CameraActivity.java 文件源码

public void onPreviewSizeChosen(final Size size, final int rotation) {

    previewWidth = size.getWidth();
    previewHeight = size.getHeight();

    final Display display = getWindowManager().getDefaultDisplay();
    final int screenOrientation = display.getRotation();

    LOGGER.i("Sensor orientation: %d, Screen orientation: %d", rotation, screenOrientation);

    sensorOrientation = rotation + screenOrientation;

    LOGGER.i("Initializing at size %dx%d", previewWidth, previewHeight);
    rgbBytes = new int[previewWidth * previewHeight];
    rgbFrameBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
    croppedBitmap = Bitmap.createBitmap(INPUT_SIZE, INPUT_SIZE, Bitmap.Config.ARGB_8888);

    frameToCropTransform =
        ImageUtils.getTransformationMatrix(previewWidth, previewHeight, INPUT_SIZE, INPUT_SIZE,
            sensorOrientation, MAINTAIN_ASPECT);

    Matrix cropToFrameTransform = new Matrix();
    frameToCropTransform.invert(cropToFrameTransform);

    yuvBytes = new byte[3][];
  }