What is a QR-Code
QR code (abbreviated from Quick Response Code ) is the trademark for a type of matrix barcode (or two-dimensional barcode ) first designed for the automotive industry in Japan . A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji ) to efficiently store data; extensions may also be used. supported extensions, virtually any type of data.
This is by far the easiest ,secure and most convenient way to connect to a Wifi network.
Using this App scanner person connect to your WiFi without password,just scan and connect.Your Wifi Name should have simple name(Without Special characters).
Now any one of the almost 500 million people with Barcode Scanner app can scan it and instantly connect to a network. Since Barcode Scanner is one of the more widely used QR code readers, the person scanning doesn’t need to download anything special to connect your network.
Generate WiFi QR Code image
Scan QR Code very fast and connect directly to WiFi.
Using Zxing SDK and Latest Google Play Service
Well documented Code
Android Studio Project