WebcamTexture autofocus solution

Hello,

I work on a barcode reader for a few days.
I made an algorithm that work well but I had a problem with WebcamTexture: the autofocus!
I needed to wait loo long to have a sharp image...

I know many people have the same problem so here is a solution!
/!\ Warning: This is a hack level 9000, but it's the only solution that worked for me...

First you need DexManager:
http://forum.xda-developers.com/android/software/tool-dex-manager-v1-0-designed-to-play-t2988532

This software can decompile .dex files, the equivalent of .jar files for Android.

Decompile the file:
"Unity install folder"\Editor\Data\PlaybackEngines\androidplayer\Variations\mono\Release\Classes\classes.dex

In the sources, browse for "a.smali", it's the CameraManager class. If this is not the correct file search a file that contains "android/hardware/Camera", it's must be the only one.

In this file, find the text "continuous-video". It's the autofocus mode that Unity uses by default. Replace all occurrences by "continuous-picture".

Recompile the .dex file with DexManager and replace the one in Unity install folder with it.

Now when you package your .apk, Unity will use the new .dex with a nice autofocus.

Enjoy!

 

Neat trick! Also, you should consider using NatCam. It features 4 different focus modes and fast barcode detection.

 

When will it be available again?