Kindle Fire HDX camera orientation inverted

[srowen]

Install BarcodeScanner-4.5.1.apk from the downloads section on a Kindle Fire HDX
Notice that the UI is properly oriented in landscape mode but the camera preview is inverted (up-side-down)

The UI should be properly oriented in landscape mode (as it is) but the camera preview should also be right-side-up.

This issue occurs whether the Kindle's "Auto-Rotate" feature is enabled or disabled.

Ported from https://code.google.com/p/zxing/issues/detail?id=1833

[zakir-hossain]

It seems I am having similar problems with HTC Wildfire S, Nexus 4, Samsung 10" tabs. Waiting for a solution on this. Thanks

[srowen]

I'm waiting for more info from someone with this device. https://code.google.com/p/zxing/issues/detail?id=1833

[ArloL]

I can reproduce this with the Samsung Galaxy Tab 2 7.0.

Steps to reproduce:

1. Enable screen rotation
2. Flip to the right
3. Disable screen rotation
4. Open Barcode Scanner
5. See screenshot

If bryancal is not reachable anymore I can test with BS+ if you want.

Another interesting behavior is that when you do not disable the screen rotation (step 3) the screen is flipped by 180 degrees:

[srowen]

That just looks like a device or sensor problem, right? Android thinks it is in the opposite orientation. Does anyone have a patch to suggest? AFAICT this is specific to the Kindle Fire.

[ArloL]

I just tested with my app. The problem is that screen orientation is set to landscape. It should be sensorLandscape.

[srowen]

Ah I think you have it. So if you change this value, it works as expected? Yes, there should be no reason to not let it use either landscape or reverse landscape. I'll try it on my own device (not a tablet or Kindle) to make sure it behaves as expected for me too.

[ArloL]

What android versions do you support? sensorLandscape was added in API level 9. There is also a userLandscape but a quick search did not reveal what exactly it does.

[srowen]

API 15+ so that is fine. It works OK on my phone and I see why it would
help the tablet situation where the natural landscape is not obvious. If it
works for the Fire I will commit it.
On Feb 26, 2014 12:44 PM, "ArloL" notifications@github.com wrote:

What android versions do you support? sensorLandscapehttps://developer.android.com/guide/topics/manifest/activity-element.html#screenwas added in API level 9. There is also a userLandscape but a quick search
did not reveal what exactly it does.

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[delta62]

It appears that this functionality is glitchy on Galaxy Nexus running API level 17. Since the latest update, my handset does this when the device is "upside down":

[srowen]

Not sure what to make of that. The app does not set any camera rotation
params and never has:

https://github.com/zxing/zxing/blob/master/android/src/com/google/zxing/client/android/camera/CameraConfigurationManager.java

The only way a working device would do this is if the wrong rotation params
were set, so this looks like a device problem.

Weirdly it may be caused by a different problem with a different camera
param. Try all the workarounds in settings.

On Mon, Mar 3, 2014 at 7:40 PM, Sam notifications@github.com wrote:

It appears that this functionality is glitchy on Galaxy Nexus running API
level 17. Since the latest update, my handset does this when the device is
"upside down":

[image: zxing-upside-down]https://f.cloud.github.com/assets/1361519/2313523/c6fa95e8-a30a-11e3-808b-3709d04aa4e0.png

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[ArloL]

Could it be solved using Camera.setDisplayOrientation?

[srowen]

I guess the point is, without calling that, it should never be in anything
but the natural orientation. That method is not called.

As a workaround, maybe that overrides it. But I suspect there is a deeper
problem, that the driver is failing to accept configuration that it says it
accepts. So the init is messed up.

This is not an app issue. To continue this, I'd have to see a proposed
workaround that does not affect other devices. Anything that affects
correct functioning of other devices to work around this is a non starter.

On Tue, Mar 4, 2014 at 2:26 PM, ArloL notifications@github.com wrote:

Could it be solved using:
https://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int)

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[delta62]

You're right about this being a device issue.

I'm seeing the same problem with Galaxy S3 and Galaxy S4 handsets. Both phones are running API level 18.

[veenakatdare]

has anyone resolved this?

[delta62]

Yes, this was patched and updated on the Play Store sometime around the 19th of March.

[SyedWasiHaider]

This is still an issue.

[judax]

I am developing a camera handling library myself and I can confirm this is an issue on the Kindle Fire HDX 10. I also have the BarCodeScanner installed and the image is upside down. My library also has this problem. Not sure how can be resolved though. Very much appreciated if someone could provide some feedback on the issue. Tested on many other devices: Kindle Fire HD, Samsung Galaxy S3, Nexus 7, ... and none of these devices show this behaviour.

[arnauorriols]

This is indeed still happening, on every device I can try.