java - QR code reading with camera - Android -


i researching build alarm clock application in android. utterly , new programming qr codes. know nothing it. right now, want find out feasibility of creating application qr code functionality. (i have 2 weeks build this)

my first question is: have handle camera myself in code i.e. have fire , close , process qr image?

2nd q: how create qr code , when scan it, how know scanned right one? want print one, place in kitchen or bathroom , when alarm goes off, have scan code before alarm turns off.

in android requires 10 minutes:

https://github.com/zxing/zxing/wiki/scanning-via-intent


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