Camera preview is in portrait mode but image captured is rotated

Question

I am trying to capture a photo using the camera. The preview by default was in landscape mode which i could change it to portrait mode using

    setCameraDis         


        

Answer 1

I faced the same problem when taking photo from camera in portrait mode. Below lines of code solved my problem:

public static void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) {
    android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
    android.hardware.Camera.getCameraInfo(cameraId, info);
    int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
    int degrees = 0;
    switch (rotation) {
    case Surface.ROTATION_0:
            degrees = 0;
            break;
    case Surface.ROTATION_90:
            degrees = 90;
            break;
    case Surface.ROTATION_180:
            degrees = 180;
            break;
    case Surface.ROTATION_270:
            degrees = 270;
            break;
    }

    int result;
    if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            result = (info.orientation + degrees) % 360;
            result = (360 - result) % 360; // compensate the mirror
    } else { // back-facing
            result = (info.orientation - degrees + 360) % 360;
    }
    camera.setDisplayOrientation(result);
}

Call setCameraDisplayOrientation() method in surfaceCreated callback as the following:

@Override
public void surfaceCreated(SurfaceHolder holder) {
    camera = Camera.open();
    setCameraDisplayOrientation(getActivity(), CameraInfo.CAMERA_FACING_BACK, camera);
}

I had to rotate the image in Camera onPictureTaken() callback:

camera.takePicture(null, null, new PictureCallback() {

        @Override
        public void onPictureTaken(byte[] data, Camera camera) {

            if (data != null) {
                int screenWidth = getResources().getDisplayMetrics().widthPixels;
                int screenHeight = getResources().getDisplayMetrics().heightPixels;
                Bitmap bm = BitmapFactory.decodeByteArray(data, 0, (data != null) ? data.length : 0);

                if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
                    // Notice that width and height are reversed
                    Bitmap scaled = Bitmap.createScaledBitmap(bm, screenHeight, screenWidth, true);
                    int w = scaled.getWidth();
                    int h = scaled.getHeight();
                    // Setting post rotate to 90
                    Matrix mtx = new Matrix();
                    mtx.postRotate(90);
                    // Rotating Bitmap
                    bm = Bitmap.createBitmap(scaled, 0, 0, w, h, mtx, true);
                }else{// LANDSCAPE MODE
                    //No need to reverse width and height
                    Bitmap scaled = Bitmap.createScaledBitmap(bm, screenWidth,screenHeight , true);
                    bm=scaled;
                }
                photoPreview.setImageBitmap(bm);
            }
            isImageCaptured = true;
            photoPreview.setVisibility(View.VISIBLE);
            surfaceView.setVisibility(View.GONE);
        }
});

Answer 2

Below code worked for me for Front facing camera.

if (data != null) {
                try {
                    int screenWidth = getResources().getDisplayMetrics().widthPixels;
                    int screenHeight = getResources().getDisplayMetrics().heightPixels;
                    bm = BitmapFactory.decodeByteArray(data, 0,
                            (data != null) ? data.length : 0);
                    CameraInfo info = new CameraInfo();
                    Camera.getCameraInfo(cameraFace, info);
                    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
                        // Notice that width and height are reversed
                        // Bitmap scaled = Bitmap.createScaledBitmap(bm,
                        // screenHeight, screenWidth, true);
                        // int w = scaled.getWidth();
                        // int h = scaled.getHeight();
                        // Setting post rotate to 90
                        Matrix mtx = new Matrix();
                        mtx.postRotate(90);
                        if (cameraFace == CameraInfo.CAMERA_FACING_FRONT)
                            mtx.postRotate(180);
                        // Rotating Bitmap
                        bm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(),
                                bm.getHeight(), mtx, true);
                    } else {// LANDSCAPE MODE
                        Bitmap scaled = Bitmap.createScaledBitmap(bm,
                                screenWidth, screenHeight, true);
                        bm = scaled;
                    }
                } catch (Exception e) {
                } catch (Error e) {
                }
            }

Answer 3

Yes, I tried the way in the answer, it works for back camera, for front camera, it need to rotate 270 not 90. :)