googlesamples%2Fandroid-vision%2FvisionSamples%2Focr-codelab%2Focr-reader-complete%2Fapp%2Fsrc%2Fmain%2Fjava%2Fcom%2Fgoogle%2Fandroid%2Fgms%2Fsamples%2Fvision%2Focrreader%2Fui%2Fcamera%2FGraphicOverlay.java