Camera Frame Rate and Surface Visibility

[Lisandro79]

Hi David,

Congratulations on your repository, this is a very useful library for Android. We are implementing QrCodeReaderView in our app and we have two questions:

1. Is it possible to turn the surface view invisible? When we've tried (by adding android:visibility="invisible" to the layout or by directly setting that value in the MainActivity), the surface goes invisible, but the library stops scanning the qr-codes.

2. Is it possible to change the camera frame rate for the QrCodeReader View? Right now it is 30 frames a second by default, we would like to test the accuracy of the App at 10 fps.

Thanks a lot

Cheers