Material design is a comprehensive guide for visual, motion, and interaction design across platforms and devices. QR/Barcode Reader uses Material design to enhance the user view. User-friendly QR/Barcode scanning layout developed in Android Studio... https://abhiandroid.com/sourcecode/qrbarcode

2. What is a QR Code?
QR Code stands for Quick Response Code.
QR Code is actually a 2 dimensional
barcode. A QR Code consist of black squares
over a white background, and it can store
some data, which can be read by camera or
other imaging devices. Below you can see a
sample QR Code.

3. QR Code And BarCode

4. Generating a QR Code
A QR code consists of black squares arranged in a square grid on a
white background, which can be read by an imaging device such as
a camera, and processed using Reed–Solomon error correction until
the image can be appropriately interpreted.

5. Creating a new Project
❖ As always create a new
Android Studio project.
❖ I just created Android QR
Code Scanner.

6. Adding Zxing Library
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})

7. Now sync your project with gradle.
compile 'com.android.support:appcompat-v7:25.0.1'
testCompile 'junit:junit:4.12'
//add this dependency
compile 'com.journeyapps:zxing-android-embedded:3.4.0'
}

8. Creating User Interface
We have two values (Name, Address) in the QR
Code that we generated. So I designed the
following layout that will display Name and
Address.
We also have a button in the layout that will
open up camera for scanning the QR Code.

9. QR Barcode Scanner Android App Details
User-friendly QR/Barcode scanning layout developed in Android
Studio
https://abhiandroid.com/sourcecode/qrbarcode