scores = outputTensor.getDataAsFloatArray();

    // searching for the index with maximum score
    float maxScore = -Float.MAX_VALUE;
    int maxScoreIdx = -1;
    for (int i = 0; i < scores.length; i++) {
      if (scores[i] > maxScore) {
        maxScore = scores[i];
        maxScoreIdx = i;
      }
    }

    String className = ImageNetClasses.IMAGENET_CLASSES[maxScoreIdx];

    // showing className on UI
    TextView textView = findViewById(R.id.text);
    textView.setText(className);
  }