QR code scanner in Android app
<p>I want to scan QR-code in my app. I don't want to use ZXing, since it refers to Google Play if the user doesn't have this application installed on the device. I also found this: <a href="https://github.com/Gnzlt/AndroidVisionQRReader" rel="nofollow">https://github.com/Gnzlt/AndroidVisionQRReader</a> , but I cannot install it to the Android Studio, all 3 method proposed by the author faild. 
Maybe you know something else (maybe to just put a dependency into the gradle)?</p>