Zxing Camera in Portrait Mode on Android

How to use Zxing in portrait mode?

Just check out issue for Use Zxing in portrait mode.

Getting zxing to run in portrait mode

You could follow the instruction in the link to set up ZXing in your application. If not, you could download ZXing library into your computer and add it in libs folder.
After that, you could use ZXing in your app in Portrait mode or set it in a layout by using CompoundBarcodeView.

Please refer my project. I am using ZXing for it. Hope this help!

Zxing Camera in Portrait mode on Android

Here's how it works.

Step 1: Add following lines to rotate data before buildLuminanceSource(..) in decode(byte[] data, int width, int height)

DecodeHandler.java:

byte[] rotatedData = new byte[data.length];
for (int y = 0; y < height; y++) {
    for (int x = 0; x < width; x++)
        rotatedData[x * height + height - y - 1] = data[x + y * width];
}
int tmp = width;
width = height;
height = tmp;

PlanarYUVLuminanceSource source = activity.getCameraManager().buildLuminanceSource(rotatedData, width, height);

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Step 2: Modify getFramingRectInPreview().

CameraManager.java

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;

---

Step 3: Disable the check for Landscape Mode in initFromCameraParameters(...)

CameraConfigurationManager.java

//remove the following
if (width < height) {
  Log.i(TAG, "Display reports portrait orientation; assuming this is incorrect");
  int temp = width;
  width = height;
  height = temp;
}

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Step 4: Add following line to rotate camera insetDesiredCameraParameters(...)

CameraConfigurationManager.java

camera.setDisplayOrientation(90);

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Step 5: Do not forget to set orientation of activity to portrait. I.e: manifest

Custom Camera view using ZXING in Portrait Mode. Android

You can use the BarcodeView of the Zxing Library in your own Activity. This gives you the possibility to style the scanner and control the orientation.

https://github.com/journeyapps/zxing-android-embedded/blob/master/zxing-android-embedded/src/com/journeyapps/barcodescanner/BarcodeView.java

Android Zxing change orientation to portrait

After a lot of struggling, I found the problem, and I hope it will help someone in the future.

On initFromCameraParameters method in CameraConfigurationManager there is an assumption that the scan is ALWAYS in landscape mode, and therefor a fix when width < height.
If You follow the steps in the question and remove this check, it works fine.

Change QR Scanner orientation with ZXING in Android Studio

I am using

compile 'com.journeyapps:zxing-android-embedded:3.1.0@aar'

It is different version, so I don't know if this will work for you,
but this is working for me.

More about my setup, I only compile

'com.journeyapps:zxing-android-embedded:3.1.0@aar'

'com.google.zxing:core:3.0.1'

and I did not compile

'com.journeyapps:zxing-android-integration:2.0.1@aar'

First I created an activity extend from the CaptureActivity

or click this link to view the class https://gist.github.com/TheGratefulDev/21a557c9a96333ec037c

public class CaptureActivityPortrait extends CaptureActivity {
//Nothing in side.
}

Second, add this

integrator.setCaptureActivity(CaptureActivityPortait.class);

into your integrator code.

This is how mine looks like:

CustomIntegrator integrator = new CustomIntegrator(activity);
            integrator.setDesiredBarcodeFormats(CustomIntegrator.PDF_417);
            integrator.setPrompt("Scan a barcode");
            integrator.setCameraId(0);  // Use a specific camera of the device
            integrator.setOrientationLocked(true);
            integrator.setBeepEnabled(true);
            integrator.setCaptureActivity(CaptureActivityPortrait.class);
            integrator.initiateScan();

Finally, at the AndroidMaifest add

   <activity
        android:name=".custom.CaptureActivityPortrait"
        android:screenOrientation="portrait" <---this is the most important line
        android:stateNotNeeded="true"
        android:theme="@style/zxing_CaptureTheme"
        android:windowSoftInputMode="stateAlwaysHidden">
    </activity>

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