Fix: rotation on some android devices

[MrLibya]

Error

On some android devices the photo is rotated

Solution

This caused by lack of some exif rotation is not read on creating the new bitmap for rotation.

[MrLibya]

@taboulot

[taboulot]

Hi @MrLibya do you a device example on which it does not work ?

[taboulot]

@MrLibya

I think I finally understand the problem. I've detailed it in this issue #402.
Unfortunately your PR does not fix the problem (on both iOS & Android) has it does not take into account the flip operation.

With your fix if the image has an exif orientation value = 4 :

I think we will have this result:

Instead of this one:

[MrLibya]

Sorry for not providing example code I was busy, I'll look into that and see what I can do

[MrLibya]

@taboulot I've added handing for mirrored ( flipped ) image exif, I've used those images to test on https://github.com/recurser/exif-orientation-examples

Code test: https://gist.github.com/MrLibya/cabea9cbbb776cc5e77bf1a56df2d8d2

[felansu]

i need this!!

[MrLibya]

@taboulot anything else needed?

[taboulot]

Can you also add a new bullet point in section Limitation on the README to explain that EXIF orientation code is correctly handl on Android but not yet on iOS with a link to this issue: #402 ?

[taboulot]

@MrLibya

I left 2 comments.
I'm on vacation, and I'm going to stay that way for a while. My response times are therefore variable, but I will remain available for the next few days.

[MrLibya]

@taboulot Done ✅

[taboulot]

@MrLibya

Perfect 👌 I will release it in few minutes