After Android uses Zxing to scan the QR code and change it to a portrait screen, the preview screen is stretched and distorted.

After Android uses Zxing to scan the QR code and change it to a portrait screen, the preview screen is stretched and distorted.

Perfect solution: After Android uses Zxing to scan the QR code and changes it to a portrait screen, the preview screen is stretched and distorted.

Step 1: Find com.zxing.cameraPackage CameraConfigurationManager.javaFile void initFromCameraParameters(Camera camera)Method

Step 2: Log.d(TAG, Screen resolution: + screenResolution);Add the following code

Point screenResolutionForCamera = new Point();screenResolutionForCamera.x = screenResolution.x;screenResolutionForCamera.y = screenResolution.y;// preview size is always something like 480*320, other 320*480if (screenResolution.x < screenResolution.y) {    screenResolutionForCamera.x = screenResolution.y;    screenResolutionForCamera.y = screenResolution.x;}

Step 3: replace screenResolutionIs screenResolutionForCamera

cameraResolution = getCameraResolution(parameters, screenResolution);  

Replace the above Code with the following code (for example)

cameraResolution = getCameraResolution(parameters, screenResolutionForCamera);

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