How does Android convert URLs into QR codes

• Android

QR code has become an unavailable product in our daily life. There will be QR code on train tickets, scenic spot tickets, supermarket payment and so on.

This paper will realize the process of converting URL into QR code.

Let's take a look at the example diagram first

From the example figure, we can clearly see that the URL is converted into a QR code.

Now follow me to realize this function.

Import the open source library provided by Google

compile 'com.google.zxing:core:3.3.0'

Let's explain the core part: QR code conversion

① Generate QR code bitmap

② Add logo pattern in the middle of QR code

③ Create a QR code file storage directory

④ Create a database tool class to store temporary data

⑤ Display QR code

Construct a class for the input page and use the bundle to pass values through < key, value > (later, it will be changed to MVVM databinding)

Display the QR code image on the page (it will be changed to MVVM databinding later)

Layout file

① Input page (it will be changed to databinding later)

② QR code display page

The source code has been uploaded to GitHub, https://github.com/cnwutianhao/QRCode

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.

The content of this article comes from the network collection of netizens. It is used as a learning reference. The copyright belongs to the original author.
THE END
分享
二维码
< <上一篇
下一篇>>