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    <ol> <li><p>In order to make screen work in portrait, set portrait orientation for the activity (e.g. in manifest) and then config the camera: Use camera.setDisplayOrientation(90) in CameraConfigurationManager.setDesiredCameraParameters(Camera camera). But be aware that: </p> <ul> <li>setDisplayOrientation(int) requires Android 2.2 </li> <li>setDisplayOrientation(int) does not affect the order of byte array passed in PreviewCallback.onPreviewFrame. (Refer to JavaDoc for additional info)</li> </ul></li> <li><p>Because preview frames are always in "landscape", we need to rotate them. I used clockwise rotation offered by <a href="https://code.google.com/p/zxing/issues/detail?id=178#c11" rel="nofollow">comment #11</a>. Do not forget to swap width and height parameters after rotation. DecodeHandler.java, rotate data before buildLuminanceSource in decode(byte[] data, int width, int height)</p> <pre><code>rotatedData = new byte[data.length]; for (int y = 0; y &lt; height; y++) { for (int x = 0; x &lt; width; x++) rotatedData[x * height + height - y - 1] = data[x + y * width]; } int tmp = width; // Here we are swapping, that's the difference to #11 width = height; height = tmp; </code></pre></li> <li><p>I also modified CameraManager.java, getFramingRectInPreview(), as recommended by #c11:</p> <pre><code>rect.left = rect.left * cameraResolution.y / screenResolution.x; rect.right = rect.right * cameraResolution.y / screenResolution.x; rect.top = rect.top * cameraResolution.x / screenResolution.y; rect.bottom = rect.bottom * cameraResolution.x / screenResolution.y; </code></pre></li> <li><p>I did not modify getCameraResolution(). That's the second difference to #c11.</p></li> </ol> <p>As a result, I've got UPC and other 1D codes scanning work in portrait.</p> <p>P.S. Also you may adjust the size of FramingRect (that's the rectangle visible on the screen during scanning), and FramingRectInPreview will be adjusted automatically.</p>
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    1. POHow to use Zxing in portrait mode?
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