Some example of OCR vision text for android

Does anyone have an example of ocr that detects the text with the camera and that is working?

I have already searched and followed the google tutorial:

link

and it does not work anymore, change the version of the dependencies

compile 'com.android.support:support-v4:23.0.1'
compile 'com.android.support:design:23.0.1'
compile 'com.google.android.gms:play-services-vision:9.0.0+'

and it still does not work apparently does not download the dependence on OCR.

On my device I have 2 GB free internal memory.

Someone who can help me with a functional example thanks.